Inspecting Air Filter; Inspecting Spark Plug; Removing And Replacing Front Tires - Generac Power Systems Powerwagon Owner's Manual

Maintenance and Troubleshooting

Inspecting Air Filter

WARNING
Explosion and fire. Never clean air filter element
with gasoline or low flash-point detergents.
Doing so could result in death, serious injury,
or equipment damage.
Proceed as follows to service the air filter.
1. See Figure 4-4. Remove air cleaner cover (A). Do
not allow dirt or debris to fall into air cleaner base
opening.
B
A
Figure 4-4. Air Cleaner Assembly
2. Remove foam or paper element (B).
3. Inspect and clean or replace any damaged air
cleaner parts.
NOTE: Clean foam element with soapy water. Blow
paper element with compressed air or lightly tap off dust.
Never attempt to brush element.
4. Install the air cleaner.

Inspecting Spark Plug

IMPORTANT NOTE: Use only the recommended
spark plug, or equivalent. Incorrect heat range of
spark plug may damage engine.
The spark plug gap must be correct with no deposits or
corrosion around the spark plug. Proceed as follows to
inspect and, if necessary, replace the spark plug.
1. Remove spark plug cap.
2. Clean around spark plug base with a clean, lint free
cloth.
3. Remove spark plug.
4. Inspect spark plug. Clean with a steel brush. If
insulator is damaged, replace spark plug.
5. See Figure 4-5. Measure spark plug clearance
with a feeler gauge. Clearance should be approxi-
mately 0.019–0.028 in (0.5–0.7 mm). Bend the
side electrode carefully if adjustment is necessary.
22
(000580)
6. To avoid cross-threading, screw in spark plug by
hand, then tighten with a spark plug wrench to
compress the gasket.
IMPORTANT NOTE: Tighten spark plug securely to
prevent overheating.
NOTE: If installing a new spark plug, do not tighten more
than one half turn after the gasket is compressed.
NOTE: If installing the old spark plug, do not tighten
more than 1/8–1/4 turn after the gasket is compressed.
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Removing and Replacing Front Tires

Tipping hazard. Properly support the unit when
jacking. Failure to do so could result in death,
serious injury, property or equipment damage.
1. See Figure
Support front of frame with jack stands to lift tires
off the ground.
NOTE: Verify jack stands are not touching tires.
2. See Figure
screwdriver. Remove washer and tire. Verify key is
in axle.
Figure 4-5. Spark Plug Gap
WARNING
4-6. Place unit on a firm, level surface.
Figure 4-6. Unit on Jack Stands
4-7. Remove tire retaining ring (A) with
Owner's Manual for Powerwagon
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006180