Operating Manual - Trilety · 2020. 9. 9. · Suction Fan Unit The suction fan unit is mounted,...

STREET SWEEPER

TK-M29

Operating Manual

Specifications

Operating Instructions

Maintenance

List of Spare Parts

This manual is for mounting, operating and maintenance of the sweeper unit only.

TRILETY G.m.b.H. TK M29 V1.02 Engl. 12/2017

• Optional equipment Page 2

TABLE OF CONTENTS

TABLE OF CONTENTS ................................................................................................... 2

SPECIFICATIONS ........................................................................................................... 4 Technical Data ............................................................................................................. 4 Short Description ......................................................................................................... 5 Construction and Function ........................................................................................... 5 Base Framework .......................................................................................................... 6 Hopper ......................................................................................................................... 6 Suction Fan Unit .......................................................................................................... 8 Sweeping and Suction Unit ......................................................................................... 8 Swivelling Front Brush* ................................................................................................ 9 Spraying Water System ............................................................................................. 10 Hand Suction Hose .................................................................................................... 11 Electrical Bulky Debris Flap* ...................................................................................... 11 Used Water Recycling System* ................................................................................. 12 Support Legs .............................................................................................................. 12 Hydraulic System ....................................................................................................... 12 Electrical System ....................................................................................................... 13 Operating Principle .................................................................................................... 14

OPERATING INSTRUCTIONS ...................................................................................... 15 Safety Notes .............................................................................................................. 15 Preparation of the Chassis ......................................................................................... 16 Mounting and Demounting the Sweeper Unit ............................................................. 17

Mounting the Sweeper Unit ................................................................................................................ 18 Mounting the Sweeping and Suction Unit ........................................................................................... 24 Demounting the Sweeping and Suction Unit ...................................................................................... 26 Demounting the Sweeper Unit ............................................................................................................ 28

Sweeping Operation................................................................................................... 28 Controls M29 Chassis ......................................................................................................................... 29

Operating Panel (with options) ................................................................................... 30 Joystick ...................................................................................................................... 31 Sweeping ................................................................................................................... 32

Filling the Spraying Water Tank .......................................................................................................... 32

Starting the Sweeping Operation ............................................................................... 33 Normal Disk Brush Operation .................................................................................... 33

General Information for Sweeping ...................................................................................................... 34 Light Weed Brush instead of Right Disc Brush ................................................................................... 36



Swivelling Front Brush Operation ....................................................................................................... 37 Heavy Duty Weed Brush Operation .................................................................................................... 39 Emptying the Hopper .......................................................................................................................... 42 Working with the Hand Suction Hose* ................................................................................................ 46 Used Water Recycling System ........................................................................................................... 50

High Pressure Washing System* .............................................................................. 51

MAINTENANCE ............................................................................................................ 55 Chassis and Engine ................................................................................................... 56

Tipping the Sweeper Unit for Vehicle Maintenance ............................................................................ 56

Hopper ....................................................................................................................... 58 Baffle Plate .......................................................................................................................................... 58 Filter Screens ...................................................................................................................................... 58 Air Inlet Ducts ...................................................................................................................................... 58 Safety Support Bar.............................................................................................................................. 59

Spraying Water System ............................................................................................. 59 Parking by Freezing Temperatures .................................................................................................... 59 Water Pump ........................................................................................................................................ 60 Water Filter ......................................................................................................................................... 61 Cleaning Water Solenoid Valves ........................................................................................................ 62

Suction Fan ................................................................................................................ 63 Cleaning .............................................................................................................................................. 63 Fan Impeller Bearing .......................................................................................................................... 65 Suction Fan Motor Screws .................................................................................................................. 65 Used Water Circulation System .......................................................................................................... 66

Sweeping and Suction Unit……………………………………………….................. 67 Basic Settings ..................................................................................................................................... 67 Swivelling Front Brush ........................................................................................................................ 68 Adjustment Procedures ...................................................................................................................... 69

Hydraulic System ....................................................................................................... 74 Safety Tips .......................................................................................................................................... 74 General Information ............................................................................................................................ 74

Electrical System ....................................................................................................... 75

TROUBLESHOOTING .................................................................................................. 76 Sweeping and Suction Gear ............................................................................................................... 76 Hydraulic System ................................................................................................................................ 78

MAINTENANCE SCHEDULE ........................................................................................ 79

LIST OF SPARE PARTS ................................................................................................ 82

Texts with this symbol have to be observed absolutely!

Texts with tthe red framing contain working steps, that have to be performed absolutely! Otherwise damage could be caused to he vehicle, or health. Texts with the green framing contain working steps,which have to be conformed absolutely!



.

SPECIFICATIONS

TECHNICAL DATA

Chassis MULTICAR M29 Wheelbase 2190 mm Permitted total weight 6.000 kg Normal engine speed during sweeping 1,600 rpm Maximal engine speed during sweeping 2,400 rpm Hopper capacity ca. 1,9 m3 Water tank capacity ca. 300 l Sweeping width Standard max. 2,200 mm Sweeping width additional front brush max. 2,500 mm Suction fan capacity max. 7,500 m3/h Suction fan speed max. 3,400 rpm Suction vacuum during sweeping ca. 800 mm WS Maximum suction vacuum ca. 1,000 mm WS Sweeping speed ca. 1.5...10 km/h Vehicle length without front brush with rear suction hose ca. 5,500 mm Vehicle length with swivelling front brush ca. 6,500 mm Vehicle width without brush ca. 1,370 mm Vehicle height without rotating beacon ca. 2,050 mm Total weight, empty, without optional equipment, 2 disk brushes ca. 3,960 kg Payload ca. 2,040 kg

The sweeper unit should be only used to clean the street surface, park

places, underground garages and other solid surfaces plus to suck out canal ducts!

The sweeper must not be used for picking up material, that is explosive, inflammable, corrosive, or which may cause health hazard!

Any alterations to the construction of the sweeper unit can only be performed after being authorized by the manufacturer.



Short Description

The sweeper unit “TK-M29” is designed as an exchangeable unit for multifunctional small wheelbase MULTICAR M29 Carrier vehicle. The sweeper unit TK M29 is mounted on the ball joints of the carrier vehicle. The hydraulic and water connections are connected, using the quick release couplings at the front and rear of the vehicle. The sweeping and suction unit is mounted onto the vehicles front mounting joints.

Construction and Function

The sweeper unit TK M29 consists out of the following components:

1. Base Framework 2. Hopper 3. Fan Unit 4. Water System 5. Used Water Circulation System 6. Sweeping and Suction unit 7. Additional Brush 8. Hand Suction Hose 9. Double Boom 10. Support Legs

The entire sweeper unit can be fitted onto the ball joints of the M29 Carrier chassis, using a few easy steps. The hopper is located at the rear of the sweeper unit. Suction fan plus fan motor are located at the front of the sweeper unit. The water tank is built under the hopper into the frame. The sweeping and suction unit is mounted onto the front mounting joint of the M29 Carrier chassis. A large storage basket is built into the frame under the hopper. The sweeping and suction functions, including the hopper tipping control, are controlled through the:

• M29 Carrier hydraulic system • Electrical system



Base Framework

The entire sweeper unit is a construction onto a solid base framework, fabricated of rectangular tubes. The base framework can be mounted onto the ball joints of the vehicle chassis. Extra holding tubes are fitted on the base framework to strengthen the construction and to allow support legs to be inserted. The front section of the sweeper unit contains the machinery compartment, which is lined with sound absorbing material. The water tank is fitted under the hopper at the rear of the sweeper unit.

Hopper

The hopper is made of stainless steel and mounted onto the base framework, using robust bearing blocks. The hopper capacity is approx. 1,9 m3. The water tank is also constructed of stainless steel and has a volume of about 300 l. Observation flaps have been set into each side of the hopper, to be able to control the fill volume and to throw bulky objects into the hopper, which cannot be picked up by the suction hood. A wear-resistant elastic spiral hose, 180 mm in diameter, connects the suction hood with the hopper. A rubber-lined baffle plate is installed above the suction air inlet of the hopper. The sucked air flows via the filter plates, fitted on the upper right and left-hand side of the hopper, through the air duct to the suction fan and then into the exhaust-air duct. The contents of the hopper are emptied through a large flap that covers the entire rear side of the hopper. The flap is closed by hand, the flap is opened kept in the opened position using gas filled spring cylinders. The locking mechanism for the closed flap is operated using a hydraulic cylinder. The hopper is tipped by using 2 hydraulic cylinders and can be secured using the safety support bar.





Suction Fan Unit

The suction fan unit is mounted, elastically supported, at the front of the base framework. The fan unit is fitted with high-performance suction fan blades The suction efficiency has been adjusted, to ensure an optimal suction power of the sweepings being obtained. The suction fan unit is powered by a hydraulic axial piston motor flange, mounted onto the fan box. The hydraulic oil is supplied by the hydraulic system of the vehicle.

