Generac Power Systems 0661-5 - Manual (Page 12)

CLEAN AIR INTAKE SCREEN
Clean all foreign material from the air intake screen
(Figure 6) at lease once every 100 hours of operation.
Clean more often if necessary.
Inspect the area around the generator exhaust muffler
periodically and remove all grass, leaves, dirt, etc.
from this area.
ENGINE SPARK PLUG
Clean or replace engine spark plug and set gap to
0.030 inch (0.76mm) every 100 hours of operation
(Figure 6). Clean by scraping or wire brushing and
washing with commercial solvent. DO NOT BLAST
CLEAN SPARK PLUG.
Figure 6 — Setting Gap on Spark Plug
SET PLUG GAP AT 0.030 inch
CAUTION: Sparking can occur if wire terminal
does not fit firmly over spark plug terminal end. If
necessary, reform wire terminal to obtain a tight fit.
FUEL FILTER
Remove and replace fuel filter (Figure 7) every 100
hours of operation or once each year, whichever
occurs first.
Figure 7 — Fuel Filter
CLEANING THE GENERATOR
Keep your generator set as clean and dry as possible.
Dirt and moisture that are permitted to accumulate on
electrical windings have an adverse affect on the
insulation resistance of those windings.
Moisture that is allowed to remain in contact with
windings will be retained in voids and cracks of the
windings. Dirt makes the problem worse, since it
tends to hold the moisture into contact with the wind­
ings. Salt, as from sea air, worsens the problem since
it tends to absorb moisture from the air. The combina­
tion of salt and moisture makes a good electrical con­
ductor.
CAUTION! Do NOT use a forceful spray of water to
clean the generator. Water will enter the generator
interior and cause problems, and may also conta­
minate the generator fuel system.
BAHERY
All lead-acid storage batteries will discharge when not
in use. Inspect the generator battery as follows:
■ ONCE WEEKLY______________________
Inspect battery posts and cables for tightness, corro­
sion. Clean and/or tighten as necessary.
Also check battery fluid level, and, if necessary, fill
with DISTILLED WATER ONLY. DO NOT USE TAP
WATER IN BATTERY.
■ EVERY SIX MONTHS__________________
Have the battery state of charge and condition
checked by an automotive service facility. This should
be done with an automotive type battery hydrometer.
DANGER: Storage batteries give off explosive
hydrogen gas. This gas can form an explosive
mixture aroung the battery for several hours after
cahrging. The slightest spark can ignite gas and
cause an explosion. Such an explosion can shat­
ter the battery and cause blindness or other injury.
Any area that houses a storage battery must be
properly ventilated. Do not allow smoking, open
fiame, spards or any spark producing tools or
equipment near the battery.
DANGER: Battery electrolyte fluid is an extremely
caustic sulfuric acid solution that can cause
severe burns. Do not permit fluid to contact eyes,
skin, clothing, painted surfaces, etc. Wear protec­
tive goggles, protective clothing and gloves when
handling a battery. If you spill the fluid, flush the
affected area immediately with clear water.
DANGER: Do not use any jumper cables or boost­
er battery to crank and start the generator engine.
If any battery has discharged, remove it from the
vehicle for recharging.
SERVICE AND ADJUSTMENTS
■ ENGINE SPEED____________________
Engine speed is completely computer-controlled.
There is no adjustment for speed on the unit. The
computer adjusts the engine speed using an electron­
ic governor throttle control. The computer monitors
the demand for power and adjusts the engine speed
accordingly. This allows the engine to produce only
the power required, resulting in fuel economy as well
as lowering the overall noise emitted.
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