1
MAX-E-PROTM
Centrifugal PoolPumps
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Owner’s Manual
24
L300
079A
- 080
4
2
Relax - you’ve bought an Onga ...Congratulations on your decision to purchase an Onga
product. Onga is one of the best known brands in its field,with a proud local and international reputation.
Onga is a brand for reliability, value for money and technologicalinnovation.You will find Onga product wherever people need to move water in 3broad markets covering:
Technologically advanced solutionsfor moving and treating water in theHome, Garden, Pool and Spa.
Innovative stock and crop watermanagement solutions for PrimaryIndustries.
Water movement products forBuilding Services, EmergencyServices and OriginalEquipment Manufacturers.
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NOTES:
3
1. Continual Product ImprovementWe employ the best engineers both in Australia andaround the world to develop new and better ways to takewater further.
2. Operational ExcellenceThere is only one standard that we set ourselves for bothproduct quality and the quality of our service. Thatstandard is excellence... to have no-one better than us atwhat we do... nothing short of that is acceptable. Ourcommitment to quality is reinforced with ourISO 9001:2000 accreditation.
3. A Fair PriceOnga products are neither the cheapest nor the mostexpensive in their field. Our products do, on the otherhand, always represent very good value for money - theyalways have and they always will.
4. Our Team of DealersThe hand picked authorised Onga dealer networkthroughout Australia and worldwide are second to none.We invest considerable time and resources training andsupporting them through our Onga Training Academy.
22
IMPORTANTPlease attach your sales invoice/docket here as proof of purchase shouldwarranty service be required.
Please do not return Warranty - Retain for your records.
Purchased From
Purchase Date Serial No Model No
4
IMPORTANT!This manual should be furnished to the end user of this pump. This manual must beread and understood before operation and followed during operation.
These instructions are a guide only. Users not familiar with swimming pool equipmentshould seek advice from people with experience in pool equipment installation.
Models:
Technical Data
Inlet ABS Barrel Union to suit 50mm I.D. PVC pipe
Outlet ABS Barrel Union to suit 50mm I.D. PVC pipe
Max. Pump Pressure 240 kPa
Max. Working Pressure 360 kPa
Water Temperature Range 5 – 450C (In line with Health AuthorityRegulations)
IP Rating IP55
Electrical Rating 240 Volt single phase are supplied as standardwith built in thermal overload protection and aredesigned to plug directly into a 10 amp (15 Amp forMP2201100) domestic power supply to localelectrical authority specifications. 415 Volt 3 phasemotors should be protected with therecommended contactor and thermal overloads inaccordance with local electrical authorityspecifications.
Optimal pH Range 7.2 - 7.8 (Guide Only)
Part Number Max-E-Pro Model Dura-Glas II Model Motor Type MP730100 3D (1 hp) 1 phase 5P4R6D 405070 MP930100 3E (1¼ hp) 1 phase 5P4R6E 405070
MP1100100 3F (1½ hp) 1 phase 5P4R6F 405072 MP1108100 3F3 (1½ hp) 3 phase 5P4R6F3 405078 MP1500100 3G (2 hp) 1 phase 5P4R6G 405072 MP1508100 3G3 (2 hp) 3 phase 5P4R6G3 405078 MP2201100 3H (3 hp) 1 phase 5P4R6H 405074 MP2208100 3H3 (3 hp) 3 phase 5P4R6H3 405078
21
Onga Product Warranty (Continued)
How to get service:In Australia please contact 1800 664 266 In New Zealand please contact 0800 664 269
Claims under this warranty must give evidence of date of purchase, model and serial number of theproduct and the claimants name, address and telephone number.
1) To obtain warranted service, you will be required to provide to either Onga state officeor recommended service agent:-a) the product;b) confirmation in writing specifying the nature of your claim;c) proof providing date of original purchase;d) full contact details including name and address;e) the serial number of the product if any.
