CLARKE PW50A Petrol Engine Driven Pump User Manual

CLARKE PW50A Petrol Engine Driven Pump

Product Information

Specifications:

• Model No: PW50A
• Part No: 7140651
• Engine Type: Petrol Engine Driven
• Operation: Manual
• Manufacturer: Clarke International

Product Usage Instructions

Introduction
The PW50A petrol engine driven 2 pump is designed for pumping water only. It is essential to follow the safety precautions and operating instructions outlined in this manual to ensure safe and effective use of the pump.

Safety Precautions

1. Thoroughly familiarize yourself with the pump and its operation by reading the manual.
2. Always ensure proper positioning of the pump to prevent movement during operation.
3. Use the ON/OFF switch to prevent inadvertent starting during maintenance.
4. Use a strainer on the suction hose to prevent damage from solids.
5. Keep the pump dry and away from water discharge.
6. Use flexible hose for pipe connections to avoid stress on the pump.
7. Observe safety precautions for fuel handling.
8. Operate the pump in a well-ventilated area.
9. Avoid refueling while the engine is running and use water only, no flammable liquids or corrosive chemicals.
10. Do not operate the pump in explosive atmospheres or near combustible materials.

FAQ

• Q: Can I use this pump for pumping petrol?
  A: No, this pump is designed for pumping water only. Do not use it for pumping petrol or other flammable liquids.

• Q: What should I do if I notice damage to the pump?
  A: If you notice any damage that could affect the operation of the pump, have it repaired by a qualified person. Always check for damage before using the pump.

PETROL ENGINE DRIVEN 2” PUMP
MODEL NO: PW50A
PART NO: 7140651

OPERATION & MAINTENANCE INSTRUCTIONS

INTRODUCTION

• Thank you for purchasing this CLARKE Pump.
• The PW50A petrol driven pump is designed for pumping clean water, or water containing small solids in suspension. As the pump is fitted with an open impeller the suction strainer supplied must always be used to ensure that large stones or other objects cannot be drawn up, as this would cause severe damage to the pump. It is NOT designed for pumping slurry, sludge, mud or heavily polluted water, or any water containing chemicals or other acidic contaminants including salt water. This pump has the ability to pump solids in suspension no larger than 4 mm.
• Before attempting to use this product, please read this manual thoroughly and follow the instructions carefully. In doing so you will ensure the safety of yourself and that of others around you, and you can look forward to your purchase giving you long and satisfactory service.

SAFETY PRECAUTIONS

CAUTION: AS WITH ALL MACHINERY, THERE ARE CERTAIN HAZARDS INVOLVED WITH THE OPERATION AND USE OF THIS WATER PUMP. EXERCISING CAUTION WILL REDUCE THE RISK OF PERSONAL INJURY.

SAFETY WHEN USING YOUR PUMP

1. Thoroughly familiarise yourself with the pump & its operation and follow all instructions in this manual.
2. ALWAYS ensure that the pump is properly positioned to prevent it moving during operation and that the immediate area surrounding the pump is kept clear.
3. ALWAYS ensure the pump cannot be started inadvertently by using the ON/OFF switch whenever carrying out maintenance or making adjustments.
4. ALWAYS use a strainer on the suction hose to prevent stones and other solids from being drawn up, which could severely damage the pump.
5. ALWAYS keep the pump dry and well clear of water discharge
6. ALWAYS use at least 300 mm of flexible hose to make pipe connections to the pump. Rigid piping may put stress on the pump causing damage. If rigid piping is used, it should be supported so as to eliminate stress.
7. ALWAYS observe all safety precautions for the handling of fuel.
8. ALWAYS use in a well ventilated area.
9. NEVER refuel the engine whilst it is running and allow the engine to cool sufficiently before refuelling.
10. NEVER use for pumping petrol (or other flammable liquids) or corrosive chemicals. This pump is designed to pump water only.
11. NEVER operate an engine driven pump in an explosive atmosphere, near combustible materials, or where there is insufficient ventilation.
12. NEVER run the pump dry. ALWAYS fill the pump with water before starting.
13. NEVER attempt any major repairs to this product unless you are qualified.
14. NEVER direct the discharge flow towards another person.
15. NEVER direct the water discharge towards electrical wiring or equipment.
16. NEVER use indoors or in a confined space.
17. NEVER over-tighten drain or filler plugs. Excessive force may damage the threads or the pump body.
18. ALWAYS use only original CLARKE replacement parts. The use of non-standard parts could be hazardous.
19. ALWAYS check for any damage or any condition that could affect the operation of the pump. Damaged parts should be properly repaired.
20. Have your pump repaired by a qualified person. Repairs should only be carried out by qualified persons using original spare parts, otherwise this may result in considerable danger to the user.

