Generac Power Systems 0940-1 - Manual (Page 15)

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 wind­
ings will be retained in voids and cracks of the wind­
ings. Dirt makes the problem worse, since it tends to
hold the moisture into contact with the windings. Salt,
as from sea air, worsens the problem since it tends to
absorb moisture from the air. The combination of salt
and moisture makes a good electrical conductor.
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.
BATTERY
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 can form an explosive mixture
around the battery for severai hours after charg­
ing. The siightest spark can ignite the 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, sparks or any spark producing tools or
equipment near the battery.
DANGER: Battery eiectrolyte fluid is an extremely
caustic sulfuric acid solution that can cause
severe burns. Do not permit fluid to contact eyes,
skin, ciothing, painted surfaces, etc. Wear protec­
tive goggles, protective ciothing and gioves when
handiing 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 tuel economy as well
as lowering the overall noise emitted.
NOTE; The computer will disable the electrical load
capabilities of the generator and enter a fault condi­
tion if you accelerate the throtile manually or any
other way.
THROTTLE LINKAGE ADJUSTMENT
If needed, you can adjust the length of the linkage rod
between the electronic governor lever arm and the
carburetor throttle lever arm. This adjustment helps to
establish the proper travel relationship between the
two lever arms. Ir this adjustment is not properly set,
the computer will NOT have control of the full range of
engine speed. If the rod adjustment is set too snort,
the computer will not have access to wide open throt­
tle or “full power” conditions. If the rod adjustment is
set too long, the computer will not have access to
closed throttle or “no power” conditions.
Use the following procedure to assure the linkage rod
is properly adjusted:
1. Start the generator, then shut it down right away. As the
engine coasts to a stop, observe from above the engine
as the throttle lever on the carburetor rotates counter­
clockwise.
2.There should be
between stop tab on throttle lever arm and the stop block
on the carburetor die casting (Figure 9).
a gap of 0.003 inch (0.08-0.5mm)
tnrotti
Figure 9 — Gap Between Stop Tab
and Stop Block
TOP VIEW OF
THROnUE
LEVER ARM
THROTTLE
'LEVER ARM
MAINTAIN A MINIMUM
6AP0F0.003‘
(0.0t-0.5MM)
CAUTION: Do not overbend the spring clip or the
clip will lose its clamping force.
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