2) The product is to be forwarded by the customer freight paid to an Authorised Onga serviceagent.Infield service by an authorised Onga Service Agent will incur a travel, removal & reinstalla-tion fee to adjudicate on warranty issues.Authorised warranty will be free of charge for the first 12 month period from date of the firstconsumer purchase.
3) Warranty service work will be denied or suspended, on equipment not readily accessible toservice personnel, that is products that are behind barriers, tiled or bricked in, installed inroofs or second story external walls including inaccessible power points.
4) Any service of any product which is found to be faulty due to abuse, fair wear & tear,misuse or improper installation will be charged to the owner at the service agentscurrent servicing hourly rate.
Limitation of implied warranties:THERE ARE NO WARRANTIES, EXPRESSED OR IMPLIED, WHICH EXTEND BEYOND THE DESCRIPTIONCONTAINED HEREIN INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR APARTICULAR PURPOSE.
Exclusion of damages:ONGA’S LIABILITY IS LIMITED TO THE COST OF REPAIR OR REPLACEMENT OF THE PRODUCT. ONGA SHALLNOT BE LIABLE FOR:1) DAMAGE TO OTHER PROPERTY CAUSED BY ANY DEFECTS IN THE PRODUCT, DAMAGES BASED
UPON INCONVENIENCE, LOSS OF USE OF THE PRODUCT, LOSS OF TIME, LOSS OF PROFITS, LOSSOF BUSINESS OPPORTUNITY, LOSS OF GOODWILL, INTERFERENCE OF BUSINESS RELATION-SHIPS, OR OTHER COMMERCIAL LOSS, EVEN IF ADVISED OF THE POSSIBILITY OF SUCHDAMAGE.
2) ANY OTHER DAMAGES, WHETHER INCIDENTAL, CONSEQUENTIAL OR OTHERWISE.3) ANY CLAIM AGAINST THE CUSTOMER BY ANY OTHER PARTY.
Effective law:This warranty gives you specific legal rights, and you may also have other rights which vary fromstate to state. Nothing in this warranty limits or restricts, or is intended to derogate from, any rightor remedy which the purchaser or ultimate user of the product may have pursuant to Australianstate and/or Australian federal consumer protection legislation, New Zealand Sale of Goods Act,Consumer Guarantees Act, Fair Trading Act or any other relevant and applicable New Zealandlegislation or authority and where necessary shall so be read and construed.
5
Installation
Incorrectly installed or testedequipment may fail, causing severeinjury or property damage.
Read and follow instructions in owner’s manual wheninstalling and operating equipment. Have a trained poolprofessional perform all pressure tests.
1. Do not connect system to a high pressure or citywater system.
2. Use equipment only in a pool or spa installation.3. Install pump with at least 2 hydraulically balanced
main drains equipped with correctly installed,screw-fastened, anti-entrapment certified coversaccording to local regulations.
3. Trapped air in system can cause explosion. Ensureall air is out of system before operating or testingequipment.
Before pressure testing, make the following safety checks:• Check all clamps, bolts, lids, and system accessories prior to testing.• Release all air in system before testing.• Tighten trap lid to 4.1 kg-m torque for testing.• Water pressure for test must be less than 172kPa (25 PSI).• Water temperature for test must be less than 35°C.• Limit test to 24 hours. After test, visually check system to be sure it
is ready for operation. Remove trap lid and retighten hand tight only.
Pressure Testing(Have a trained pool professional perform all pressure tests.)
Fire and burn hazard. Modern motors run at high tempera-tures. To reduce risk of fire, do not allow leaves, debris, orforeign matter to collect around the pump motor. To avoidburns when handling the motor, let it cool for at least 20minutes before trying to work on it. A thermal overload switchprotects the motor from heat damage during operation.
20
Onga Product Warranty
Onga warrants that, when this product is used for the purpose it was designed, is correctly housed andvented against weather, vermin, dust etc., that it will be free of material and manufacturing defects at thetime of the original purchase.This warranty is limited to the cost of the product and does not cover third party costs includingthe costs of electricians, plumbers, etc. unless authorised by Onga pumps.
