HYDRAULIC BENCH GRINDER

1/9HYDRAULIC BENCH GRINDER

2008

INSTRUCTIONS

HHK 200-12

HHK 200-17

P

T

To enable putting DYNASET hydraulic bench grinder into operation only pressure- (P) and return (T) lines are

to be connected to the hydraulic system.

Ensure that the hydraulic fluid flow is sufficient to run the unit, i.e. at least the nominal flow must be available.

At the hydraulic flow less that demanded nominal rate the grinder runs at underspeed. If the hydraulic flow is so

excessive, that the automatic speed control valve is unable to handle it, the unit begins to hunt. In the latter case

the hydraulic flow is to be reduced either by replacing an existing hydraulic pump with a suitable one or using flow

limiter. DYNASET PRIORITY VALVE is recommended.

After having been connected to the hydraulic system, DYNASET hydraulic bench grinder is to be started by

directing the hydraulic flow to the unit�s pressure port by means of control valve - manual or solenoid. Even simple

ball valve or three-way valve can be used.

To ensure DYNASET�s proper operation, the hydraulic pressure must be set at least to the level, at which the

nominal power output is achieved (ref. to PARAMETERS). Lower pressure reduces output power. Maximum

hydraulic pressure is 210 bar (ref. to PARAMETERS). If the hydraulic system main pressure is higher, service

pressure relief valve must be used.

Ensure also that your machine�s hydraulic fluid cooling is working properly when DYNASET unit is in operation.

DYNASET HYDRAULIC GENERATORS ARE DESIGNED FOR EASY INTEGRATION INTO HYDRAULIC SYSTEM OF ANY

TYPE:

DYNASET hydraulic bench grinder works being integrated into an original hydraulic

system of a material handling machine.

Unit can be placed deliberately ensuring an easy access to the unit. Grinder should be

positioned on a horisontal surface. Additionally, return line must be connected to a

hydraulic oil tank in the shortest possible way in order to keep return oil pressure under

5 bar. It is possible to use DYNASET either as a plug-in grinder and connect hydraulic

power with quick couplings, or make a fixed installation on a carrier machine.

Ensure that the fi ltration capacity of a hydraulic system is sufficient.

2/9HYDRAULIC BENCH GRINDER

2008

DYNASET HYDRAULIC BENCH GRINDER IS A COMPACT UNIT , DESIGNED FOR BOTH MOBILE AND

WORKSHOP INSTALLATION. THE ONLY POWER SOURCE IS A HYDRAULIC SYSTEM TO PROVIDE GRINDER

WITH REQUIRED HYDRAULIC FLUID FLOW AT DEMANDED PRESSURE.

DYNASET hydraulic grinder is assembled on a robust steel frame and includes following components:

hydraulic motor

automatic rotation speed control valve

grinding wheel shaft with support flange and locking nut

adjustable grinding support

grinding wheel�s protective cover with an adjustable spark screen.

An automatic rotation speed control valve keeps unit's rotation speed constant when incoming hydraulic oil flow

can vary from nominal (= minimum demanded flow) up to value of 50% over the nominal.

CONSTRUCTION

CLASSIFICATION

DYNASET hydraulic bench grinder is designed and manufactured in conformity with the standard SFS 5349.

INSTALLATION

T

CFP

LS

LS valve

S

M

PT

DYNASET PV SAE 3/4 - 1 1/4 -XX lpm - 12/24 V priority valve includesfollowing components:

ALSO AVAILABLE for open centre hydraulic systems with variable displacement pump: PRIORITY VALVE PV C3C ¾ - 1 ¼ - 12/24 V.

DYNASET PRIORITY VALVE enables to operate your DYNASET-unit simultaneously with other hydraulic executors.

1.S a n d w i c h - m o u n t e d p r e s s u r ecompensa to r w i th SAE- f l angespecification;2.Solenoid valve 12/24V;3.Flow limiter;4.Pressure relief valve.