GENERAL SAFETY IN THE WORKPLACE

1. ALWAYS keep work area clean & tidy. Cluttered work areas invite accidents.
2. NEVER over-reach. Keep proper footing and balance at all times.
3. Keep other persons away. DO NOT let persons, especially children, touch the pump and keep them away from the work area.
4. ALWAYS ensure the workplace is well lit. Ensure that lighting is placed so that you will not be working in your own shadow.
5. Dress properly. Loose clothing or other jewellery may get caught in moving parts. Non-slip footwear is recommended. Wear protective hair covering to contain long hair.
6. ALWAYS wear safety glasses. (Everyday glasses are not safety glasses).

OVERVIEW

1| Inlet Strainer/filter| 12| Suction Chamber Drain Plug
2| Inlet Adaptor/locking ring with O-ring| 13| Plug spanner/tommy bar
3| Water Filler Plug| 14| Fuel Shut-off Valve
4| Outlet Adaptor/locking ring with O-ring| 15| Choke Lever
5| Fuel Filler Cap| 16| Throttle Lever
6| Air Filter Housing| 17| Starter Recoil
7| Carburetor Drain Plug| 18| ON/OFF Switch
8| Spark Plug| 19| Oil Drain Plug
9| Suction Chamber Bolt| 20| Oil Filler and Dipstick
10| Inlet or Suction Chamber| 21| Rubber feet/fixings
11| Hose Securing Clips| |

BEFORE USE

FITTING THE FEET

1. Fit the 4 x rubber feet to the frame using the nuts and washers supplied.

FILLING WITH OIL

This pump is not supplied containing engine oil or fuel. Use an engine oil of SAE 15-40 rating unless operating at very high or low ambient temperatures.

To fill the engine crankcase with oil:

1. Remove the filler plug/dipstick.
2. Fill the unit with oil until visible inside.
3. Check the level by inserting the dipstick back into the filler tube and checking the level is within the indicated range. If correct replace the dipstick/filler cap

FILLING WITH FUEL
WARNING: WIPE UP ANY SPILT FUEL BEFORE RUNNING THE PUMP. ALLOW THE ENGINE TO COOL DOWN BEFORE REFUELLING

Use unleaded petrol.

1. Open the fuel cap and top up as required. Located within the fuel tank is a filter. Check this filter periodically and remove any contaminants which may have accumulated. Do not fill above the fuel filter shoulder.
2. After refuelling, tighten the fuel filler cap securely.

INSTALLING THE PUMP

1. Position the pump on a firm foundation and as near to the water source as possible.

2. Connect the suction and discharge hoses to the pump using the hose clamps and sealing rings supplied, to achieve an airtight seal.

3. There must be no damage to the hoses which must be adequately protected and supported.
   NOTE: Hoses or pipes should be supported independently and not carried by the pump.

4. IMPORTANT: An air leak in the suction line will prevent priming, and reduce the performance of the pump.

5. Pay particular attention to the following:

6. Always ensure the hose adaptor sealing ring is in place and correctly fitted.

7. Always use a flexible hose at the pump body connection of at least 1ft (300 mm) length.

8. Keep all pipes/hoses as short and straight as possible and avoid sharp bends. If a flexible hose must be laid across a roadway, protect it with planking.

9. Ensure there is adequate drainage for the discharged water, and that there is no danger of damage to property as a result of the pumping activity.
   NOTE: Instantaneous shut off pressure, applied when a vehicle runs across an unprotected hose, will cause “hydraulic shock”, which can damage the pump and/or the hose.

10. Attach the inlet strainer to the end of suction hose using a further hose clamp, to prevent large stones etc, from being drawn up which could cause severe damage. Keep the strainer free of debris.