TERMS AND CONDITIONS APPLICABLE INTERNATIONALLYHow long the warranty is effective Internationally
1) This Onga product is warranted for 12 months for all parts from the date of the first consumerpurchase. Should any parts fail as a result of such defects within the specified period, the part willbe replaced free of charge. (This does not include travel charges, removal and reinstallationcharges.)
TERMS AND CONDITIONS APPLICABLE IN AUSTRALIA ANDNEW ZEALAND
1) YOU SHOULD CAREFULLY READ THE INSTRUCTIONS SUPPLIED PRIOR TO USING THIS ONGAPRODUCT.This product is to be installed and operated in accordance with the instructions provided.This warranty will not apply if it is used in a manner other than in accordance with theinstructions.
What the warranty covers:
Onga warrants its products to be free of defects in material and workmanship during thewarranty period. If a product proves to be defective in material or workmanship during thewarranty period, then Onga will, at its sole option repair or replace the product with a likeproduct. Replacement product or parts may include re-manufactured or refurbished parts orcomponents.How long the warranty is effective:1) This Onga product is warranted for 3 years for all parts from the date of the first consumerpurchase.2) Where this Onga product is sold for commercial application as defined in the relevantTrade Practices and Consumer Protection legislation the warranty shall be for a period of sixmonths from the date of purchase by the end user.Who the warranty protects:This warranty is valid only for the consumer purchaser.What the warranty does not cover:1) Damage, deterioration or malfunction resulting from:
a) accident, misuse, negligence, fire, water, lightning, or other acts of nature,unauthorised product modification or failure to follow instructions supplied withthe product;
b) repair or attempted repair by anyone not authorised by Onga;c) any damage to the product due to shipment;d) removal or installation of the product;e) causes external to the product such as electric power fluctuations or failure;f) use of supplies or parts not meeting Onga specifications;g) normal wear and tear;h) water ingression or exposure to abnormal corrosive conditions or “run dry”
conditions;i) any other cause which does not relate to a product defect.
2) Damage caused to the product as a consequence of use of another manufacturer’sproduct used in conjunction with Onga and affiliate companies.
3) Swimming pools or spa equipment will not be warranted where the Langelier saturationindex ‘pH’ range is outside 7.2 to 7.6 and they have not been regularly treated withchlorine or bromine based sanitising systems, or other recognised sanitising systems.
Spare Parts:Spare parts are usually stocked for a reasonable period of time following last production.
Onga does not warrant that spare parts will be made available for the whole of the reasonableperiod and reserves its right to cease supplying spare parts or providing facilities for repairof spare parts in circumstances which are beyond its control including the requirement toremove spare parts from sale as a consequence of changes in the law or otherwise as itdeems fit.
6
Installation (Continued)
Only qualified, licensed personnel should install pump and wiringwhilst observing local safety regulations.Pump mount must:Be located away from corrosive or flammable chemicals.Have enough ventilation to maintain air temperature at less than themaximum ambient temperature rating. If this pump is installed in anenclosure/pump house, the enclosure must have adequate ventilationand air circulation to keep the temperature in the enclosure at or belowthe motor’s rated ambient temperature whenever the pump is running.Be solid - Level - Rigid - Vibration free. (To reduce vibration and pipe stress,bolt pump to mount).Allow pump suction inlet height to be as close to water level as possible.Allow use of short, direct suction pipe (to reduce friction losses).Allow for shut-off valves in suction and discharge piping.Have adequate floor drainage to prevent flooding.Be protected from excess moisture.Allow adequate access for servicing pump and piping.
Onga recommends mounting the pump on a concrete platform for quietestperformance.
NOTICE: For three-phase motor pumps, start the motor for a few revolutionschecking that rotation direction is clockwise (watch the motor from the fanside). If rotation is counter-clockwise, change over the connections of twophases.