PV SAE priority valve is designed for theinstallation to main pressure line betweenSAE-flanges of main hydraulic pump. Pre-adjusted, independent from otherfunctions and priorised hydraulic flow forDYNASET-unit comes from the solenoidvalve.

S

M

PT

T

CF

PP

LS LS

A

B

PV SAE valve

The demanded hydraulic flow is to be ensured and controlled with a DYNASET PRESSURE COMPENSATED

PRIORITY VALVE.

The rest of hydraulic pump�s capacity is available for all otherfunctions. Furthermore, pump�s control works together withDYNASET PV SAE priority valve.

1. OPEN CENTRE HYDRAULIC SYSTEM WITH VARIABLE DIPLACEMENT PUMP

2. CLOSED CENTRE HYDRAULIC SYSTEM WITH VARIABLE DISPLACEMENT PUMP

The demanded hydraulic flow is to be ensured and controlled with a DYNASET PRESSURE

COMPENSATED LOAD SENSING (LS) VALVE.

DYNASET LS-valve includes following

components:

1.

Flow limiter;

2.

Solenoid valve 12/24V;

3.

Pressure relief valve;

4.

Optional shuttle valve.

DYNASET LOAD SENSING VALVES:

LSV 40, LSV 60, LSV 95 and LSV 150

LS-connection, pressure relief, max. hydraulic flow 40,

60, 95 ja 50 l/min respectively.

DYNASET FLOW LIMITERS to the pressure line:

VR 40 PK - 1/2, max. 35 l/min, with pressure compensation;

VR 95 PK - 3/4, max. 95 l/min, with pressure compensation.

ALSO AVAILABLE for closed centre hydraulic systems with variable displacement pump:

DYNASET SOLENOID VALVE to the pressure line for remote starting -

SV 70 NC - 1/2 - 12 / 24 V max 70 l/min with LS -connection;

SV 150 NC� 1 - 12 / 24 V max 150 l/min with LS -connection.

AUTOMATICFREQUENCY

CONTROL VALVE

AUTOMATICROTATION SPEEDCONTROL VALVE

3/9HYDRAULIC BENCH GRINDER

2008

INSTALLATION

In the first place the demanded oil flow is to be

ensured with the proper choice of a hydraulic pump.

In systems with redundant hydraulic flow an

installation with DYNASET PRIORITY VALVE is

recommended.

Installation with a standard pressure compensated

3-way valve should be avoided in order to close off

potential waving in hydraulic system.

ALSO AVAILABLE for hydraulic systems with

constant displacement pump:

DYNASET FREE CIRCULATION VALVE with

solenoid and pressure control, type VKV 90�3/4.

S

M

PT

AUTOMATICFREQUENCY

CONTROL VALVE

3. HYDRAULIC SYSTEM WITH CONSTANT DIPLACEMENT PUMP

1

Choose the graininess of grinding wheel according to your task.

2

Install the chosen grinding wheel onto the grinder:

- unscrew screws (pos. 15, 9 pcs.) and detach the protective cover (pos. 2) together with arched guard

and spark screen;

- unscrew the locking nut and remove flange from grinder�s shaft;

- put the grinding wheel onto the shaft, replace the flange and fix with the locking nut.

When tightening the locking

nut, the shaft is to be kept

unrotated with screwdriver as

shown on the above pictures.

ATTENTION !

Alternatively grinding wheels of 12 mm, 20 mm and 25 mm can be used. However their use is allowed only with

appropriate protective inserts attached to a grinding wheel�s cover.

