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3.3.2 TO CLEAN THE GENERATOR
Use a damp cloth to wipe exterior surfaces clean.•
A soft, bristle brush may be used to loosen caked on dirt, oil, •
etc.
A vacuum cleaner may be used to pick up loose dirt and •
debris.
Low pressure air (not to exceed 25 psi) may be used to •
blow away dirt. Inspect cooling air slots and openings
on the generator. These openings must be kept clean and
unobstructed.
3.3.3 ENGINE MAINTENANCE
DANGER
When working on the generator, always
disconnect spark plug wire from spark plug and
keep wire away from spark plug.
3.3.4 CHECKING OIL LEVEL
See the “Before Starting the Generator” section for information on
checking the oil level. The oil level should be checked before each
use, or at least every eight hours of operation. Keep the oil level
maintained (Figure 11).
Figure 11 - Oil Drain, Check & Fill
Oil Drain
Oil Check & Fill
3.3.5 CHANGING THE OIL
Change the oil after the first eight hours of operation, then every 20
hours thereafter. If running this unit under dirty or dusty conditions,
or in extremely hot weather, change the oil more often.
Hot oil may cause burns. Allow engine to cool
before draining oil. Avoid prolonged or repeated
skin exposure with used oil. Thoroughly wash
exposed areas with soap.
Use the following instructions to change the oil while the engine
is still warm:
Clean area around oil drain plug.•
Remove oil drain plug from engine and oil fill plug to drain oil •
completely into a suitable container.
When oil has completely drained, install oil drain plug and •
tighten securely.
Fill engine with recommended oil. (See “Before Starting the •
Generator” for oil recommendations).
Wipe up any spilled oil.•
Dispose of used oil at a proper collection center.•
3.3.6 REPLACING THE SPARK PLUG
Use spark plug F6TC, NGK BPR4ES or Champioin RN14YC.
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 0.70-0.80 mm (0.028-0.031 in.).
Install the correctly gapped spark plug into the cylinder head
and torque to 15 ft/lbs. (Figure 12).
Figure 12 - Spark Plug Gap
3.3.7 SPARK ARRESTOR
1. Shut off generator and allow the engine and muffler to cool
down completely before servicing spark arrestor (located on
the back of the muffler).
2. Remove the clamp and spark arrestor screen.
3. Clean the spark arrestor screen with a small wire brush.
4. Replace the spark arrestor if it is damaged.
5. Installation of the spark arrestor screen is the reverse of the
removal.
3.4 SERVICE AIR FILTER
The engine will not run properly and may be damaged if using a
dirty air filter. Clean the air filter once a year (Figure 13). Clean or
replace more often if operating under dusty conditions.
Remove air filter cover.•
Wash in soapy water. Squeeze filter dry in clean cloth (DO NOT •
TWIST).
Clean air filter cover before re-installing it.•
Section 3 — Maintenance
Portable Generator System