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Item Part Description Qty. 1 Motor 1 2 Screw 4 3 Motor Pad 1 4 Water Slinger 1 5 Seal Plate 1 6 O-Ring 1 7 Shaft Seal 1 8 Clamp Knob 1 9 Clamp 1 10 Impeller 1
10A Impeller O-Ring** 1 10B Impeller Screw** 1 11 Diffuser 1 12 Diffuser O-Ring 1 13 Lock Washer 5 14 Screw 5 15 Pump/Tank Body 1 16 Trap Cover Assembly 1 17 Trap O-Ring 1 18 Basket 1 19 Drain Plug 2 20 Base Washer 2 21 Base Screw 2 22 Base w/ Motor Pad 1 23 Union Nut & Tail (Incl. O-ring) 2
NR: Not Required. * Not illustrated. ** Three phase only.
7
Teflon Taping Instructions:Use only new or clean PVC pipe fittings.Wrap male pipe threads with one to two layers (or a sufficient number oflayers) of Teflon tape. Cover entire threaded portion.Do not overtighten or tighten past thread stop in pump port.If leaks occur, remove pipe, clean off old tape, rewrap as previously with oneto two additional layers of tape and remake the connection.NOTICE: Support all piping connected with pump.
Piping:Use at least 2” (50mm) PVC pipe. Increase size if a long run is needed.To avoid stress on the pump, support both suction and discharge pipesindependently. Place these supports as close to the pump as possible.To avoid a strain left by a gap at the last connection, start all piping at thepump and run pipe away from the pump.Never use a suction pipe smaller than pump suction connection (2”/50mm).To avoid airlocking, slope suction pipe slightly upward toward the pump.NOTICE: To prevent flooding when removing pump for service, all floodedsuction systems must have shut-off valves in suction and discharge pipes.
Fittings:Fittings restrict flow; for best efficiency use fewest possible fittings.Avoid fittings which could cause an air trap.Pool outlets:Use only non-entrapping suction fitting or double suction conforming with theAS1926.3-2003 Standard.
Installation (Continued)
NOTICE: If the pump is not provided with a supply cord and a plug, or withother means of disconnection from the supply having a contact separation ofat least 3mm in all poles, such means for disconnection must be incorporatedin the fixed wiring.
NOTICE: Use Teflon tape for making all threaded connections to the pump.Do not use pipe dope (glue) as this will cause stress fractures in the pump.
NOTICE: Pump suction and discharge connections have moulded in threadstops. DO NOT screw pipe in beyond these stops.
18
8
Pool Pump Suction Requirements
Pump suction is hazardous and can trap and drown or disembowelbathers. Do not use or operate swimming pools, spas, or hot tubs ifa suction outlet cover is missing, broken, or loose. Follow the guidelinesbelow for a pump installation which minimises risk to users of pools, spas, andhot tubs.
Entrapment ProtectionThe pump suction system must provide protection against the hazard ofsuction entrapment or hair entrapment/entanglement.
Suction Outlet CoversAll suction outlet covers must be maintained. They must be replaced ifcracked, broken, or missing.See below for outlet cover certification requirements.All suction outlets must have correctly installed, screw-fastened covers inplace.
Testing and CertificationSuction outlet covers must have been tested by a nationally recognisedtesting laboratory and found to comply with the latest AS1926.3-2003Standard or ASME/ANSI Specification for Suction Fittings For Use in Swim-ming Pools, Spas, Hot Tubs, and Whirlpool Bathtub Applications.
Outlets Per PumpProvide at least two hydraulically balanced main drains, with covers, for eachswimming pool pump suction line. The centers of the main drains (suctionfittings) must be at least 800mm apart.
The system must be built so that it cannot operate with the pump drawingwater from only one main drain (that is, there must be at least two main drainsconnected to the pump whenever it is running). However, if two main drainsrun into a single suction line, the single suction line may be equipped with avalve which will shutoff both main drains from the pump.