GRINDING WHEEL PROTECTIVE INSERT

WIDTH, MM WIDTH, MM

25 8

20 12

12 12 + 8

4/9HYDRAULIC BENCH GRINDER

2008

INSTALLATION

PRIOR TO STARTING THE GRINDER

HYDRAULIC REQUIREMENTS GRINDING WHEEL HYDRAULIC PORTS WEIGHT

OIL FLOW OIL PRESSURE OD width mounting PRESSURE RETURNMODEL l/min bar hole

min max min max mm mm mm P T kg

HHK 200/3000-12 12 20 180 210 200 32 32 BSP 1/2" BSP 1/2" 12,4 *

HHK 200/3000-17 17 30 180 210 200 32 32 BSP 1/2" BSP 1/2" 12,4 *

* with the grinding wheel of 32 mm

1

Ensure that the grinder is properly connected to the hydraulic

system of your carrier machine and there are no oil leakages

in system.

2

Ensure that the unit is securely fixed onto steady base or

frame.

3

Start the engine of your carrier machine. Adjust the rpm to

the demanded level if necessary.

4

Start the grinder with a control valve.

5

Put the tool to be sharpened onto the grinding support and

re-sharpen it or make other machining.

2008

180

200

265

233

185

301

11

4 kpl.

51

5

Grinder's protective cover has a junction pipe (OD 51)

for an exhaust blower. If an exhauster is available,

grinder can be connected to the ventilation system in

order to keep the working area clean from grinding

dust.

3

Replace and fix the protective cover. Adjust the position of a spark screen.

4

Adjust and tighten the grinding support.

5/9HYDRAULIC BENCH GRINDER

OPERATION

PRIOR TO STARTING THE GRINDER

PT

11

9

8

10

6

1

7

15

2

512 13 4 3

12 1315

29

13

19

20

21

22

23

24

18

50

51

51.2

14

17

161560

55 56

2008 6/9HYDRAULIC BENCH GRINDER

No STOCK DESIGNATION DETAILS QUANTITY

NUMBER HHK...-12 HHK...-17

1 07051713 FRAME 1 12 07051708 GRINDSTONE�S COVER 1 13 07051712 ARCHED GUARD 1 14 07051733 SCREEN HOLDER 1 15 07051724 SPARK SCREEN 1 16 07051711 GRINDING SUPPORT 1 17 07051710 SPACER PLATE 1 18 07051705 SHAFT M20x1,5-45 1 19 07051704 SUPPORT FLANGE D88 1 110 07051703 BEARING FLANGE D88 1 111 85076660 LOCKING NUT DIN439-B M20x1,5 1 112 85004093 ALLEN SCREW M6x16 8.8 SSi 4 413 85011457 WASHER, wide 6,4x15-1,5 SSi 6 614 85009056 NUT M6 Nyloc 4 415 85004091 ALLEN SCREW M6x10 8.8 SSi 9 (12) 9 (12)16 85004190 ALLEN SCREW M12x70 8.8 SSi 1 117 85009060 NUT M12 Nyloc 1 118 07001767 RETURN PIPE ASSEMBLY D15x173x10 1 119 11001010 FLANGED FITTING 15 1 120 07031474 RPM VALVE BLOCK ASSEMBLY D3007 1 121 85000626 HEX SCREW M8x30 8.8 SSi 4 422 85011260 WASHER 8,4x17-1,6 4 423 85009058 NUT M8 Nyloc 4 424 17027050 HF PLUG R3/8 4 425 91081730 NAMEPLATE HHK200-12 1

NAMEPLATE HHK200-17 129 85004092 ALLEN SCREW M6x12 8.8 SSi 2 250 07001144 RPM CARTRIDGE 12 lpm 1

RPM CARTRIDGE 17 lpm 151 07001468-4,0L HYDRAULIC MOTOR 4.0 1

07001468-5,5L HYDRAULIC MOTOR 5.5 151.2 21048505 SHAFT SEAL, COMPLETE 17x30 1 1

LOCKING RING 30 1 1

55 SECURITY INSERT 12 MM OPTIONAL 1 156 SECURITY INSERT 8 MM OPTIONAL 1 160 ALLEN SCREW M6x20 8.8 SSi 3 3

ASSEMBLY

Wide range of standard hydraulic fluids can be used with the DYNASET hydraulic equipment.