Sweeping and Suction Unit

The sweeping and suction gear is mounted onto the vehicle front mounting plate and consists of the following:

• Floating arm (automatically adjusted, so the sweeping and suction unit is parallel to the road surface, even when the road slopes)

• 2 steer able support wheels

• Suction hood with suction hose

• Bulky debris pick-up flap

• 2 disk brush units The suction hood with suction hose is mounted under the floating arm. The bulky debris pick-up flap is located at the front of the suction hood. The disk brush units are mounted onto the left and right side of the floating arm. Their height can be adjusted by hand. The brushes can also be swivelled outwards. While sweeping, the floating arm is pushed forwards on the two steer able support wheels. The sweeping and suction unit is raised and lowered from the road surface, using the vehicle hydraulic cylinder for the front mounting plate. To reduce the quantity of dust, raised while sweeping, all sweeping and suction units are fitted with water spray nozzles.



Swivelling Front Brush*

To increase the sweeping width and to perform better sweeping along kerbstones and sloping kerbs an optional swivelling brush can be fitted to the sweeping and suction unit. Note: When the optional swivelling front brush is fitted, the normal disk brushes are smaller and are fixed in position and cannot be swivelled! The optional swivelling brush consists of the following:

1* Extension Frame 2* Swivelling Arm 3* Passing equipment 4* Disk Brush

The swivelling brush is mounted on the extension arm, which is fitted to the front of the floating arm of the sweeping and suction unit. The brush is moved, tilted and lifted using hydraulic cylinders. The control is performed using the hydraulic system of the vehicle.



Spraying Water System

To reduce the production of dust while sweeping, and to absorb the swept dirt, the sweeper unit is fitted with a spray water system. The water tank is mounted onto the rear of the base framework under the hopper. The tank capacity is approx. 300 l. The tank is filled depressured through a connection with a Storz-C-coupling at the rear of the tank. The water level is visible on the water level gauge. The supplied hand spraying pistol serves for cleaning the discharge flap seals and the inside of the hopper, after the hopper contains have been dumped. The electrical water pump, (safe dry running) is designed in such a way, that it cannot be damaged, while running without water,. It sucks the water through a water filter and pumps it to 2 solenoid valves. One solenoid valve is for feeding the suction hood and the other is for the disk brushes. The suction hood is fitted with 4 spray nozzles and each disk brush is fitted with 2 adjustable spraying nozzles. The spraying water system consists of the following components:

• Water Tank ca.300 l • Water filling system • Water draining system • Electrically driven water pump • Solenoid valves for spray nozzles • Spray nozzles

Disk Brushes 2 pieces each brush Suction Hood 4 pieces

• Water filling hose plus Storz-C-coupling and filling filter, hydrant key. • Hand Spraying Pistol

ATTENTION:

The spray water system and the water tank have to be completely emptied, in the danger of freezing conditions!



Hand Suction Hose

For manual suction work, (e.g. emptying interceptor gullies, sucking up leaves, etc.) a hand suction hose with a length of 3 meter plus shock tube is fitted to the rear of the unit. A spray nozzle, connected to the coupling for the hand spraying pistol, moistens dry material. When the hand suction hose is used, the inlet between the sweeping –suction-unit and the hopper has to be closed by inserting a shut-off-plate plus the plate for the hand suction hose opened.

Electrical Bulky Debris Flap*

The bulky debris pick-up flap is mounted on the front of the suction hood and opens automatically, when bigger garbage (aluminium cans, plastic bottles, larger stones) is located in the sweepings. By the electrical setting (option) the distance between the pick-up flap and the ground can be adjusted variable, using an electrical motor, that is controlled from the cab.



Support Legs

The 4 support legs are used to raise, lower and store the complete sweeper unit, if it is not fitted to the vehicle. The support legs are fitted to the holding tubes in the base framework and can be raised and lowered approx. 300 mm using the crank handles. The complete sweeper unit should be always raised and lowered evenly, using the crank handles.

Used Water Recycling System*

The used water circulation system consists of a filter screen on the front hopper wall, which separates the water from large dirt particles. and an electrical ball cock valve. When the electrical ball cock valve is open, the water inside the hopper is directed to a connection in the suction hood wall via a water hose.

Hydraulic System

The hydraulic circuits are connected to the hydraulic system of the vehicle chassis using quick release couplings and control the following functions: • Suction fan drive • Disk brush drive • Tipping of the hopper • Discharge flap locking • Swivelling brush Drive * • Extension, lifting and tilting of swivelling brush* These functions are controlled using the control elements of the vehicle chassis in the cab.



Electrical System

All electrical contacts, plug and sockets, used for the connections between the vehicle and the sweeper unit, have to be sprayed with a commercial contact spray weekly, to prevent corrosion and the possibility of error conditions. The sweeper unit is fitted with a 12 volt DC - electrical system. The electrical power is supplied by the vehicle. The electrical system consists of the operating panel and an electrical distribution box, fitted above the front passenger seat. The electrical system serves the following functions:

• Water pump drive • Solenoid valves for the spray water • Bulky debris pick-up flap height cylinder • Used water recycling system • Locking valve for tipping and discharge flap locking • Optional extras*(rear-view camera, working light, warning beacons)



Operating Principle

The disk brushes sweep the debris in front of the suction hood. The sweeping width can be increased by actuating the swivelling brush* (optional equipment). The swivelling brush also facilitates the sweeping of road bays and between parked vehicles. To reduce the quantity of dust, raised while sweeping, the debris is sprayed with water by means of spray nozzles, fitted onto the sweeping and suction unit. The suction fan generates a vacuum in the hopper and the swept debris is sucked through the suction hood plus the flexible suction hose into the hopper. Due to the much larger cross-section, the sucked air speed in the hopper becomes considerably reduced, allowing the debris to settle in the hopper. A rubber-lined baffle plate, fitted above the suction connection piece in the hopper, protects the hopper roof from damage. The sucked air, free of debris, is directed through the filter screens into the suction fan and then to the exhaust air duct. The filter screens prevent bulky, but light debris (paper, leaves etc) moving into suction fan.

Separation grid

Baffle plate

Separation grid



OPERATING INSTRUCTIONS

SAFETY NOTES

The sweeper may only be mounted, demounted, operated and maintained by trained staffl!

Maintenance and mounting work should be only performed on flat and solid

surfaces. Before performing any maintenance on the hydraulic system, remove the

ignition key, relieve the system of pressure and allow the hydraulic system to cool down.

Always wear suitable protective clothing, when operating, or performing

maintenance on the sweeper unit. (Protective glasses, gloves, safety shoes)

Never touch the rotating brushes!

When the suction fan is rotating, keep a distance of at least 2 m away from the suction fan. Loose clothing, caps, gloves etc. could be sucked into the fan.

1* Before starting work inside the hopper, open the discharge flap as wide as

possible; remove the vehicle’s ignition key and keep it in a safe place, inaccessible for other people!

2* To access the observation flaps, use the foot- and handholds provided!

The safety support bar has to be inserted under all circumstances while

working underneath the tilted hopper!

3* While the hopper is lowered, ensure, that no people are within the danger zone of the equipment! The person, who is activating the tipper control, has to ensure the area to be clear, before and during the procedure of lowering the hopper!

4* The hopper should be tipped only, whenever the discharge flap lock is fully

opened – even, if the hopper is partly filled!

5* The vehicle should not be driven with the hopper raised! (only very slowly -max. 1 km/h and only short distance)

6* The hopper should be emptied in appropriate areas only! 7* Maintenance on the suction fan should be performed only, after the fan

impeller has stopped. For safety reasons, the ignition key of the vehicle



should be removed and kept in a safe place, that is inaccessible for other people.

8* Before starting the vehicle, ensure the rear suction being correctly stored

and locked in position!

9* When working with the hand suction hose, never reach into the suction tube. Bracelets, watches, gloves etc. could be sucked in.

The vehicle must not be overloaded! The disk brush transport locks have to be inserted during positioning journeys. Do not work with the sweeper unit with subfreezing temperatures. Park the

sweeper unit safe from freeze.

The hand pistol water hose must not be directed on people, or objects, which carry electricity!

Internal-combustion engines must not be kept running in closed, or narrow

spaces – danger of exhaust gas poisoning! Special care is necessary when mounting / removing the sweeper unit onto /

from the vehicle chassis! All material, that could be dangerous to the environment, have to be disposed

correctly (hydraulic oil, batteries, plastic parts etc.). All the hydraulic connections at the rear of the vehicle have to be connected

necessarily, if the hopper tipped. Otherwise the seals of the suction fan could be damaged. All hydraulic connections have to be plugged at all !

Note: The safety tips, specified in the following chapters, have to be observed under all circumstances additionally! The information “left” or “right” hand side always refer to the driving direction. Numbers in this symbol are hose or wire numbers.

