RIDGID RD80944 Manual Del Operador página 21

MAINTENANCE
 Reinstall the foam filter.
NOTE: Make sure the filter is seated properly inside the
compartment. Installing the filter incorrectly will allow dirt
to enter the engine, causing rapid engine wear.
 Reinstall the filter cover.
CHANGING ENGINE LUBRICANT
See Figure 24.
 Shut off the engine.
 Clean the area around the oil fill cap/dipstick, then remove
the oil fill cap/dipstick.
 Disconnect the spark plug wire from the engine.
 To drain the lubricant, remove the drain plug from the bot-
tom of the engine. Drain lubricant into approved container.
NOTE: Remove the dipstick to allow lubricant to drain
easier and more quickly.
NOTE: Drain the lubricant while the engine is still warm
but not hot. Warm lubricant will drain quickly and more
completely.
WARNING:
Do not change engine lubricant while it is hot. Ac-
cidental contact with hot engine lubricant could
result in serious burns.
 Fill with lubricant following the instructions in Adding/
Checking Engine Lubricant earlier in this manual. For
amount of lubricant needed to refill, see Product Specifi-
cations earlier in this manual or the accompanying engine
manual, if applicable.
 Before using the pressure washer, check to ensure that
no lubricant is leaking from the engine.
NOTE: Used lubricant should be disposed of at an approved
disposal site. See your local oil retailer for more information.
CHANGING THE PUMP LUBRICANT
See Figure 25.
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 SPARK PLUG
See Figure 26.
 Clean the area around the base of the spark plug before
removing to keep dirt and debris out of the engine. Re-
move 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 0.6 - 0.7 mm
in. 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.
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.
17 - English