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MAINTENANCE
WARNING:
Do not change pump lubricant while it is hot. Ac-
cidental contact with hot pump lubricant could
result in serious burns.
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 SPARK PLUG
See Figure 27.
Clean the area around the base of the spark plug before
removing to keep dirt and debris out of the engine.
Remove spark plug.
Clean off carbon deposits on the spark plug electrode
using a plug cleaner or wire brush. Replace the plug if
worn or reuse is questionable. For replacement spark
plug, see Product Specifications earlier in this manual
or the accompanying engine manual, if applicable.
Check electrode gap. The gap should be 0.7 - 0.8 mm.
Adjust the gap, if necessary, by carefully bending the
ground electrode.
Check the condition of the spark plug gasket.
Reinstall spark plug. Start the spark plug in its threads
by hand and finger-tighten.
Tighten with wrench to compress washer. If spark plug
is new, use 1/2 turn to compress washer appropriate
amount. If reusing old spark plug, use 1/8 to 1/4 turn for
proper washer compression.
NOTE: An improperly tightened spark plug will become
very hot and could damage the engine.
PUMP MAINTENANCE
Routinely make a visual inspection of the pump. If you notice
any leaking of lubricant around the pump oil seals, take the
pressure washer to a qualified service center for repair.
If you notice excessive water leaks or low operating pressure,
the water seals may need to be replaced. We recommend
taking your pressure washer to a qualified service center for
repair, as service performed by inexperienced or unqualified
persons may damage the pressure washer, create unsafe
conditions, injury to user and void your warranty.
STORING THE PRESSURE WASHER
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.
WARNING:
While storing, keep at least 3 feet of clearance on
all sides of this product, including overhead. Allow a
minimum of 30 minutes of "cool down" time before
storage. Heat created by muffler and exhaust gases
could be hot enough to ignite combustible objects.
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
bucket before storing.
Drain the fuel tank completely by running the pressure
washer until the gas runs out. Stored gas can go stale in
30 days.
NOTE: Make sure the water supply is connected and
turned on when allowing the pressure washer engine to
run.
Make sure the engine switch is in the OFF position and
and fuel valve is closed.
Disconnect the water connection.
Empty the pump by pulling on the starter grip and rope
about 6 times. This should remove most of the liquid from
the pump.
NOTICE:
The use of a pump protector is required after each
use and before storing to prevent cold weather and
seal damage during storage. Failure to use pump
protector will void your warranty.
Drain the lubricant and replace with fresh, clean lubricant
as described in Changing Engine Lubricant earlier in
this manual.
Disconnect spark plug wire and remove the spark plug.
Pour about a teaspoon of clean, air-cooled, four-cycle
lubricant through the spark plug hole into the combustion
chamber.
Leaving the spark plug out, pull the starter grip and rope
two or three times to coat the inside of the cylinder wall.
Inspect the spark plug and clean or replace, as necessary.
Reinstall the spark plug, but leave the spark plug wire
disconnected.
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