Preparation of the Chassis

The M29-chassis, provided for the carrier vehicle, has to comply with the exchangeable sweeper body and has to be adapted to the following:

1* Hydraulic connections: Sweeper suction unit vehicle front side according to hydraulic diagram



Suction fan and tipping cylinder on the vehicle rear side 2* Electric connections for the sweeper on the rear and front side, plus in the cab 3* Water supply pipes with quick release connections 4* Used water recycling hose

Mounting and Demounting of the Sweeper Unit

The mounting and demounting of the sweeper unit should never be performed alone, but with the assistance of a second person. The exchangeable sweeper TK-M29 is designed as a quick-swap body for MULTICAR M29 chassis, and can be mounted with a few easy steps onto a chassis, that has been pre-fitted with the appropriate equipment: To ensure easy connection, all supply lines and cables (hydraulics, electrics, water) are fitted with quick connect. ! Caution !

Special care should be taken for changing the body – high risk of accidents, if the procedure is performed incorrectly!!

Note 1: Before the hydraulic connections for the sweeping and suction unit are plugged into the vehicle, the connections have to be pressure - released by pressing all the switches. (see original Multicar Operating Manual)

Note 2: The wheel chocks have to be removed from the original holder on the rear of the vehicle and placed into the holder on the left hand side of the sweeper unit.



Mounting the Sweeper Unit • Remove the tipping platform from the vehicle, using the vehicle manufacturer

instructions. • Insert the suction hose and connecting tube into the duct behind the vehicle

cabin. Spray the hose with silicon spray to faciliate the inducting into the channel.

• Tighten the screws, which hold the connection tube onto the vehicle. Ensure the

connection tube being correctly positioned with the markings.

• Fit the cover onto the suction connection tube and screw it into place.

remove. left and right



• Wind up the 4 sweeper unit support legs to site the sweeper unit for driving

underneath without touching the sweeper unit - approx 100 mm clearance. • Reverse the vehicle underneath the sweeper unit and position the vehicle, until

the ball joints are located on the level with the ball joint receptacles.

• • Evenly lower the rear support feet, until the rear mounting receptacles on the

sweeper body are fully fitted onto the vehicles rear ball joints.



• Insert and lock the safety pins for the rear ball joints.

• Remove the rear support feet from the sweeper unit.

• Position the vehicle tipping cylinder to be inserted into the receptacle on the sweeper unit.

• Extend the vehicle tipping cylinder until it is inserted into the receptacle on the sweeper unit. Attention: To prevent injury, while the cylinder is extended, only hold the cylinder on its outside.



• Extend the tipping cylinder just as high as the safety bolts for the cylinder can be inserted. Do not extend too high.

• Insert the ring splint pins to secure the safety bolts.

• Remove the front support feet from the sweeper unit.

• Lower the vehicle tipping cylinder, until it is fully lowered onto the front ball joints. Attention: Ensure no cables, or pipes crushing on the vehicle frame, as the sweeper unit is lowered!

• When the sweeper unit is fully lowered on to the front ball joints, insert the locking pins.

• At the rear of the vehicle, connect the hydraulic hose quick release connections according to the numbering.

• Connect the electrical connections, 2 connections. Note: A dummy plug is

connected on the left hand electrical socket. Remove the dummy plug and connect the connector from the sweeper unit. If this cable is not connected, the hopper cannot be tipped.

19

20,2

22 23

24



• Mount the operating panel and electrical connection box inside the driver´s cab(if

demounted).

• Connect the electrical connectors.

Note: If a camera system is fitted too, this also has to be connected, the connector is fitted behind the right hand seat.

25

18

30 31



• Raise the hopper approx. 1/3 (see chapter “Emptying the hopper” ) On the right hand side connect the hose for used recycling water and lay the camera cable into the cab.

• Connect camera cable. (behind passenger seat)

Connect the spraying water connections and the water pipe for the high pressure pump* on the left hand side.

29



Mounting the Sweeping and Suction Unit • Drive the vehicle to plane area (Caution when driving with inserted, but not connected suction hose).

• Lower the front mounting plate, until it rests approx. 150 mm above the ground.

• Drive up the sweeping and suction unit to the carrier plate to position the vehicles mounting plate in the sweeping and suction gear front frame correctly. • Raise the front mounting plate, until the connecting peg is correctly inserted in the hole of the sweeping and suction unit front frame.

• Wind the jack for the mounting cart in to raise the front wheel. Loosen the knob screws and slide the mounting cart to the side and remove the mounting cart from the sweeping and suction unit.

• Tighten the screw, that secures the sweeper and suction unit onto the mounting plate. • Slide the suction hose to the suction hood and lock it, using the clip. Couple the hose for the used water recycling system on to the connector

• Connect the hydraulic hose quick release connections according to the

numbering.

29



• Connect the electrical connection • Connect the water connections onto the quick release connections.

Note: Due to the different types, sizes, or colouring, the connections are protected from being incorrectly connected.

1

2

3 4

5 6

11

12

17



Demounting the Sweeping and Suction Unit • Drive the vehicle to plane area.

• Disconnect the hydraulic hose quick release connections.

• Disconnect the electrical connection

• Disconnect the water connections from the quick release connections.

• Remove and store the screw, that locks the sweeper and suction unit onto the mounting plate.

• Fit the mounting cart onto the sweeping and suction unit.

• Tighten the screws, which lock the mounting cart onto the sweeping and suction unit.

• Wind the jack for the mounting cart in, to lower the front wheel and fix the sweeping and suction gear, to stay plane on 3 wheels.

• Carefully lower the front mounting plate and ensure the locating peg being released from the hole in the top of the sweeping and suction gear front frame.

• Disconnect the suction hose from the suction hood. Release the hose for the used water recycling system from the connector.*

• Lower the front mounting joints, until it rests approx. 150 mm above the ground.

• Manoeuvre the sweeping and suction unit onto the mounting cart. Therewith the vehicles mounting plate is completely free of the sweeping and suction gear front frame. Note: When uncoupling the connections, check, if any markings have become illegible, or have been lost; renew the markings, if necessary. Protect the disconnected hydraulic couplings using dust covers.

Demounting the Sweeper Unit Ensure, that the removed sweeper unit will be stored on a plane and solid surface.

• Start the vehicle and tip the hopper to raise it approx. 1/3 height.

• Remove the wheel chocks from the holders in the sweeper unit.

• On the left hand side, disconnect the water connections from the quick release connections plus the used water recycling hose from the connection.

• On the right hand side, disconnect the camera cable and the water hose for the high pressure pump*

• Lower the hopper.

• Relieve the hydraulic system from pressure and stop the sweeper. On the rear of the vehicle, disconnect all the hydraulic hose quick release connections.

• Disconnect the electrical connections and connect the dummy connector onto the left hand side electrical socket.



• Remove the safety pins from underneath the front ball joints.

• Start the vehicle and, using the vehicle tipping cylinder, raise the sweeper unit as high as the locking pins for the tipping cylinder can be removed.

• Remove the locking pins for the tipping cylinder.

• Completely lower the sweeper unit.

• Remove the safety pins from the rear ball joints.

• Insert the support feet.

• Wind up the 4 sweeper unit support feet to place the sweeper unit in a position, that ensures driving the vehicle from underneath without touching the sweeper unit.

• Ensure, that the vehicle tipping cylinder is released from the receptacle on the sweeper unit.

• Ensure all connections to the vehicle being disconnected and all the hydraulic hoses, pipes and cables being placed correct and do not embarrass the vehicle's removal.

• Start the vehicle.

• Carefully drive the vehicle away from underneath the sweeper unit, that is supported by the support feet.

• Replace the wheel chocks into the original holders on the rear of the wheel. Note: When uncoupling the connections, check, if any markings have become illegible, or have been lost; renew the markings, if necessary. Protect the disconnected hydraulic couplings using dust covers. Any connectors, that are damaged, or leaking, have to be replaced immediately. Ensure, that the sweeper unit is stored on a plane and solid surface, and protected from freezing conditions.



Sweeping Operation

! CAUTION ! Sweepers, which are not roadworthy and could malfunction, should not be put into operation!

The following items should be controlled each time before starting:

• The sweeper unit is mounted and secured correctly on the ball joints.

• The correct mounting of the sweeping and suction gear

• The proper condition of all pipes, hoses, cables and connections (leakages, or rub-marks).

• Water level in the spray-water tank

• Adjustment of the sweeping and suction unit - swing-out width of the disk brush (overlap disk brush-suction hood) - height adjustment of the suction hood - support wheels and roller are free to rotate and the support wheels steerable

- Wear of the brushes, suction hose, rubber strips and rubber aprons Note: Before commencing sweeping, ensure the discharge flap is closed and correctly locked! Before starting the sweeping, please release the safety catch on the disc brushes (only with hydraulic load pressure)!