Subject to the operating temperature, following mineral hydraulic oils are recommended:

ISO VG 32 for oil�s operation temperature up to 70 °C;

ISO VG 46 for oil�s operation temperature up to 80 °C;

ISO VG 68 for oil�s operation temperature up to 90 °C.

Synthetic and bio-oils can be used as well if their viscosity characteristics and lubricating efficiency are corresponding

to above mineral oils. Automatic transmission fluids and even engine oils can be used, provided that they are

allowed to be used in hydraulic system of your carrier machine.

Prior to use special hydraulic fluids a with DYNASET equipment, please be kindly requested to contact nearest

DYNASET representative for an advice.

HYDRAULIC FLUIDS

Hydraulic bench grinder is only allowed to be used when securely fixed onto robust base.

The grindstone's rotation speed is 3000 rpm. Never start the unit without protective cover !

Grinding support should be properly adjusted and fixed prior to starting the grinder. The spark screen must be

used as well to keep operator�s eyes uninjured.

TO AVOID INJURIES, WHICH MIGHT BE CAUSED BY GRINDING DUST AND SPARKS, ALWAYS WEAR

PROTECTIVE CLOTHING, GLOVES AND GOGGLES !

Never wear loose clothing that can get entangled in the working equipment.

The tightness of lids and covers as well as of all screw joints must be inspected on a regular basis, for instance

at least once a week or more frequently, if a grinder is exposed to a noticeable vibration.

The hydraulic system of a carrier machine may be pressurised up to 420 bar. Strictly follow all your local safety

instructions related to the high pressure hydraulics.

Operators and maintenance personnel must always comply with local safety regulations and precautions in order

to close out the possibility of damages and accidents.

TECHNICAL CONDITION OF YOUR MACHINERY AND EQUIPMENT MUST BE SUBJECTED TO CONSTANT

SURVEILLANCE. Hydraulic system of a carrier machine should be maintained according to the service program.

All couplings, valves and hoses of the system should be leak-proof and kept clean in order to follow their technical

condition.

Hydraulic leakages must be rectified immediately to avoid injuries caused by hot oil blowouts.

Prior to maintenance, detaching from a carrier or disassembling a DYNASET-unit, the hydraulic system of a

machine should be stopped and DYNASET�s hydraulic circuit depressurised.

When working with DYNASET hydraulic equipment, appropriate protective clothing, safety goggles and gloves

should be worn. Do not touch parts heated by hydraulic oil.

WHEN CARRYING OUT ANY SERVICE DISASSEMBLING OR REPAIR OF DYNASET HYDRAULIC UNIT

(AND/OR HYDRAULIC SYSTEM OF A CARRIER MACHINE), ABSOLUTE CLEANLINESS MUST BE MAINTAINED

TO ENSURE RELIABLE AND TROUBLE-FREE OPERATION OF YOUR EQUIPMENT.

Having carried out a maintenance or cleaning, NEVER LEAVE UNIT�s COVERS /SHIELDS/SCREENS UNREPLACED

AND UNSECURED ! Condition of any seal/gasket must be inspected and defective parts replaced.

All installation and service of hydraulic equipment must be performed by qualified and experienced personnel

only.

2008 7/9HYDRAULIC BENCH GRINDER

SAFETY

MANUFACTURER�S LIMITED WARRANTY

1. Warranty coverageAll hydraulic accessories manufactured byDYNASET OY are subject to the terms andconditions of this limited warranty. Products arewarranted to the original purchaser to be free fromdefects in materials or workmanship. Exclusionsfrom warranty are explained in item 8.

2. Beginning of warranty periodWarranty period begins from the delivery date ofthe product. Delivery is considered to be done onthe date when installation has been accomplishedor purchaser has taken the product in use. Productis considered as taken in use at the date whenDYNASET OY has delivered the product topurchaser, unless separately agreed otherwiseby written agreement.