11. If it is likely to clog with dirt or debris, proceed by either:

12. preparing a bed of stones on which to rest the strainer.

13. tying the strainer so that it stays off the bottom of the pit, pond or excavation.

14. rest the strainer inside a basket or bucket to keep undue debris away.

15. Prime the pump with water by removing the filler plug on top of the pump and filling with water, leaving no air gap.

16. The pump is self-priming only when the pump is filled. It will prime and re-prime itself without refilling. Refilling is necessary only if the pump has been drained.

17. Never allow the pump to run dry.

18. If the discharge hose runs vertically more than 30ft a check valve should be installed in the discharge hose near the pump to stop water hammer when the pump is shut down.

19. It is the pump owners responsibility to supply and install a check valve to protect the pump in this way.

20. Properly fueled and lubricated, the pump will run without further attention.

OPERATION

• WARNING: WHEN THE ENGINE IS RUNNING THE EXHAUST MUFFLER IS VERY HOT. TAKE CARE TO AVOID BURNS. NEVER RUN THE ENGINE IN AN ENCLOSED SPACE – ENSURE THERE IS ADEQUATE VENTILATION.
• Ensure the site and pump are prepared with the pump primed with water to avoid any possibility of dry running, then proceed as follows:

STARTING
Note the markings displayed on the engine parts, for the following choke and throttle settings.

1. Set the engine On/Off switch to On.
2. Move the fuel valve to the right side (open position).
3. Pull the starter recoil rope slowly two or three times to allow fuel to reach the carburetor.
4. The direction of operation is marked on the machine.
5. To start a cold engine, set the choke lever to the ‘ON’ position, but if the engine is already warm, the choke should be in the ‘OFF’ position.
6. Set the throttle about one third open.
7. Pull the recoil starter rope firmly until the engine starts. Do not snatch at the starter rope and allow it to recoil slowly after each pull.
8. Once the engine starts, gradually return the choke to the open position as the engine warms up and use the engine throttle to gradually increase engine speed.

CONTROL DURING OPERATION

• After starting the engine, move the throttle to the open position for priming of the pump and checking for pump output. Output is controlled by adjusting the engine speed.
• The pump should begin discharging liquid in a few moments. To further reduce priming time, the engine speed may be increased after the engine is properly run in. If pumping does not start within this time, shut off engine and check carefully to find the problem. See TROUBLESHOOTING.
• NOTE: Filling the suction pipe with water will speed up the priming process, and it is recommended that a non-return valve be fitted to the end of the suction pipe.
• On higher vertical lifts, a higher engine speed is necessary but on shallow lifts or when there is little water to pump, preserve fuel and engine wear by reducing engine speed.
• In the event of blockages, where debris has entered the suction chamber, the suction chamber can be opened and cleaned out by removing the bolts
  (No.12) shown in the pump assembly layout on page 15.

SHUTTING DOWN

1. Reduce engine speed to minimum using the throttle lever.
2. Stop the engine by switching OFF the ignition switch.
3. Close the fuel valve.

MAINTENANCE

1. Always maintain the pump in a clean condition, checking regularly for loose bolts etc.
2. Clean the air filter once every 50 hours of use (or more often in unusually dusty conditions) as follows.
3. Unscrew the wingnut and lift off the air filter assembly from the engine.
4. Remove the components shown and clean the foam filter element with a high flashpoint solvent. Squeeze dry, then dip in clean engine oil and squeeze oil excess oil.
5. Never operate the pump without the air cleaner installed as this would cause premature wear to the engine.
6. Replace the spark plug after the first month or every 50 hours of use.
7. Check when installing that the spark plug has the correct clearance by measuring with a feeler gauge and adjusting the side electrode as required.
8. Clearance should be 0.7-0.8mm.
9. The recommended spark plug is LDF7RTC.

CHANGING THE OIL
CAUTION: PROLONGED EXPOSURE TO USED OIL IS HARMFULL, ALWAYS WASH YOUR HANDS THOROUGHLY AFTER HANDLING USED OIL.

• The oil in the engine should be changed after the first 20 hours use and thereafter every 6 months or 100 running hours.
• Remove the dipstick and drain plug and then drain the oil. Re-fill and check the level as described on page 6.
• We recommend SAE15W-40 or equivalent motor oil.