Controls M29 Chassis

Switch Description

1 Vehicle hydraulic switch 2 Vehicle motor speed and driving mode setting A Suction Fan ON /OFF B Disk Brush ON /OFF C Volume Regulator D Volume Display



Operating Panel (with options)

Switch symbols always have the same function on right, or left-hand steered chassis.

Note: The fuses for the sweeper unit are located either in the switch box above the passenger seat, or on the front side of the control panel.



Joystick

Note 1: When the disk brushes are fitted by means of hydraulic cylinders (electrical brush load pressure), the brushes are raised and lowered together with the sweeping unit. Note 2: Touch the button for a short time only to lower the sweeping unit, otherwise the unit will be lowered under pressure and not depressurised.



Sweeping

! Caution ! Before commencing sweeping, observe all previously specified safety information.

Filling the Spraying Water Tank 1. Drive the sweeper to a hydrant with a C-coupling connection. 2. Tip the hopper to reach the items in the storage basket. 3. Switch the vehicle off. 4. Remove the blank cover from the hydrant, open the hydrant for a short time

to wash any accumulated dirt away, not to enter the water tank. 5. Remove the blank cover from the water inlet port on the rear of the sweeper

unit. 6. Place the water filter* on the hydrant connection and connect the water filling

hose to the water inlet port and water filter. 7. Open the hydrant valve. 8. Check the filling process on the water level gauge. 9. Fill with water, until water leaks out of the overflow of the water tank. Then

immediately close the hydrant.

10. Disconnect the water filling hose from the water filter first, then from the water inlet port; roll up and store the hose in the storage basket.

11. Disconnect the water filter* from the hydrant, then reconnect the filter in the reverse direction and rinse the filter for a short time by opening the hydrant.

12. Disconnect the water filter*. 13. Replace the items in the storage basket. 14. Reattach all blank covers. 15. Switch the vehicle on. 16. Lower the hopper.



Starting the Sweeping Operation

Please read the vehicles manual for all the required settings, that are needed to drive and operate the vehicle.

Normal Disk Brush Operation

The following procedure has to be complied, if the normal disk brush sweeping unit is used.

1. Drive the vehicle to the working site. 2. Stop the engine. 3. If the electrical brush load option is fitted, remove the transport locks, that hold

the disk brushes in the raised position. 4. Start the vehicle engine (see manual supplied by the vehicle manufacturer). 5. Switch the vehicle into the slow working mode (Turtle mode) 6. Switch the rotating beacon light on, using the switch on the operating panel. 7. Switch the vehicle hydraulic on, using switch 1 8. Use the switches T2 to adjust the required vehicle motor speed (1,800 – 2,200

rpm), and to select it, if the vehicle has to be controlled, using either the joystick, or the foot pedal. (see manual supplied by the vehicle manufacturer).

9. Start the suction fan hydraulic by pressing the button A. 10. Press the button again, until the display is green, then use the regulator C to

adjust the oil volume for the suction fan speed. Adjust the oil volume to max. 60 l/min.



11. Start the disk brush hydraulic by pressing button B. 12. Press the button again, until the display is green, then use the regulator C to

adjust the brush speed. 13. The disk brushes are swivelled inwards and outwards using the buttons on the

joystick. 14. Switch the spray water nozzles for the suction hood on, using the switch on the

operating panel. If any spray nozzles are activated, the water pump is automatically started. Note: The spray nozzles on the suction hood should always be switched on, to ensure, that the suction tube will not be blocked. (Exception by heavy rain fall, or very wet surface)

15. Switch the spray water nozzles for the disk brushes on, using the switch on the operating panel.

16. Lower the sweeping and suction unit by pressing the button on the joystick shortly. If the button is pressed too long, the sweeping and suction unit is pressed downwards and not in the floating mode.

17. Release the hand brake. The vehicle can now be driven, using either the joystick, or the foot pedal. (vide manual supplied by vehicle manufacturer)

18. To ensure satisfactory sweeping, select the driving speed as required. The driving speed during sweeping depends on the local conditions, the quantity of debris on the road surface and the prevailing traffic conditions Caution: The sweeping gears have to be lifted under all circumstances, while driving over very uneven road surfaces and kerbstones!

General Information for Sweeping • Always watch the disk brushes while sweeping. The disk brushes should only

touch the kerbstones lightly while sweeping (otherwise heavy wear of the brushes and risk of damage to the brush suspension system).

• The swivelling width of the brushes is regulated by adjusting the stop screws behind the swivelling bracket.



• The brush rotation speed is adjusted using the button B and the control regulator C in the cab. Excessive speed increases brush wear and can push the debris beyond the operating area of the suction hood. The speed should be adjusted by the way, that the debris is swept in front of the suction hood, without leaving a strip-like sweep pattern behind the brush (insufficient speed causes strip-like sweeping patterns!)

• Brush load pressure is adjusted, using either the length of the tension spring, or the electrical pressure regulators 1 and 2 on the control panel. The brush load pressure should be increased only, if it is absolutely necessary, because a high load pressure greatly increases brush wear and causes unnecessary stress on the hydraulic unit.

• The bulky debris pick-up flap is located at the front of the suction hood and opens automatically, if large objects (tin cans, plastic bottles, larger stones) are in the sweepings. With the optional electrical bulky debris pick–up flap the distance between the pick-up flap and the ground is infinitely variable. The distance can be varied by using an electrical motor, that is controlled from the cab, using the switch on the operating panel.

Note: The distance between the ground and the flap should be kept as small as possible, as the suction efficiency is greatly diminished, if the distance is too large! • When enough water has been sucked into the hopper, the used water recycling

system can be activated by pressing the switch on the operating panel. • When sweeping at dawn, dusk, or at night, the spotlights* for lighting the

sweeping area can be turned on (switch on the instrument board). • Do not sweep up very large debris, such as boards, large branches, wires etc.;

those debris can be thrown manually inside the hopper through the side observation flaps.

• Avoid sweeping over large obstacles on the sweeping surface in any case, or lift the sweeping units to prevent damage to the brush suspension system.

• If the vehicle has to be reversed for particular reasons, the sweeping and suction gear HAS TO BE raised before reversing. To raise the sweeping and suction unit during the sweeping operation, stop the vehicle, press the button on the joystick until the sweeping and suction unit is completely raised.

• After stopping the vehicle, check the amount of waste in the hopper through the observation flap plus the water level in the water tank on the water level gauge regularly. Note: If the spray nozzles start to spray irregularly while sweeping, the water tank is empty. Immediately stop sweeping and switch the water pump off. Sweeping without water raises excessive dust, causes clogging of the suction hose and increases the wear of the suction fan. ! Caution ! When the maximum permissible axle load has been reached, immediately stop sweeping. The hopper has to be emptied before any further sweeping can be performed.



Light Weed Brush instead of Right Disc Brush

Mount the anti-fling protector and turn it towards the center of the vehicle Adjust the position and tight the locking grips. The anti-fling protector should be

positioned approx. 20 mm above the street surface and 100 mm away from the brush when the suction unit is lowered.

The left hand disc brush is fitted with a speed regulator to adjust the brush speed. The weed brush (right hand brush) should rotate approx. 1/3 turn faster, than the left brush.



Swivelling Front Brush Operation When the optional swivelling front brush is fitted, the normal disk brushes are smaller and fixed in position and cannot be swivelled. Before starting the sweeping operation, remove the transport safety bolt from the swivelling front brush arm and place it in the holder.

1. Start the vehicle engine (see manual, supplied by the vehicle manufacturer). 2. Switch the rotating flashing beacon on, using the switch on the operating panel. 3. Change the vehicle into the slow working mode (Turtle mode) 4. Switch the vehicle hydraulic on, using switch 1 5. Use the switches 2 to adjust and select the required vehicle motor speed (1,800

–2,200 pm), if the vehicle has to be controlled, using the joystick, or the foot pedal. (see manual supplied by the vehicle manufacturer).

6. Start the suction fan hydraulic by pressing button A. 7. Press the button again, until the display turns green, then use the regulator C to

adjust the oil volume for the suction fan speed to max. 60 l/min. 8. Start the disk brush hydraulic by pressing button B. 9. Press the button again to turn the display green, then use the regulator C to

adjust the brush speed. 10. Power up the spray water nozzles on the suction hood, using the switch on the

operating panel. As soon as any spray nozzles are activated, the water pump is automatically started. Note: The spray nozzles on the suction hood should always be switched on to ensure the suction tube not to be blocked. (Exception while heavy rain, or very wet surface)

11. Switch the spray water nozzles, fitted to the disk brushes, on, using the switch on the operating panel.

12. Lower the sweeping and suction unit by pressing the button on the joystick shortly. If the button is pressed too long, the sweeping and suction unit will be pressed downwards.

