14 - English
MAINTENANCE
NOTE: Drain the oil while the pump is still warm but not
hot. Warm oil will drain quickly and more completely.
Replace the oil drain plug. Tighten securely.
Remove the pump top oil plug.
Fill with 8.5 oz. (251 ml) of Cat Pumps Oil.
Type: ISO 68 Premium Grade High Pressure Pump Oil
Model AP31045 or Cat Pumps Part Number: 6201
Replace pump top oil plug and tighten securely.
NOTE: Consult hazardous waste management guidelines in
your area for the proper way to dispose of used oil.
CHECKING A FOULED SPARK PLUG
See Figure 25.
Clean carbon deposits off the spark plug electrode using
a plug cleaner or wire brush.
Check electrode gap. The gap should be .6 mm - .7 mm.
Adjust the gap, if necessary, by carefully bending the side
electrode.
Replacement spark plug: NKG E6RC, Champion L87YC
or RL87YC, or equivalent
NOZZLE MAINTENANCE
See Figure 26.
Excessive pump pressure (a pulsing sensation felt while
squeezing the trigger) may be the result of a clogged or
dirty nozzle.
Turn off the pressure washer and shut off the water
supply. Pull trigger to release water pressure.
Remove the nozzle from the spray wand.
NOTE: Never point the spray wand at your face.
Using a straightened paper clip or nozzle cleaning tool
(not provided), free any foreign materials clogging or
restricting the nozzle.
Using a garden hose, flush debris out of nozzle by back
flushing (running the water through the nozzle backwards
or from the outside to the inside).
Reconnect the nozzle to the spray wand.
Turn on the water supply and start the engine.
STORING THE PRESSURE WASHER
See Figures 27 - 28.
Store the pressure washer with the gas tank empty by running
the pressure washer until the gas runs out. Allow 30 minutes
of “cool down” time before storing the machine. Store in a
dry, covered area where the weather can’t damage it.
It is important to store this product in a frost-free area. Always
empty water from all hoses, the pump, and the detergent
container before storing.
NOTE: Use of a fuel stabilizer and pump saver will give you
better performance and increase the life of the machine.
Trigger and auxiliary handles:
Remove the auxiliary handle from the trigger handle and
store the auxiliary handle in the storage hole on the side of
the trigger handle.
Remove the spray wand from the trigger handle by turning
the connector counterclockwise. Store the unassembled
spray wand in the spray wand storage area.
Discharge Fuel:
Drain the fuel tank completely by running the pressure washer
until the gas runs out. Stored gas can go stale in 30 days.
Engine Oil:
Drain the oil and replace with fresh, clean oil.
Spark Plug:
Disconnect spark plug wire and remove the spark plug.
Pour about a teaspoon of clean, air-cooled, four-cycle
oil through the spark plug hole into the combustion
chamber.
Leaving the spark plug out, pull the starter cord two or
three times to coat the inside of the cylinder wall.
Inspect the spark plug and clean or replace, as neces-
sary.
Reinstall the spark plug, but leave the spark plug wire
disconnected.
Air Filter:
Clean the air filter.
Fuel Tank Inlet Screen:
For best performance, clean the tank’s inlet screen yearly or
after every 100 hours of use. If the screen is damaged, call
customer service to order a replacement screen.
Remove fuel tank inlet screen.
Flush with warm soapy water.
Rinse and re-install screen in tank filler neck.
Fuel Tank Outlet Filter:
Dirty tank fuel filters will cause starting difficulty, loss of per-
formance, and shorten the life span of the engine. Contact an
authorized service dealer to check and clean the tank outlet
filter yearly. For best performance, have the filter replaced
after 200 hours of use.
Hoses and Pump:
Flush the injection hose with clean water for 1-2 minutes.
Remove all hoses. Empty the pump by pulling on the recoil
starter about 6 times. This should remove most of the liquid
from the pump.
PREPARING FOR USE AFTER STORAGE
Pull the recoil starter grip three or four times to clean oil
from the combustion chamber.
Remove spark plug from the cylinder. Wipe oil from the
spark plug and return it to the cylinder.
Reconnect the spark plug wire.
Refuel the machine as described earlier in the operator’s
manual.
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