More than one pump can be connected to a single suction line as long as therequirements above are met.
17
Troubleshooting Guide (Continued)
Symptom Cause Remedy Air ingress to system. Prime the pump. Check that
there are no air leaks in the suction piping or fittings. Ensure the strainer lid is airtight and fitted securely. Check that there are no leaks coming from beneath the pump.
Low voltage. Check voltage at motor terminals and at meter while pump is running – this check should be performed by a qualified electrician only. If voltage is low check for loose connections or consult your power company.
Pump running too slowly.
Pump may be too hot. Check line voltage; if less than 90% or more than 110% of rated voltage consult a licensed electrician. Increase ventilation. Reduce ambient temperature. Tighten any loose connections.
Pump leaking from between the casing and motor.
Casing bolts are not tightened sufficiently; Casing O’ring is worn; Mechanical seal requires replacing; Casing clamp is loose.
Switch off the power to the pump. Loosen the casing bolts. Check the alignment and condition of the casing o’ring before retightening the bolts. Replace the o’ring if leaking persists. Replace the mechanical seal.
Should problems persist, contact your nearest Onga service agent.
9
Water VelocityThe maximum water velocity through any suction outlet must be 1.8 metresper second or less unless the outlet complies with the latest AS1926.3-2003Standard or ASME/ANSI Specification for Suction Fittings For Use in Swim-ming Pools, Spas, Hot Tubs, and Whirlpool Bathtub Applications. In anycase, do not exceed the suction fittings maximum designed flow rate.
If 100% of the pump’s flow comes from the main drain system, the maximumwater velocity in the pump suction hydraulic system must be 1.8 metres persecond or less even if one main drain (suction fitting) is completely blocked.The flow through the remaining main drain(s) must comply with the latestAS1926.3-2003 Standard or ASME/ANSI Specification for Suction FittingsFor Use in Swimming Pools, Spas, Hot Tubs, and Whirlpool BathtubApplications.
16
Troubleshooting Guide
Symptom Cause Remedy Pump must be primed; make sure that the pump casing and strainer are full of water. Refer priming instructions. Make sure there are no leaks in suction piping. Make sure suction pipe inlet is well below the water level to prevent pump from sucking air.
Suction leaks / lost prime
Suction lift of 3 to 6 metres will reduce performance. Suction lift of more than 6 metres will prevent pumping and cause pump to lose prime. In either instance, move the pump closer (vertically) to water source. Ensure that the suction pipe diameter is large enough. Ensure trap is not clogged with debris; if it is, clean strainer & basket. Make sure that the impeller is not clogged. This should be checked by qualified personnel only. Impeller and diffuser may be worn. If so, check with your local Onga dealer or suitably qualified personnel.
Clogged pipe / strainer / impeller, worn impeller.
Pump may be trying to push too high a column of water. If so, a “higher head” pump is required.
No power at outlet. Use another electrical appliance that is known to work to check the power outlet.
Blown fuse. Check fuse and replace if necessary.
Motor burnt out due to voltage spike or flooded by water.
The motor may need replacing.
Pump failure or reduced capacity or reduced discharge pressure.
Valves turned to the closed position.
Check the plumbing to ensure the valves are in the correct position for pumping on the suction and discharge.
10
Electrical
Ground motor before connecting to electrical powersupply. Failure to ground motor can cause severe orfatal electrical shock hazard.
Do not ground to a gas supply line.
To avoid dangerous or fatal electrical shock, turn OFFpower to motor before working on electricalconnections.
Residual Current Device (RCD) tripping indicates anelectrical problem. If RCD trips and will not reset,have a qualified electrician inspect and repairelectrical system. Onga recommends that a RCD of30mA trip current be installed and/or be incompliance with local regulations.
Exactly match supply voltage to motor nameplatevoltage. Incorrect voltage can cause fire or seriouslydamage motor and voids warranty. If in doubtconsult a licensed electrician.