13. Switch the front brush on and choose the required rotation direction, using the switches on the operating panel.



14. Lower the front brush by pressing the required button on the joystick.

15. Switch on the spray water for the front brush, using the switch on the operating

panel. 16. The front brush is swivelled inwards plus outwards, and tilted, using the buttons

on the joystick. (The disk brushes are fixed together with the front brushes and cannot be adjusted using the joystick.)

17. Release the hand brake to drive the vehicle, using either the joystick, or the foot

pedal. (see manual supplied by vehicle manufacturer) 18. To ensure satisfactory sweeping, select the driving speed as required. The

driving speed while sweeping depends on the local conditions, the quantity of debris on the road surface and the prevailing traffic conditions.

19. Caution: The sweeping gears have to be lifted under all circumstances, when driving over very uneven road surfaces and kerbstones!

! Caution ! After sweeping and before changing the vehicle into the normal driving mode, the front mounted brush has to be swivelled until it is completely retracted and the transport safety bolt inserted!



Heavy Duty Weed Brush Operation When a heavy duty weed front brush is fitted, the normal disk brushes are smaller and fixed in position. They cannot be swivelled and the sweeping side for the heavy duty weed brush cannot be changed during the sweeping operation.

• Select the required side, that has to be swept, by lowering the brush and switch the brush on in the required rotation direction for a short time. The brush then swivels to the required side. Switch the brush off and raise the brush arm until the locking blot is engaged. • Before the brush is lowered again, insert the brush locking plate under the locking blot and insert the locking pin. This brush locking plate is used to stop any unrequired sidewards movement of the brush.

• Mount the anti-fling protector and turn it towards the center of the vehicle • Adjust the position and tight the locking grips. The anti-fling protector should

be positioned approx. 20 mm over the street surface and 100 mm away from the brush, when the suction unit is lowered.



The operating procedure is the same as for the optional front brush. The brush speed is controlled, using the regulator in the driver´s cab and with an additional mechanical brush speed regulator*, which is fitted on the sweeping unit. This regulator is used to give special settings for the heavy duty brush, to obtain a better sweeping result by using a higher rotation speed.



Concluding the Sweeping Operation When the sweeping operation has been completed 1. Stop the vehicle and apply the hand brake. 2. Completely retract the swivelling front brush, if fitted, using the buttons on the

joystick. 3. Raise the swivelling front brush, using the button on the joystick. 4. Press the switch on the operating panel to stop the front brush. 5. Press the switch on the operating panel to stop the spraying nozzles on the

front brush. 6. Press the button B to stop the brush drive system. 7. Press the switch on the operating panel to stop the used water recycling

system, if started. 8. Press the switch on the operating panel to stop the spray water for the disk

brushes 9. Press the switch on the operating panel to stop the spray water for the

suction hood and switch the water pump off. 10. After stopping the sweeping operation, the suction fan should be kept running

for approx. 10 seconds to ingest the debris, that remains in the suction hood and suction hose. Then the suction fan can be stopped by pressing and holding button A and turning down regulator C, until the oil volume is 0.

11. Release button A 12. Press and hold the button on the joystick, to raise the sweeping and suction

unit fully. 13. When the sweeping and suction unit is raised fully, release the button. 14. Return the vehicle motor to idle running speed, using switch 2 15. Switch the vehicle hydraulic off, using switch 1. 16. Switch the rotating beacon off, using the switch on the operating panel. 17. Return the vehicle to normal driving mode (Rabbit mode) (see manual

supplied by the vehicle manufacturer). ! Caution !

Before the vehicle is driven in the normal driving mode, the front mounted brush has to be retracted and the sweeping plus suction unit raised completely from the road surface! If the front mounted brush is fitted, ensure the transport safety bolt being inserted, before the vehicle is driven. Insert the transport locks for the disk brushes.

The vehicle can be driven to the next working site now, or to the dumping site, if the hopper is stuffed.



Emptying the Hopper Attention: The original vehicle tipping cylinder must not be used for tipping the hopper. 1. Drive the sweeper to the intended dumping site; stop the vehicle on level

ground. ! Attention ! Ensure the dumping position being free from electrical cables, or any other obstacles, that could be touched, when the hopper is raised. Keep a safety distance of at least 2 m to any electrical cables!

2. Actuate the hand brake, keep the vehicle engine running. 3. Switch the vehicle hydraulic system on, using switch 1

! Attention ! Before opening the discharge flap lock, ensure no person being within the swing-out area of the discharge flap! No person might be present near the discharge flap – danger due to water and falling debris escaping at the sides.

4. Open the operating panel, press the switch for exchanging between tipping and discharge flap lock to the position for discharge flap locking. The flap symbol on the switch is illuminated.

5. Fully open the discharge flap lock by pressing and holding the switch on the vehicle middle console (hold for at least 5 seconds.).



6. When the discharge flap is fully opened, switch the exchange button on the

operating panel to the tipping position.

7. The hopper is tipped, using the same switch on the middle console. While the

hopper is being tipped, the discharge flap is automatically opened by the gas spring cylinders.

! Attention ! The hopper, whether partly or wholly filled, may be tipped only, after the discharge flap lock has been opened! ! Attention ! Prior to actuating the tipping switch, ensure tno person standing behind the vehicle, or being endangered in any other way, when the hopper is tipped! ! Attention ! Do not drive the vehicle with the hopper tipped! Exception, only very slowly (max. 1 km/h and at a short distance)



6. When the hopper is in the completely raised position, insert the safety support bar.

7. After the hopper has been emptied, the debris, remaining in the hopper, can be loosened, using the supplied scraper. This is mounted on the left hand side next to the suction fan.

8. Disconnect quick release connection front-side (for the suction hood water

hose 11) from the water supply system.

9. Connect the water spray gun to the quick release connection, or to the quick

release connection at the rear of the vehicle (if fitted) These connectors are internally connected.



10. Turn the water pump on, using the switch for suction hood nozzles on the

operating panel in the cab. 11. Clean the hopper, using the water jet from the spray gun. Above all,

Clean the filter plates on the upper left and right hand side of the hopper, as well as the rubber seal and the sealing surfaces of the discharge flap, thoroughly.

12. Ensure the filter screens at the rear of the hopper for the used water

recycling system and the used water drainage being cleaned too. Note: The filter plates can be tipped to facilitate cleaning. Remove the front securing pin to tip the filter plate. After cleaning, raise and secure the filter plates again.

13. After cleaning, immediately turn the water pump off, using the switch on the operating panel Note: If the water pump is kept running after the cleaning procedure, the water pump will be damaged due to overheating.

14. Disconnect the water spray gun from the quick release connection. Replace the water spray gun into the storage basket.

15. Reconnect the suction hood water hose to the quick release connection on the water supply system.

16. Before lowering the hopper, remove the safety support bar; it is possible, that the hopper has to be raised a little to remove the safety support bar.

17. Lower the hopper by pressing the switch on the middle console, until the hopper is completely lowered and rests on the frame.



! Caution ! Before and while the hopper is being lowered, ensure no persons being endangered by the lowering procedure! (check by using both rear-view mirrors alternately)

18. Carefully close the discharge flap by hand. ! Caution ! Keep hands away from the discharge flap opening When the discharge flap is being closed, there is a risk of injury, if the hand gets between discharge flap and hopper.

19. When the discharge flap is fully closed, press the exchange switch on the operating panel. Then close the flap lock, using the switch on the middle console.

Working with the Hand Suction Hose* Use the following instructions to work with the rear mounted hand suction hose: ! Caution ! Always wear ear protection when working with the hand suction hose! Stop the vehicle, engage the hand brake and keep the vehicle engine running. 1. Switch the vehicle hydraulic system on using switch 1 2. Switch the rotating flashing beacon on using switch on the operating panel. 3. Raise the hopper using exchange switch on the operating panel and the

switch on the middle console. 4. Insert the supplied shut off plate between the suction hose and the hopper. 5. Disconnect quick release connection for the suction hood water hose from

the water supply system.

6. At the rear of the hopper, loosen the knob locking screw and completely pull out the shut off plate to open the suction opening for the hand suction hose. Tighten the knob locking screw.

7. Connect the wander hose water hose to the quick connection at the rear of the vehicle.





8. Completely lower the hopper. 9. Unlock the locking system that holds the hand suction hose system on the

hopper.

10. Remove the hand suction hose with the suction tube from the holding device

on the hopper. 11. If a swinging boom is fitted, pull the boom down using the grip and remove

the boom from the holder.

12. Switch the suction fan on by pressing the button A 13. Use regulator C to increase the suction fan speed until the required suction

fan speed is obtained. 14. Switch the water pump and water to the hand suction hose spraying nozzle

on using the switch for water suction hood on the operating panel. 15. Perform the suction operation with the wander hose. Note: When working with the wander hose, ensure that air is always drawn in through the air inlet of the suction tube. If the suction tube is blocked and no air can be drawn in, the suction effect is stopped.

