Owner`s manual

CHANGING ENGINE OIL
Refer to maintenance performed by authorized ser-
vice facilities for engine oil and filter change frequen-
cies.
Drain the oil while the engine is still warm from run-
ning. This means warm up the engine, shut it down
and drain immediately as follows:
1. Remove OIL DRAIN HOSE from its retaining
clip.
2. Loosen and remove OIL DRAIN HOSE CAP. Drain
oil completely into suitable container.
3. When all oil has drained, install and tighten OIL
DRAIN HOSE CAP, and re-install into its retaining
clip.
4. Turn OIL FILTER (Figure 10.1) counterclockwise
and remove. Properly dispose of old filter.
5. Apply light coating of new engine oil to seal of new
oil filter.-Install FILTER and tighten by hand only.
DO NOT OVER TIGHTEN.
6. Remove OIL FILL CAP. Add recommended oil (see
SPECIFICATIONS). DO NOT FILL ABOVE THE
DIPSTICK “FULL” MARK. Crankcase oil capacity
is 4.0 U.S. quarts (3.8 liters).
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After refilling the crankcase with oil, always
check oil level on dipstick. NEVER OPERATE
ENGINE WITH OIL BELOW THE DIPSTICK “ADD”
MARK.
7. Start engine and check for oil leaks.
CHANGING THE ENGINE AIR CLEANER
To replace the engine air cleaner, simply remove the
air cleaner cover and replace the air filter making
sure it is positioned properly before reattaching the
cover (Figure 10.1).
See the “Service Schedule,” for air cleaner mainte-
nance.
SPARK PLUGS
Reset the spark plug gap or replace the spark plugs
as necessary (Figure 10.2).
1. Clean the area around the base of the spark plugs
to keep dirt and debris out of the engine. Clean
by scraping or washing using a wire brush and
commercial solvent. Do not blast the spark plugs
to clean.
2. Remove the spark plugs and check the condi-
tion. Replace the spark plugs if worn or if reuse
is questionable. See the “Service Schedule” for
recommended inspection.
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3. Check the spark plug gap using a wire feeler
gauge. Adjust the gap to 1.07-1.17 mm (0.042-
0.046 inch) by carefully bending the ground elec-
trode (Figure 10.2).
Figure 10.2 – Setting the Spark Plug Gap
COOLANT CHANGE
Every year, have an Authorized Service Facility drain,
flush and refill the cooling system. See “Specifications”
for cooling system recommendations.
MISCELLANEOUS MAINTENANCE
CLEANING THE GENERATOR
Keep the generator as clean and as dry as possible.
Dirt and moisture that accumulates on internal gen-
erator windings have an adverse effect on insulation
resistance.
Periodically clean generator exterior surfaces. A soft
brush may be used to loosen caked on dirt. Use a
vacuum system or dry, low pressure air to remove
any accumulations of dirt. The generator is housed
inside an all-weather enclosure, clean the enclosure
with a soft, damp cloth or sponge and water.
Once each year have the generator cleaned and
inspected by an Authorized Service Dealer. That
dealer will use dry, low pressure air to clean internal
windings. Parts inside the control console should be
cleaned and inspected at this time as well.
Finally, have the insulation resistance of stator and
rotor windings checked. If insulation resistances are
excessively low, the generator may require drying.
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Standby Generator Sets
Maintenance
10-3
Maint005 Rev. B 08/06
SET PLUG GAP AT 1.07 - 1.17 mm
(0.042 - 0.046 inch)