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17 - ENG
ENGINE
Consult the Engine Owner's 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 (FIG. 12)
NOTE: The Pump was filled with oil at the factory. The preferred oil is SIMPSON
®
Premium Pump Crankcase Oil. If this oil is not available, an SAE 15W-40 oil may
be used. Change the pump oil after the first 50hours of operation and every 100
hours thereafter, or every 3months.
TO CHECK OIL
The oil level should come to the dot in the middle
12
BB
AA
CC
of the sight glass (AA).
HOW TO CHANGE PUMP OIL
1. Loosen pump oil fill plug (BB).
2. Place a container under the pump oil drain
plug (CC).
3. Remove pump oil drain plug.
4. After oil is drained, replace pump oil drain plug. Tighten securely.
5. Refill pump using SIMPSON
®
Premium Pump Crankcase Oil. If this oil is not
available, an SAE 15W-40 oil may be used.
6. Replace pump oil fill plug and tighten securely.
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. 13)
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.
13
K
K
N
Remove any obstructions with the nozzle cleaning tool
provided and backflush with clean water.
5. Direct water supply (N) into nozzle 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.
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