Maintenance - Simpson MSH3125 Instruction Manual

NOTIcE: Risk of property damage. NEVER turn the water off with the engine
running.
3. Turn water source off.
4. Pull trigger on spray gun to relieve any water pressure in hose or spray gun.
5. See Storage section in this manual for proper storage procedures.
WARNING: Risk of burn hazard. 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 hazard. 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
fre quent maintenance checks will be required.
ENGINE
Consult the Engine Owners manual for the man u fac tur er's recommendations for
any and all maintenance. NOTE: The engine drain plug is located at the rear of the
unit.
pUMp
The pump was filled with oil at the factory. The pump on this unit is maintenance
free and requires no oil. If there is a problem with the pump contact us at
www.simpsoncleaning.com
CONNECTIONS
Connections on pressure washer hoses, gun and spray wand should be cleaned
regularly and lubricated with light oil or lithium grease to prevent leakage and
damage to the o-rings.
NOzzLE CLEANING (FIG. 11)
If the nozzle becomes clogged with foreign materials, such as dirt, excessive
pressure may develop. If the nozzle becomes partially clogged or restricted, the
pump pressure will pulsate. Clean the nozzle immediately using the nozzle kit
supplied and the following instructions:
1. Shut off the pressure washer and turn off the water supply.
2. Pull trigger on gun handle to relieve any water pressure.
3. Disconnect the spray wand from the gun.
4. Remove the high-pressure nozzle (K) from the spray wand.
Remove any obstructions with the nozzle cleaning tool
provided and backflush with clean water.
5. Direct water supply (N) into spray wand to backflush
loosened particles for 30 seconds.
6. Reassemble the nozzle to the wand.
7. Reconnect spray wand to gun and turn on water supply.
8. Start pressure washer and place spray wand into high
pressure setting to test.

MAINTENANCE

16- ENG
11
k
N
k