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CHANGING THE PUMP LUBRICANT
See Figure 24.
NOTE: The pump was filled with lubricant at the factory.
Fill the crankcase with special Cat Pumps lubricant per
pump specifications listed below. Do not run pump without
lubricant in crankcase. Change initial fill after 50 hours of
run time. Thereafter, change lubricant every 3 months or
500 hour intervals.
To check pump lubricant:
Place unit on a flat, level surface.
The sight glass is located above the drain plug. There is
a red dot in the center of the glass.
A lubricant level at the top of the red dot indicates lubri-
cant is at maximum level.
A lubricant level at or below the bottom of the red dot
indicates lubricant is below desired level, and lubricant
should be added.
To change pump lubricant:
Place a container under the pressure washer.
Loosen the pump oil cap. Remove the oil drain plug and
drain the old lubricant.
NOTE: Drain the lubricant while the pump is still warm
but not hot. Warm lubricant will drain quickly and more
completely.
Replace the oil drain plug. Tighten securely.
Remove the pump oil cap.
Fill with 8.5 oz. (251 ml) of Cat Pumps lubricant.
Type: ISO 68 Premium Grade High Pressure Pump Oil
Model AP31045 or Cat Pumps Part Number: 6201
Replace pump oil cap and tighten securely.
NOTE: Consult hazardous waste management guidelines in
your area for the proper way to dispose of used lubricant.
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: Torch E6RC (NGK BR-6HS) or
equivalent
MAINTENANCE
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.
CLEANING THE FUEL TANK INLET SCREEN
See Figure 27.
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.
NOTE: Dirty tank fuel filters will cause starting difficulty, loss
of performance, 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.
STORING THE PRESSURE WASHER
See Figure 28.
NOTE: Regular use of fuel stabilizer and pump protector
will give you better performance of the unit and increase
the life of the pump. See the Replacement Parts List for
available sizes and part numbers of these items and call
customer service to order.
Allow 30 minutes of "cool down" time before storing the
machine. Store in a dry, covered area where the weather
can't damage it.
Page 16 — English
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