ENVIRONMENTAL PROTECTION
One of the most damaging sources of pollution is oil. Do not throw away used oil with domestic refuse or flush down a sink or drain. Collect old oil in a leak-proof container and take it to your local waste disposal site.

STORAGE

• After use, drain the pump body whenever there is danger of freezing, and if the pump has been used with contaminated or salty water, It should be thoroughly flushed with clean water following use, both inside and out and drained before replacing the drain plug.
• Always transport the pump with the fuel cock turned off and keep the unit level to prevent any fuel from spilling.

If the pump is not to be used for some time, it should be flushed thoroughly with clean water, and drained completely before storing in a clean dry environment. Additionally, it should be prepared as follows:

1. Drain the fuel tank and carburetor completely by opening the drain plug in the carburetor float chamber and draining all remaining fuel into a suitable container ensuring the fuel shut- off valve is closed.
2. Remove the spark plug, and pour 2- 3 teaspoons of light oil into the cylinder through the spark plug hole.
3. Pull the starter recoil rope slowly 2 or 3 times so that the oil is deposited on the cylinder walls and replace the spark plug.
   Suction and delivery hoses, additional connectors and filters are available from your Clarke stockist.

TROUBLESHOOTING

fitted to the plug. With the switch in the ON position, hold the spark plug electrode against the engine and pull the starter cord to observe the spark. If spark is present but engine will not start, consult your Clarke dealer.
Engine stops and will not re-start.| Lack of fuel in tank| Fill tank as necessary.
Lack of oil in engine causing ‘Low Oil Protector’ sensor to stop engine from running.| Top up oil sump as necessary.
PROBLEM| CAUSE| SOLUTION
---|---|---
Pump fails to prime.| Priming chamber not filled correctly.| Fill priming chamber leaving no air gap.
Air leaking through the suction line joints due to damaged hose, broken hose clamps, split/ill-fitting gasket.| Carry out repairs as necessary.
Blocked inlet hose.| Clean strainer and ensure it is not submerged in mud or sediment. Ensure there are no kinks in the delivery hose.
Engine speed too low.| Increase engine speed.
Damaged impeller.| Dismantle pump and replace impeller.
Air leaking through damaged seal.| Replace seal.
Low output from pump.| Engine speed too low.| Increase engine speed.
Impellor clogged.| Clean strainer and ensure it is not submerged in mud or sediment.
Pickup or delivery hose obstructed.| Clear obstruction and ensure there are no kinks in hose.
High frictional losses in long inlet hose.| Avoid un-necessary curves, restrictions or valves.
Suction lift too high.| Position pump as close as possible to the water level.
Congested material inside pump.| Dismantle pump and clean out.
Damaged impeller.| Dismantle pump and replace impeller.

If, after reading the troubleshooting chart you are still unable to rectify any faults, please contact your local dealer or CLARKE International for assistance.

ENVIRONMENTAL RECYCLING POLICY
At the end of its working life, do not dispose of this product or its components with general household waste. Any tools, accessories and packaging should be sorted, taken to a recycling centre and disposed of appropriately.

SPECIFICATION

COMPONENT PARTS – GENERAL

COMPONENT PARTS – PUMP ASSEMBLY

COMPONENT PARTS – ENGINE ASSEMBLY

COMPONENT PARTS – ENGINE ASSEMBLY

GUARANTEE

• This product is guaranteed against faulty manufacture for a period of 12 months from the date of purchase. Please keep your receipt which will be required as proof of purchase.
• This guarantee is invalid if the product is found to have been abused or tampered with in any way, or not used for the purpose for which it was intended. Faulty goods should be returned to their place of purchase, no product can be returned to us without prior permission.
• This guarantee does not effect your statutory rights.

DECLARATIONS OF CONFORMITY

A SELECTION FROM THE VAST RANGE OF

• PARTS & SERVICE: 0208 988 7400

• Parts Enquiries
  Parts@clarkeinternational.com

• Servicing & Technical Enquiries
  Service@clarkeinternational.com

• SALES: UK 01992 565333 or Export 00 44 (0) 1992 565335

• INTERNATIONAL Hemnall Street, Epping, Essex CM16 4LG www.clarkeinternational.com

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