The power supply lead has a type “Y” connector andif service is required to the power lead, it must bereplaced with the appropriate specialised power leadassembly. Warranty is void if unauthorisedmodifications are made to any component.
VoltageVoltage at motor must not be more than 10% above or below motornameplate rated voltage or motor may overheat, causing overload tripping andreduced component life. If voltage is less than 90% or more than 110% ofrated voltage when motor is running at full load, consult power company.
15
Pump Service (Continued)Pump Reassembly/Installing NewSeal1. Ceramic seat must be clean and free of
dirt, grease, dust, etc. Wet outer edgeof rubber cup on ceramic seat withsmall amount of liquid detergent; pressceramic seat into seal plate firmly andsquarely with finger pressure (as perfigure to left).
2. If ceramic seat will not locate properly,remove it, place face up on bench andreclean cavity. Repeat Step 1. Ceramicseat should now locate.
3. If seat still will not locate properly, placea cardboard washer over the polishedface and use a piece of ¾” (19mm)standard pipe for pressing purposes.NOTICE: Be sure not to scratch ormar the polished surface or the seal willleak.
4. Remount seal plate on motor. Tighten bolts to 69-92 kg/cm torque.5. Apply a small amount of liquid detergent to inside diameter of rotating
half of seal.6. Slide rotating seal member, polished face last, over impeller sleeve until
rubber drive ring hits shoulder.NOTICE: Be sure not to nick or scratch polished seal face; seal willleak if face is damaged.
7. Screw impeller onto shaft (clockwise); this will automatically locate sealin seal plate.NOTICE: On models with impeller screw: Install impeller gasket and lockscrew (left-hand thread - turn counterclockwise to tighten). Torquelock screw to 57.6-63 kg/cm.
8. Mount diffuser on seal plate; tighten screws to 11.2-16.1 kg/cm torque.9. Assemble motor and seal plate to pump casing; ensuring that the body
clamp is properly seated.NOTICE: Clamp knob can be located in any position around the pumpbody; if it is moved after assembly, tighten knob while tapping aroundthe clamp to assist sealing. Do not move clamp while pump is full ofwater.
Hazardous pressure. Release all pressure from pump and pipingsystem before working on pump or attempting to adjust or removeclamp. Clamp may blow off of pump if adjusted under pressure.
10. Prime pump according to instructions on Page 12.
11
Operation
NEVER run pump dry. Running pump dry maydamage seals, causing leakage and flooding. Fillpump with water before starting motor.
Before removing trap cover:1. SWITCH OFF POWER SUPPLY to pump and
unplug from outlet before proceeding.2. CLOSE SHUT-OFF VALVES in suction and
discharge pipes.3. RELEASE ALL PRESSURE from pump and
piping system.4. NEVER tighten or loosen clamp while pump
is operating!
If pump is being pressure tested, ensure pressurehas been released before removing trap cover.
Do not block pump suction. To do so with bodymay cause severe or fatal injury. Small childrenusing pool must ALWAYS have close adultsupervision.
Fire and burn hazard. Modern motors run at hightemperatures. To reduce the risk of fire, do not allowleaves, debris, or foreign matter to collect around thepump motor. To avoid burns when handling the motor, letit cool for at least 20 minutes before trying to work onit.An internal thermal overload switch protects the motorfrom heat damage during operation.
NOTICE: Maximum ambient temperature for motoroperation must not exceed maximum ambienttempearture rating.
This appliance is not intended for use by young childrenor infirm persons without supervision. Young childrenshould be supervised at all times when near thisappliance.
14
Pump Service (Continued)
Pump Disassembly/Removing Old Seal
Disconnect power to pump motor.
Ensure shut-off valves on suction and returnpiping are closed before starting work on thepump.
Release all pressure by opening all vents beforestarting work.1. Drain pump by removing drain plugs on bottom
of pump body and trap body.2. Ensure there is no pressure in trap body;
remove cover (unscrew by turning handle ringcounterclockwise).