! Caution ! When working with the hand suction hose, never reach into the suction tube, arm bands, watches, gloves etc. could be sucked in. When working with the wander hose, ensure that the hose boom cannot contact any electrical cables and does not damage street lamps or other objects within the movement range of the boom.



When the suction operation has been performed, use the following procedure to return to normal sweeping mode: 1. Switch the water to the hand suction hose spray nozzle and the water pump

off using switch on the operating panel. 2. Press and hold button A and turn regulator C down to reduce the suction fan

speed to 0. 3. Switch the suction fan off by pressing the button A. 4. Replace the boom into the holder. 5. Replace the wander hose into the holding device on the hopper and lock it

into place. 6. Disconnect quick release connection for the suction hose water hose from the

connection at the rear of the vehicle. 7. Close the connection for the hand suction hose, by pressing the shut-off plate

fully in and tighten the knob screw. Note: The connection for the wander hose must be fully closed using the shut off plate so that no air is sucked in over this opening during the normal sweeping operation. If this opening is not fully closed, the suction efficiency during sweeping is greatly diminished.

8. Raise the hopper. 9. Reconnect the suction hood water hose to the quick release connection on

the water supply system. 10. Remove the shut-off plate between the suction hose and the hopper. 11. Completely lower the hopper. 12. Turn the rotating flashing beacon off using the switch on the operating panel. 13. Switch the vehicle hydraulic system off using switch 1.



Used Water Recycling System The used water recycling system allows the sucked up used spray water, in the hopper, to be used again for the suction hose to reduce the amount of dust produced during the sweeping operation and to ensure that no dirt deposits are built on the sides of the suction hose. Note: To immediately use the used water recycling system when sweeping, approx. 100l of water should be filled into the hopper through the connection on the discharge flap.

• Start the normal sweeping operation, as previously described. • Open the electric ball cock valve using the switch on the operating panel.

• Visually check that the used water can be seen flowing over the hose to

the suction hood. • Perform the sweeping operation. • When the vehicle is stopped, always close the ball cock valve using switch

on the operating panel to ensure that the used water system is switched off when the vehicle is not sweeping.



High Pressure Washing System*

1* The operation of the high pressure washing system should be only performed by trained personnel.

2* The high pressure spray pistol should not be aimed at persons or any parts

that are carrying electrical current.

3* Rubber sealing etc. should not be cleaned using the high pressure wash system.

4* Do not reach into the high pressure water jet

5* Do not using the high pressure pump without water! 1. Before using the high pressure wash system, the water tank must be filled and the

supply hose for the pump must be connected.





2. Open the air bled ball cock on the pump inlet port and leave open until no more air

comes out and then close the ball cock.

3. On the sweeping and suction unit, turn the manual 3 way ball cock valve to the high pressure wash system position.



4. Start the vehicle and then press switch 1 to start the hydraulic system. 5. Start the brush drive system by pressing button B and then use regulator C to set

the oil volume to max. 35 l/min. 6. Remove the spray pistol from the holder and pull the hose until the required length is

obtained and the hose roller is locked at the required length.

7. Start the spray operation. NOTE: The spray pressure is pre-set and cannot be altered. Please refer to the supplied maintenance instruction for the maintenance procedures for the hose roller and high pressure pump.



MAINTENANCE

The following sections specify the service and adjustment measures required to ensure trouble-free operation of the sweeper. All screwed connection should be checked for tightness after the first 50 working hours and when required retightened. Caution: Do not directly spray any control motors and solenoid valves with high pressure sprays, these parts may be damaged through water penetration.

Chassis and Engine

All service and adjustment procedures on the chassis must be carried out according to the operating instructions supplied by the vehicle manufacturer. ! Caution ! Disconnect the terminals of the starter batteries before carrying out electric welding operations on the chassis or sweeper! Defective fuses in the electric system should only be replaced after the electrical system has been repaired or inspected.

Tipping the Sweeper Unit for Vehicle Maintenance To allow that the vehicle can be serviced without the sweeper unit being demounted, the sweeper unit can be tipped using the vehicle tipping cylinder.

Before the sweeper unit is tipped, the hopper must be fully lowered!

The sweeper unit MUST NOT be tipped sideways.

At the rear of the vehicle, disconnect all the hydraulic connections, these could be damaged by the frame work when the sweeper unit is tipped.



On the vehicle left and right hand side, disconnect all the water connections and the rear view camera cable when fitted.

Remove on the left and right hand side of the vehicle the locks from under the

front ball joints.

Start the vehicle engine and press the switch 1 to start the hydraulic system. Use the vehicle tipping cylinder switch to raise the sweeper unit.



On the left hand side of the vehicle, swing the safety support down and insert the safety support under the sweeper unit.

When the maintenance work is completed, remove the safety support bar and swing it up so that it locked up under the sweeper unit.

Turn the ignition key to the ignition position (the vehicle must not be started) and

press the vehicle tipping switch to lower sweeper unit.

When the sweeper unit is completely lower, replace the locks under the front ball joints.

Reconnect all the water connections on the left and right hand side and the rear view camera when fitted.

Reconnect all the hydraulic connections at the rear of the vehicle.



Hopper

Baffle Plate The baffle plate is fitted above the suction air inlet connection piece in the hopper and must be cleaned after each dumping and also checked to ensure that the rubber lining is intact. Note: If the rubber lining is damaged or missing, the baffle plate can be destroyed within a short time! A damaged baffle plate can no longer protect the hopper roof from damage! A worn baffle plate must be immediately replaced!

Filter Screens The filter screens that are fitted on the left and right hand side of the hopper roof must be cleaned after each dumping. Blocked or partly blocked filter screens reduces the suction power Note: The filter plates can be lowered to facilitate cleaning. After cleaning, raise and secure the filter plates.

Air Inlet Ducts The air inlet ducts in the hopper, lead from the filter screens to the suction fan connection, these must be cleaned weekly from any deposits. Open the observation flaps on the sides of the hopper and lower the filter screens. Wash the air inlet ducts using a water spray.



Safety Support Bar Check that the safety bar is functioning correctly each time when the hopper is tipped.

Spraying Water System

Parking by Freezing Temperatures Prior to parking the vehicle outside by freezing temperatures, the water system must be completely emptied and filled with a commercial antifreeze solution. 1. Open the drain ball cock valve on the right hand side underside of the water

tank and completely drain the water out of the water tank.

2. Switch the water pump on and open all the solenoid valves for all the spray

nozzles using the switches on the operating panel. 3. Keep the pump running until no more is sprayed out of the nozzles (approx. 1

min.) 4. Switch the water pump off and switch the solenoid valves off.



5. Unscrew the filter case from the water filter and allow the water to drain out of the filter.

6. Replace the filter case on the water filter. 7. Close the drain ball cock valve.

Filling with Antifreeze Solution When the water system is empty, fill over the normal filling connection on

the water tank a commercial antifreeze solution into the water tank. (ensure that the mixing ratio of the antifreeze solution and water is appropriate for the freezing temperatures)

Switch the water pump and solenoid valves on so that the solution is sprayed out of the spraying nozzles.

When the solution is sprayed out of the nozzles, switch the pump and solenoid valves off.

If a high pressure washing pump is fitted, the pumps and hose must be also filled with the antifreeze solution. Switch the high pressure washing pump on and spray until the system is completely filled with the antifreeze solution.

Water Pump The electrically driven water pump is designed that it can be used in the dry condition without damage. The spray water system is fitted with a separate fixed set overpressure regulator.



Water Filter The water filter must be cleaned weekly. If necessary, e.g. if the water is very dirty, the filter may have to be checked daily: 1. Close the water inlet to the filter by pressing the red locking cap on the water

filter in 2. Turn the red locking cap clockwise and pull the red locking cap out of the filter

housing. 3. Unscrew the front cover from the filter housing.

4. Remove the filter element from the filter housing. 5. Open the drain ball cock valve on the water tank and wash the filter. 6. Replace the filter element into the housing 7. Screw the front cover onto the filter housing. 8. Insert the red locking cap into the filter housing. 9. Press the red locking cap fully in and turn the cap anticlockwise to open the

inlet to the filter.

The sweeping unit cannot be used by freezing conditions and must be parked so that it is protected against freezing, Exception is when the complete spraying water system is filled with antifreeze solution.



Cleaning Water Solenoid Valves When water drops out of the nozzle when the solenoid valves are switched off, the solenoid valve is either defect or dirty.

