Fig.12, Fig.9 fig.8, Fig.10 fig.11 – Sealey PWDM3600 User Manual

Page 5: Maintenance (engine)

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fig.12

7.4. FUEL FILTER. The fuel filter is in the neck of the fuel tank.

7.4.1 Clean it every 100 hours and replace it every 500 hours.

7.5. ENGINE STORAGE. If the unit is not to be used for more than

one month the following procedure should be followed:

7.5.1 Change the oil. Operate the engine for 3 minutes to warm the

oil then stop the engine using the shut down procedure

described in section 5.4. There is a hole in the chassis below

the oil drain plug. See fig.6. Place a suitable container below

the hole, remove the plug and allow the oil to drain. Replace

the drain plug and refill with fresh oil. Check the oil level using

the dipstick. Dispose of the old oil according to local authority

guidelines.

7.5.2 Drain the diesel fuel from the fuel tank, fuel line and fuel tap.

7.5.3 Push and hold down the decompression lever whilst the engine

is turned over 2 or 3 times using the recoil starter. Let go of the

decompression lever then pull the starter handle slowly until an

increase in pressure is felt indicating that the piston has

commenced its compression stroke and leave it in this position.

This closes both the intake and exhaust valves and prevents the

inside of the cylinder from rusting.

7.5.4 Cover the unit and store it in a clean dry place that is well

ventilated and away from open flame or sparks.

7. MAINTENANCE (ENGINE)

7.1. Change engine oil after the first 20 hours of operation.

Thereafter, change oil every three months or every 100 hours of

operation. Change oil more often if engine is operated under

heavy load, or in high ambient air temperatures. During normal

operation, partially burned fuel, small particles of metal from the

cylinder walls, pistons, bearings and combustion deposits will

gradually contaminate the oil. If the oil is not changed regularly,

these foreign particles can cause increased friction and a

grinding action which shortens the life of the engine. Fresh oil

also assists in cooling. Old oil will gradually thicken and

lose its cooling ability as well as its lubricating qualities.

6.2.

WATER INLET FILTER. Check and clean the water inlet filter

every 50 operating hours. The filter is moulded into a rubber

washer. Unscrew the brass connector from the black fitting on

the water inlet on the pump. Push the black fitting backwards

which will eject the filter/washer and then clean the filter

washer. If the filter is damaged in any way it should be

replaced.

6.3.

DETERGENT FILTER. Check and clean the detergent filter at

the end of the detergent input tube on a regular basis.

6.4.

WINTER STORAGE. Fill the pump with an antifreeze

mixture before storing in a frost free, safe, dry area for the

winter. Introduce the antifreeze by the following method:

6.4.1. Shut off the water supply and disconnect the supply hose.

Relieve pressure within the pump by squeezing the gun

trigger. Remove the high pressure hose and let all water drain

from it. Hold gun/lance with nozzle downwards and pull

trigger until all water has drained out.

6.4.2. Connect a short length of garden hose to the water inlet and

using a funnel pour an antifreeze mixture into it.

6.4.3. Pull the recoil starter several times to circulate the antifreeze

through the pump. Continue to add antifreeze and pull the

recoil until antifreeze is expelled from the pump.

fig.9

fig.8

7.2. CHECKING THE OIL LEVEL. Ensure the unit is level.

7.2.1. Unscrew the dipstick/oil filler cap (see fig.6) and wipe it clean

of oil. Note that the maximum oil level should be just below

the opening of the filler neck.

7.2.2. Check the oil level by seating the dipstick into the hole without

screwing it in. See fig.9 above. On removal the oil level should

be between the two marks on the dipstick. If it is at the lowest

level or below, top-up immediately with an SAE10W30 (CC or

DD) oil.

7.2.3. Screw dipstick fully home to seal oil fill hole. Note: The engine

is

fitted with a low oil sensor which will automatically shut the

engine down in a low oil situation. The sensor may also

operate if the unit is not on a level surface.

7.3. CHECKING THE OIL STRAINER. (see fig.6)

7.3.1. Check, clean and/or replace the oil strainer every time the oil

is changed as this can only be done when the sump is empty.

Undo the retaining bolt and withdraw the strainer. Clean/rinse

the strainer in clean diesel fuel and re-insert it. Ensure the

retaining bolt is replaced.

7.6. AIR FILTER. The air filter is situated between the engine

and the frame, below the frame handle (see fig.10). To access

the air filter element unscrew and remove the wing nut on the

front of the cover. Pull the black cover outwards and off its

threaded mounting rod until it touches the frame, then lift it

upwards and away to reveal the element as shown in fig.11.

Unscrew the wing nut from the top of the filter element and pull

the element from the threaded rod.

7.6.1. Remove the foam sleeve from the outside of the element and

tap

the element on a hard surface to dislodge any dust

accumulations

from the paper part of the element. If

compressed air is available it can be used to blow out the

element. Do not use a brush as this will be more likely to force

dirt into the paper. If the paper element is heavily contaminated

replace it.

7.6.2. Wash the foam sleeve with a household detergent or a high

flash-point solvent and squeeze dry. When the sleeve is

thoroughly dry, soak it in clean engine oil. Squeeze out any

excess oil and stretch the sleeve back over the element. Place

the element back over the threaded rod and make sure it seats

properly onto the seal on the air filter base plate as in fig.12.

Secure the element with the wing nut. Place the outer cover

back over the element and secure it with the other wing nut.

7.6.3. The whole filter should be replaced after every 500hrs of service.

fig.10

fig.11

Original Language Version

© Jack Sealey Limited

PWDM3600 Issue: 1 - 08/05/13

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