3. Warranty periodWarranty period is twelve (12) months based onmaximum of 2000 hours usage during this timeperiod. In cases where the system is providedcomplete with certain special components (e.g.drive unit), those components are considered asa subject to their manufacturer�s warranty.

4. Warranty proceduresImmediately upon identifying a problem whichpurchaser believes to be a failure subject to theproduct�s limited warranty, purchaser must contactprimary to the seller of the product. Contact mustbe made as soon as possible, latest thirty (30)days after the problem was identified. Seller and/ormanufacturer technical staff determines the natureof the problem primarily by phone or e-mail.Purchaser commits to give necessary informationand to perform routine diagnostic procedures inorder to determine the nature of the problem andnecessary procedures.

5. Warranty repairsIf the product is found to be defective during thewarranty period, DYNASET OY will, at its option,either repair the product, author it to be repairedat its authorized workshop or exchange thedefective product. If the product must be repairedelsewhere than premises of DYNASET OY orauthorized workshop, all costs excluded from thiswarranty (traveling and waiting hours, dailyallowance, traveling expenses anduninstallation/reinstallation costs) will be chargedfrom the purchaser.

If the problem is not covered by this limitedwarranty, DYNASET OY has the right to chargepurchaser of troubleshooting and repairing.

6. Delivery terms of warranty repairIf the product is found possible to be defectiveunder this limited warranty and it needs to berepaired, DYNASET OY gives Warranty ReturnNumber (WRN). Items being returned must beshipped, at the purchaser�s cost, adequatelypacked for shipment, to the DYNASET OY or toother location authored by DYNASET OY.Shipment documents must contain:

- Purchaser�s name and contact information- Receipt of original purchase- WRN code- Problem description

7. Warranty of repaired productWarranty period of the product repaired under thislimited warranty continues to the end of originalwarranty period.

8. Exclusions from warrantyThis warranty shall not apply to:

a. Failures due to normal wear and tear, improperinstallation, misuse, abuse, negligence, purchaserselection of improper product to intended use, accident,improper filtration of hydraulic oil or intake water orlack of maintenance

b. Cost of maintenance, adjustments, installationor startup

c. Coating, hydraulic oil, quick couplings andinterconnection hoses (internal or external to systemassemblies)

d. Products altered or modified in a manner notauthorized by DYNASET OY in writing

e. Products which have been repaired duringwarranty period by others than DYNASET OY or itsauthorized workshop

f. Costs of any other damage or loss, whetherdirect, indirect, incidental, special or consequential,arising out of the use of, or the inability to use, theproduct

g. Telephone or other communications expenseh. Product that is used in exceptional conditions,considered to cause excessive wear and tear

i. Faults caused by nature phenomenon�s likeflood, thunder, etc.

© DYNASET OY, all rights reserved

2008 8/9HYDRAULIC BENCH GRINDER

EC DECLARATION OF CONFORMITY

We hereby declare that the below-reference product design, structure and ourmanufacture form fulfills relevant, fundamental safety and health requirements with the provisions in the Council Directive on mutual approximation of laws of the Member States on the safety of machines.

- Machine directive 2006/42/EC- Directive 97/23/EC European standards Pressure equipment.

Apply conformity standards:

- EN ISO 4413: EN ISO 4413:2010 Hydraulic fluid power - General rules and safetyrequirements for systems and their components.

If device has changed by someone other than at the hands of manufacturer or his permission, this declaration is not valid.

PRODUCT: HYDRAULIC BENCH GRINDER

ALL TYPE NUMBERS: HHKxxxxxxx-xxxxxxxx-xxxxxx-xxxxxx-xxxx

YLÖJÄRVI 15.10.2012 DYNASET Oy

Timo Nieminen R&D Manager

9/9HYDRAULIC BENCH GRINDER