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Section 3 — Maintenance
NOTE:
DO NOT use a garden hose to clean generator. Water can enter
the engine fuel system and cause problems. In addition, if water
enters the generator through cooling air slots, some water will
be retained in voids and crevices of the rotor and stator winding
insulation. Water and dirt buildup on the generator internal
windings will eventually decrease the insulation resistance of
these windings.
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 negative cable from battery. Also
disconnect spark plug wires 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.
3.3.5 CHANGING THE OIL AND OIL FILTER
Change the oil and filter after the first eight hours of operation.
Change the oil every 200 hours thereafter. If running this unit under
dirty or dusty conditions, or in extremely hot weather, change the oil
more often.
NOTE:
Whenever possible, run engine for approximately 5 minutes to
get the engine oil hot. This will aid in draining the oil.
Use the following instructions to change the oil while the engine
is still warm:
Clean area around oil drain hose and plug.
Remove oil drain plug from end of hose and oil fill plug to drain oil
completely into a suitable container.
When oil has completely drained, install oil drain plug and tighten
securely.
Place a suitable container beneath the oil filter and turn
filter counterclockwise to remove. Discard according to local
regulations.
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Coat gasket of new filter with clean engine oil. Turn filter clockwise
until gasket contacts lightly with filter adapter. Then tighten an
additional 3/4 turn.
Fill oil sump with recommended oil. (See “Before Starting the
Generator” for oil recommendations).
Wipe up any spilled oil.
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.). 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.
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
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Base
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