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Section 3 — Maintenance
Commercial-Industrial-Residential Portable Generator System
3.3.6 REPLACING THE SPARK PLUG
Use Champion RC14YC spark plug or equivalent. The correct air gap
is 1.01 mm (0.040 in.) (Figure 18). Replace the plug once each year.
This will help the engine start easier and run better.
1. Stop the engine and pull the spark plug wire off of the spark
plug.
2. Clean the area around the spark plug and remove it from the
cylinder head.
3. Set the spark plug's gap to 1.01 mm (0.040 in.). Install the
correctly gapped spark plug into the cylinder head.
Figure 18 - Spark Plug Gap
3.4 SERVICE AIR CLEANER
The engine will not run properly and may be damaged if using a dirty
air cleaner. Clean or replace the air cleaner paper filter once a year
(Figure 19). Clean or replace more often if operating under dusty
conditions. Clean foam pre-cleaner every month or more often under
dusty conditions.
Figure 19 - Air Cleaner
Pre-Cleaner
Filter
Cover
Base
To clean or replace foam pre-cleaner:
Remove air cleaner cover, then foam pre-filter.
Wash pre-cleaner in soapy water. Squeeze pre-filter dry in clean
cloth (DO NOT TWIST).
Clean air cleaner cover before re-installing it.
To clean or replace paper air filter:
Remove air cleaner cover; then remove foam pre-filter (service if
necessary) and remove paper filter.
Clean paper filter by tapping it gently on a solid surface. If the
filter is too dirty, replace it with a new one. Dispose of the old filter
properly.
Clean air cleaner cover then slip pre-cleaner over filter. Next insert
new paper filter into the base of the air cleaner. Re-install air
cleaner cover.
NOTE:
To order a new air filter, please contact the nearest authorized
service center at 1-800-333-1322.
3.5 CLEAN SPARK ARRESTOR SCREEN
The engine exhaust muffler has a spark arrestor screen. Inspect and
clean the screen at least once each year (Figure 20). If unit is used
regularly, inspect and clean more often.
NOTE:
If using the generator on any forest-covered, brush-covered
or grass-covered unimproved land, it must equipped with a
spark arrestor. The spark arrestor must be maintained in good
condition by the owner/operator.
Clean and inspect the spark arrestor as follows:
Remove the screen retaining bracket by removing the screw.
Slide the spark arrestor screen out from the tail pipe.
Inspect screen and replace if torn, perforated or otherwise
damaged. DO NOT USE a defective screen. If screen is not
damaged, clean it with commercial solvent.
Replace the screen and the retaining bracket.
Figure 20 - Spark Arrestor
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