Disconnect the electrical connector from the solenoid valve. Remove the nut that hold the magnet on to the valve. Remove the magnet from the valve. Unscrew the 4 screws that hold upper part on the valve body. Carefully remove the upper part from the body, take care that the plunger

does not fall out. Carefully remove the membrane and clean it. Check the membrane for

damage and that the small control hole in the membrane is not blocked. Clean the sealing surfaces of the body. Check that the plunger easily move in the upper part. Attention: Do not

lose the rear spring. Replace the membrane and screw the upper part on to the body. Spray the shaft on the upper part with commercial contact spray Replace the magnet. Spray the contacts in the electrical connector with contact spray and

replace the electrical connector. If the membrane is damaged or the plunger does not move easily, the valve must be exchanged.



Suction Fan

! Caution ! Maintenance and repairs on the suction fan should be only performed when the fan impeller has been turned off and is stationary. Before carrying out maintenance or repairs on the suction fan, remove the vehicle’s ignition key and keep it in a safe place, inaccessible for other people.

Cleaning The suction fan and the suction duct of the suction fan must be cleaned weekly: 1. Open the discharge flap. 2. Lower the filter screens by removing the ring split pins and lower the filter

screens by hand. The filter screens hang on chains.

3. Open the observation flaps on the side of the hopper and use a strong water jet to wash the filter screens, air suction duct and the suction inlet to the suction fan.

4. After cleaning, raise the filter screens and lock them into place with the ring split pins.

5. Tip the hopper and insert the safety support bar. 6. Start the suction fan with a very slow speed. 7. Using a strong water jet, wash the suction fan by spraying into the suction fan

inlet opening. Attention: The dirty water is blown out from the suction fan exhaust outlet.



8. When the suction fan is cleaned, stop spraying water into the suction fan. 9. Allow the suction fan running for approx. 1 min so that the water in the suction

fan housing is blown out. Any remaining in the suction fan is automatically drained through a drainage hole at the bottom of the suction fan housing.

10. Switch the suction fan off and remove the vehicle ignition key and wait until the suction fan has stopped rotating.

11. Open the maintenance flap on the side of the suction fan housing. Then

carefully turn the fan by hand and check for damage and dirt on the fan.

Note: Hard-packed layers of dirt on a soiled impeller as well as worn parts of the fan may become loose due to the generated centrifugal force while operating the sweeper and this can cause the suction fan to be out of balance and this can damage the motor bearings of the hydraulic drive.



12. Clean also the exhaust duct. 13. After cleaning and the visual inspection, run the suction fan for a short time. 14. Replace the maintenance flap on the suction fan housing. 15. Lower the hopper and close the discharge flap. 16. Lock the discharge flap.

Fan Impeller Bearing The fan impeller bearings are integrated in the hydraulic drive motor and are maintenance-free.

Suction Fan Motor Screws After the first 30 working hours, the tightness of the 4 fixing screws for the suction fan hydraulic drive motor must be controlled and when required retightened.

The motor is fitted under the suction fan housing and can be accessed when the sweeper unit is tipped.



Used Water Circulation System Note: Filter screen at the rear of the hopper should be cleaned every time the hopper is emptied to prevent that the filter is blocked by dried dirt. 1. Unlock and open the discharge flap. 2. Open the flaps to 2 cleaning openings on the sides of the hopper. 3. Use switch on the operating panel to open the electric ball cock valve. 4. Thoroughly wash the used water collection area and the filter screen using a

water spray.

5. Tip the hopper so that the connections for the used water circulation system

can be accessed. 6. Wash the path way through the ball cock valve to remove any accumulated

dirt in the valve. 7. Wash through the hose for the used water system to the suction hood. Do

not use high pressure as the hose could be damaged.

8. Check that the sealing ring is clean and that it fits correctly on the ball cock.



Sweeping and Suction Unit

The correct adjustment and condition of the sweeping and suction unit is essential to ensure efficient and trouble-free performance. It is necessary that the sweeping and suction unit is checked every time before starting the sweeping procedure. Note: All checks and adjustments described below should be performed on a level surface to ensure the comparability to the specified values. While performing these checks, the hopper must be completely lowered and empty.

Basic Settings

Suction Hood • Rubber side sealing strips:

The side sealing strips should be positioned that they are slightly touching the ground at the rear and approx. 3 – 5 mm above ground at the front.

• Front bulky debris flap: • Rear rubber plate and roller behind suction hose:

The rear sealing plate and roller behind the suction hose are positioned so that they slightly touching the ground.

Disk Brushes The adjustment of the disk brushes is dependent on the prevailing local conditions and the type of debris. • Lateral Tilt:

The disk brush should be tilted slightly forward and outward, to ensure that the front bristles leave a crescent-like pattern of stripes on the road surface while sweeping. The bristles for the brushes should touch the ground in the area between 9.00 – 14.00.



• Overlap with the suction hood: The sweeping pattern from the swung-outwards disk brush should extend approx. 100 - 150 mm into the intake area of the suction hood width.

• Brush Load Pressure: The brush load pressure is the pressure with which the bristles contact the road surface. The brush load pressure is adjusted by either altering the length of the tension spring or the optional pressure regulators on the operating panel. The brush load pressure should only be increased if it is absolutely necessary, since a high download pressure greatly increases brush wear and causes unnecessary stress on the hydraulic unit

• The brush speed: The brush rotating speed is adjusted using the regulator for the oil volume in the cab (see manual supplied by the vehicle manufacturer). The speed should be so adjusted that the debris is easily swept in front of the suction hood without leaving any streaks of dirt. Excessive speed unnecessarily increases the wear of the brushes and road surface and may push the debris beyond the reach of the suction hood. Too low brush speed, leaves streaks of dirt.



Swivelling Front Brush When the optional swivelling front brush is fitted, the normal disk brushes are smaller and are fixed in position and cannot be swivelled. The swivelling front brush should touch the road surface for the left and right hand side by the same amount. The position of the brush is adjusted using the buttons on the joystick in the cab.

The brush speed is automatically regulated with the disk brushes using the regulator in the cab.

Adjustment Procedures If adjustments must be performed on the lowered sweeping and suction unit, ensure that the hydraulic system cannot be actuated as there is a high risk of injury if the unit is accidentally raised!

Suction Hood The rubber side sealing strips should be adjusted so that they are just above the ground at the rear and at the front max 3 – 5 mm above the surface. The sealing strips are fitted with slots so that the position can be adjusted as the rubber strip is worn. If the rubber seal strips are too low, the suction hood is forced backwards as the surface is swept and when the vehicle is steered the suction hood is forced to the side and the rubber seal strips are worn very quickly.

• Loosen the screws that lock the clamping strip in place

• Gently push the rubber sealing strip down until the bottom edge is just touching the ground (max 3mm above ground)

• Tighten the screws for the clamping strip



When the length of the slots in the rubber has been used, the rubber strip can be turned over and the used until this slot length is used. Check daily that the support wheels and rear roller are free to rotate and that the support wheels are steer able.

Bulky Debris Flap The bulky debris flap is automatically positioned so that is just touching the ground. With the electrical controlled bulky debris flap, the position of the flap is adjusted using the switch on the operating panel. The flap should always be closed when sweeping and only opened when a bulky object is swept up. When the bulky debris flap is opened, the suction effect is reduced. Support Wheels and Suction Hood Front The support wheels are used to support the suction hood and should be adjusted so that the floating arm is parallel to the sweeping surface. To adjust the position, lower the suction hood on an even surface and then loosen the locking nuts for the support wheel. Adjust the height of the wheels so that the top edge of the floating arm is approx. 450 mm above the ground. When the wheels are correctly positioned, use the 2 adjustment on the ball joints to adjust the height so that the rubber seal at the front of the suction hood is 3 - 5 mm above the surface.



Rear Rubber Plate and Roller. The rear rubber plate and roller behind the suction hood should be positioned so that they are just toughing the ground during the sweeping operation. If the rubber plate is too high the suction effect is reduced. The position of the rubber plate and roller is adjusted using the chain that supports the rear of the suction hood on the suction hood support. Lower the suction hood and then adjust the chain length so that the rear of the suction hood is just touching the ground.

Disk Brushes

! Caution ! Adjustments should be only performed after the brush drive has been switched off and the vehicle ignition key is removed and put in a safe place! • Lateral tilt:

Loosen the mounting bolt and the upper clamping bolt on the disk brush motor support and adjust the lateral tilt by swivelling the entire brush and motor support. When the correct position is obtained, tighten both nuts.

• Longitudinal tilt: The longitudinal tilt (forward tilt) of the brush is adjusted using a track rod. Loosen the clamping bolts on the track rod and adjust the length of the track rod, the longer the track rod the greater the forward tilt of the brush. When the correct position is obtained, tighten the clamping bolts.



Perform a test sweeping to check the adjustment; repeat the above instructions until the required values are obtained. (Ensure that the safety tips are always observed!) • Swivelling width:

The stop position for the maximum swivelling width is set using the outer stop screw at the rear brush-bearing bracket. Loosen the locking nut then adjust the length of the screw until the correct position is obtained, then tighten the locking nut.



