Dewalt DH4240B Instruction Manual - Page 15

Maintenance - pump parts

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English Note: If the oil level in the engine is low, the engine will not start. If the engine does not start, check the oil level and add oil as needed. 14. As the engine warms up, move the choke to the open position. 15. Depress trigger on gun to start water flow. Warning: Risk of unsafe operation. Stand on a stable surface and grip gun/wand firmly with both hands. Expect the gun to kickback when triggered. 16. Release trigger to stop water flow. DANGER: Risk of injury from spray. Engage the trigger lock (X) when gun is not in use to prevent X accidental spraying. 17. Adjust spray for the task being performed by changing quick connect nozzle. Refer to Spray Wand Nozzles. Shutting Down 1. If chemicals were applied, place the chemical hose into a container of clean water and draw clean water through chemical injection system to rinse system thoroughly. NOTICE: Risk of property damage Failure to do so could cause damage to the pump. 2. Place the engine ON/OFF switch (H) to the OFF Position. 3. Place the fuel valve lever (M) in the OFF postion. NOTICE: Risk of property damage. Never turn water supply off while pressure washer engine is running or damage to pump will result. 4. Turn water source off. 5. Pull trigger on spray gun to relieve any water pressure in hose or spray gun. 6. Refer to Storage for proper storage procedures. MAINTENANCE WARNING: Risk of burning. When performing maintenance, you may be exposed to hot surfaces, water pressure or moving parts that can cause serious injury or death. WARNING: Risk of fire. Always disconnect, spark plug wire, let the engine cool and release all water pressure before performing any maintenance or repair. The engine contains flammable fuel. Do not smoke or work near open flames while performing maintenance. To ensure efficient operation and longer life of your pressure washer, a routine maintenance schedule should be prepared and followed. If the pressure washer is used in unusual conditions, such as high temperatures or dusty conditions, more fre­quent maintenance checks will be required. Engine Consult the engine instruction manual for the man­u­fact­ur­er's recommendations for any and all maintenance. NOTE: The pressure washer frame is equipped with an oil drain hole to help make changing the engine oil easier. Pump NOTE: The pump was filled with oil at the factory. Change pump oil after the first 50 hours of operation and every 300 hours thereafter. To Check Oil The oil level should come to the dot in the middle of the sight glass (AA). 15

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15
English
NOTE:
If the oil level in the engine is low, the engine will not start.
If the engine does not start, check the oil level and add oil as
needed.
14. As the engine warms up, move the choke to
the OPEN position.
15. Depress trigger on gun to start water flow.
WARNING:
Risk of unsafe operation. Stand
on a stable surface and grip gun/wand firmly with
both hands. Expect the gun to kickback when
triggered.
16. Release trigger to stop water flow.
DANGER:
Risk of injury from spray. Engage the
X
trigger lock (X) when gun is not in use to prevent
accidental spraying.
17. Adjust spray for the task being performed
by changing quick connect nozzle. Refer to
Spray Wand Nozzles
.
Shutting Down
1. If chemicals were applied, place the chemical hose into a
container of clean water and draw clean water through chemical
injection system to rinse system thoroughly.
NOTICE:
Risk of
property damage Failure to do so could cause
damage to the pump.
2. Place the engine ON/OFF switch (H) to the OFF Position.
3. Place the fuel valve lever (M) in the OFF
postion.
NOTICE:
Risk of property damage. NEVER
turn
water supply off while pressure washer engine is
running or damage to pump will result.
4. Turn water source off.
5. Pull trigger on spray gun to relieve any water pressure in hose or
spray gun.
6. Refer to
Storage
for proper storage procedures.
MAINTENANCE
WARNING:
Risk of
burning. When performing maintenance, you
may be exposed to hot surfaces, water pressure or moving parts that
can cause serious injury or death.
WARNING:
Risk of fire. Always disconnect, spark plug wire, let
the engine cool and release all water pressure before performing
any maintenance or repair. The engine contains flammable fuel. Do
not smoke or work near open flames while performing maintenance.
To ensure efficient operation and longer life of your pressure washer,
a routine maintenance schedule should be prepared and followed.
If the pressure washer is used in unusual conditions, such as high
temperatures
or
dusty
conditions,
more
frequent
maintenance
checks will be required.
Engine
Consult the engine instruction manual for the manufacturer's recom-
mendations for any and all maintenance.
NOTE:
The pressure washer frame is equipped with an oil drain
hole to help make changing the engine oil easier.
Pump
NOTE:
The pump was filled with oil at the factory.
Change pump oil after the first 50 hours of operation and every 300
hours thereafter.
TO CHECK OIL
The oil level should come to the dot in the middle of the sight
glass (AA).