3. Remove clamp holding pump halves together.Motor and seal plate assembly can now bepulled away from pump body.
4. Remove five screws and washers holdingdiffuser to seal plate. Remove the diffuser.
5. Remove motor cowl and motor fan.6. Hold shaft with an open-end wrench (or vice
grips) on motor shaft flats.7. Unscrew impeller from shaft (turn
counterclockwise when facing it).NOTICE: On models with impeller screw:Remove impeller screw (left hand thread - turnclockwise) and gasket before removing impeller.Inspect gasket for damage, cracks, etc. Replaceif damaged.
8. Pull rotating member of seal off of impellersleeve; clean sleeve.
9. Remove four screws holding seal plate to motor.10. Place seal plate face down on flat surface and
lightly tap out ceramic seat.11. Clean seal cavity in seal plate and clean motor
shaft.
12
Priming PumpRelease all air from filter, pump and piping system: refer filter owner’s manual.In a flooded suction system (water source higher than pump), pump will primeitself when suction and discharge valves are opened.If pump is not in a flooded suction system, disconnect power supply to pumpand remove trap cover handle ring and trap cover; fill trap and pump withwater.Do not lubricate the trap cover O’ring. The original equipment O’ring containsa permanent internal lubricant.
NOTICE: If you replace the O’ring with a non-internally lubricated O’ring, youmay need to apply a silicone based lubricant.
Clean and inspect O’ring; reinstall on trap.Replace trap cover and handle ring on trap; turn handle ring clockwise totighten cover.
NOTICE: Tighten trap cover handle ring by hand only (no wrenches!)
Pump should prime now. Priming time will depend on vertical height of suctionlift and horizontal length of suction piping. The self-priming time range is 1 to 5minutes for a height difference of 2 to 3 metres, under normal installationconditions. Normal conditions are understood to be: with suction having aninternal diameter of DN 50mm, water temperature at 20oC, and 50Hz mainspower supply.Should the pump not prime, ensure that all valves are open, lint trap is clear ofdebris and suction pipe end is submersed in water, and that there are no leaksin suction pipe.See Troubleshooting Guide.
Operation (Continued)
13
Operation (Continued)
Routine MaintenanceThe only routine maintenance required is inspection/cleaning of trap basket.Debris or trash that collects in basket will choke off water flow through thepump. Follow instructions below to clean trap:
1. Switch off power to pump, close valves in suction and discharge, andrelease all pressure from system before proceeding.
2. Remove trap cover handle ring (turn counterclockwise). If necessary,tap handles gently with a rubber mallet.
3. Remove strainer basket and clean. Ensure all holes in basket are clear,flush basket with water and replace in trap with large opening at pipeconnection port (between ribs provided). If basket is replacedbackwards cover will not fit on trap body. To clean transparent cover,use water and neutral soap only. Do not use solvents.
4. Clean and inspect lid o’ring; reinstall on trap.5. Clean O’ring groove on trap body and replace cover and handle ring. To
help keep cover from sticking, tighten hand tight only.6. Prime pump (refer priming instructions).
Pump Service
Pump should only be serviced by qualified personnel. For bestresults, use only genuine Onga factory parts.Be sure to prime pumpbefore starting.
Before removing clamp or trap cover:1. SWITCH OFF POWER to pump before proceeding.2. CLOSE SHUT-OFF VALVES in suction and discharge pipes.3. RELEASE ALL PRESSURE from pump and piping system.4. NEVER tighten or loosen clamp while pump is operating!
To avoid dangerous or fatal electrical shock hazard, turn OFF power to motorand remove plug from power outlet before working on pump or motor.
No lubrication or regular maintenance is needed beyond reasonable care andperiodic cleaning of strainer basket. When pump is not in use and there is a riskof frost, empty it completely through the drain plug.If shaft seal is worn or damaged, repair as per the procedure on page 14.