• Changing the brush: Loosen the 3 fixing nuts on the holding plate, remove the worn brush and install the new brush. Re-tighten the fixing nuts.

Swivelling Front Brush Adjustments should be only performed after the brush drive has been switched off and the vehicle ignition key removed and put in a safe place! • Lateral tilt Front Brush

Loosen the mounting bolt and the upper clamping bolt on the disk brush motor support and adjust the lateral tilt by swivelling the entire brush and motor support. When the correct position is obtained, tighten both nuts. This position is normally set for the side that is mainly used either left or right or if both sides are used it is left central.

• Longitudinal tilt Front Brush: The longitudinal tilt (forward tilt) of the swivelling brush is adjusted using the button on the joystick in the cab.

• Brush Load Front Brush: The load pressure for the swivelling front brush is adjusted using the buttons on the joystick that raise and lower the front brush. The brush load pressure should only be increased if it is absolutely necessary, since a high download pressure greatly increases brush wear and causes unnecessary stress on the hydraulic unit

Perform a test sweeping to check the adjustment; repeat the above instructions until the required values are obtained. (Ensure that the safety tips are always observed!)



Hydraulic System

Safety Tips Maintenance or repair measures on the hydraulic system should only be

performed by qualified personnel! Before performing maintenance or repair measures on the hydraulic

system, ensure that appropriate drip pans and oil-binding material are available!

For safety reasons, screwed joints or connections should not be tightened as long as the system is under pressure!

Components or parts of the hydraulic systems, which are under pressure due to static loads, must be relieved of these loads before any maintenance or repairs are started!

Before performing maintenance or repair measures on the hydraulic system, switch the vehicle engine off, remove the ignition key and place it in a safe place!

When possible maintenance or repair measures on the hydraulic system should only be performed on oil-tight and oil-resistant surfaces. If this is not possible, place oil-tight drip pans underneath the machine in the service area. Mineral oil presents an environmental hazard!

Immediately bind any hydraulic oil spillages using oil-binding material! If the hydraulic system has been damaged and oil leaks out during the

sweeping procedure, immediately stop the sweeping procedure and inform the responsible authority (e.g. fire brigade)!

General Information Cleanliness is of the utmost importance while performing maintenance or repairs on the hydraulic system, since a contaminated system inevitably results in service failures and damage to the hydraulic components. Prior to loosening any screwed joints or connections in the hydraulic system, the service area has to be cleaned well. Do not use fibrous or crumbly materials (e.g. cotton waste) for cleaning. To avoid contamination and unnecessary oil leakages, immediately cover open hydraulic connections with dust covers. Immediately replace damaged hydraulic hose or pipe lines. Risk of oil leakages if the pipes or hoses break! When exchanging hydraulic component parts (hoses, pipes etc.), ensure that the components are approved for an operating pressure of at least 250 bar. When laying hoses and pipes, do not exceed the minimum permissible bending radius and avoid distortions. Screwed joints may only be tightened by the torques as specified by the joint manufacturer.



Electrical System

All the connectors between the vehicle and the sweeper unit (1 x front, 2 x rear) should be sprayed twice a year with commercial contact spray to prevent pin corrosion and possible error contacts.

A fuse for the camera monitor in the vehicle cabin is fitted in the cable loom behind the right hand seat.



TROUBLESHOOTING

! Caution ! Under all circumstances before performing repair measures, observe the safety tips specified in previous sections and in the maintenance instructions!

Sweeping and Suction Gear

Defect Cause Repair Poor suction efficiency Hand suction hose shut off plate

not closed or leaking. Suction hose is clogged Suction hose is damaged Filter plates are dirty Infiltrated air through sealing (discharge flap, suction hose, fan etc.) Suction Fan is dirty Insufficient Suction fan speed Suction fan inlet dirty, blocked Suction fan exhaust duct dirty, blocked Suction Fan hydraulic drive is defect Rubber sealing strips of the suction hood are not adjusted correctly

Close shut off plate, check seals for shut off plate. Clean the suction hose Replace the suction hose Clean the filter plates Replace damaged sealing Clean the Suction fan Increase the Suction fan speed Clean suction fan inlet Clean suction fan exhaust duct Check the hydraulic system Adjust the suction hood and the rubber sealing

Poor sweeping efficiency Worn brush Brush is not adjusted correctly Brush speed too low

Replace the brush Adjust the brush according to description Increase brush speed.

Debris is thrown onto the sweeping surface

Brush speed is too high Incorrect Brush setting (brush slopes too much outwards)

Decrease brush speed. Adjust the brush according to description

Dirt streaks remain between suction hood and brush

Disk brush not adjusted correctly Brushes too wide outwards Brush is worn – insufficient overlap of brush and suction hood

Adjust the brush according to description Replace the brush



Defect Cause Repair Lift function of the sweeping / suction unit not working correctly

Hydraulic system defect Hydraulic valve defect Hydraulic connector not correctly connected No electrical signal to Hydraulic Valve Bearings of Support arm stiff

Check the hydraulic system according to instructions of the vehicle manufacturer Exchange Hydraulic valve Check connectors Check electrical connectors and electrical system Grease bearings

Brushes do not rotate Only 1 brush is rotated at normal speed

Hydraulic system is defect Brush speed regulator set too low Hydraulic quick release connection not correctly connected. Hydraulic brush motor defect

Check the hydraulic system according to instructions of the vehicle manufacturer Increase brush speed Check hydraulic quick release connections Replace hydraulic brush motor

Excessive amount of dust while sweeping

Water solenoid valve is not open Spray nozzles are clogged Water filter is dirty Water tank is empty Water pump is defective Solenoid valve does not respond Electric drive of the water pump is defective Water hose not connected

Open the correct solenoid valve Clean the nozzles Clean the water filter Fill the water tank Check the water pump Check the electric system Check the electric system Connect water hose to quick release connections.



Hydraulic System

Defect Cause Repair Hydraulic system does not function trouble-free

Insufficient hydraulic oil in the hydraulic tank of the vehicle Hydraulic filter is very dirty Hydraulic unit is leaking Hydraulic pump or hydraulic motor is defective

Refill the hydraulic tank Replace the filter element Tighten the screwed joints, replace defective hoses or pipes Replace defective parts (customer service)

Hydraulic system makes excessive noise

Hydraulic oil level is too low Water or air in the hydraulic oil Suction pipe is leaking Hydraulic filter is dirty

Refill the tank Replace the hydraulic oil Tighten the screwed joints or replace the pipe Replace the filter element

Hydraulic oil temperature is too high

Hydraulic pump or hydraulic motors are dirty or defective Hydraulic oil level is too low Incorrect type hydraulic oil Pressure relief valve responds continually

Repair or replacement by customer service Refill the tank Replace the hydraulic oil according to the maintenance instructions See “hydraulic system does not function trouble-free“

Hydraulic Tipping cylinder for hopper does not work correctly

Solenoid valve not working correctly Hydraulic cylinder seal defect Hydraulic oil pressure too low Hydraulic quick release connection not correctly connected

Check or replace solenoid valve (customer service) Replace seal or exchange hydraulic cylinder Hydraulic pump or pressure relief valve defect (customer service) Connect quick release connection.



MAINTENANCE SCHEDULE

For the vehicle chassis, only the most important points are specified below. For these units, observe the separate manual supplied by the chassis manufacturer! After First 30 to 50 Working Hours • Check all the hydraulic connection for tightness and when required retighten. • Suction Fan – Check tightness of fixing screws for the suction fan hydraulic motor. Daily or every 10 Working hours: • Check the hydraulic system for leaks • Brush wear • Condition of the suction hood sealing • Condition of the baffle plate • Check the bulky debris flap for easy movement • Check that support wheels can easily rotate • After completion of sweeping tasks: clean the machine Weekly or every 35 Working hours: • Clean the Suction fan casing • Clean the air ducts in the hopper • Clean the water filter, check spray water nozzles • Check the condition of the suction hose Monthly or every 150 Working hours: • Condition and adjustment of the sweeping gears • Condition and adjustment of the suction hood • Lubricate with lithium soap grease: See lubrication plan Yearly or every 1,200 Working hours: • Spray the contact connectors for the hydraulic and water solenoid valves with contact

spray.

Check high pressure water pump according the original manual.





Frontbrush



LIST OF SPARE PARTS

The spare part numbers for the hydraulic, electrical and water components are listed on the corresponding circuit diagram. When ordering spare parts, to ensure that the correct spare parts are delivered, please always specify the machine type, construction year and serial number. These details are stamped on the TRILETY Machine type plate that is fitted to the machine.

Date post:	24-Mar-2021
Category:	Documents
Upload:	others
View:	6 times
Download:	0 times

Operating Manual - Trilety · 2020. 9. 9. · Suction Fan Unit The suction fan unit is mounted,...

Documents