Generac Power Systems 0j2083, Owner'S Manual

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Figure 4.5 — 8 KVA Engine Air Cleaner
Air Filter
4.5 SPARK PLUG(S)
Reset the spark plug(s) gap or replace the spark plug(s) as neces-
sary. See the Service Schedule section for maintenance require-
ments.
1. Clean the area around the base of the spark plug(s) to keep
dirt and debris out of the engine.
2. Remove the spark plug(s) and check the condition. Replace
the spark plug(s) if worn or if reuse is questionable. See the
Service Schedule section for recommended inspection. Clean
by scraping or washing using a wire brush and commercial
solvent. Do not blast the spark plug(s) to clean.
3. Check the spark plug gap using a wire feeler gauge. Adjust the
gap to 0.76 mm (0.030 inch) for 8 KVA and 1.02 mm (0.040
inch) for 10 and 13 KVA by carefully bending the ground
electrode (Figure 4.6).
Figure 4.6 – Setting the Spark Plug Gap
4.6 BATTERY MAINTENANCE
The battery should be inspected per the "Service Schedule" sec-
tion. The following procedure should be followed for inspection:
1. Inspect the battery posts and cables for tightness and corro-
sion. Tighten and clean as necessary.
2. Check the battery fluid level of unsealed batteries and, if nec-
essary, fill with Distilled Water Only. Do not use tap water in
batteries.
3. Have the state of charge and condition checked. This should
be done with an automotive-type battery hydrometer.


Do not dispose of the battery in a fire. The
battery is capable of exploding.

A battery presents a risk of electrical shock
and high short circuit current. The following
precautions are to be observed when work-
ing on batteries:
• Remove the 7.5A fuse from the generator con-
trol panel.
• Remove watches, rings or other metal objects.
• Use tools with insulated handles.
• Wear rubber gloves and boots.
• Do not lay tools or metal parts on top of the
battery.
• Disconnect charging source prior to connecting
or disconnecting battery terminals.

Do not open or mutilate the battery.
Released electrolyte has been known to
be harmful to the skin and eyes, and to be
toxic.

The electrolyte is a dilute sulfuric acid that
is harmful to the skin and eyes. It is electri-
cally conductive and corrosive. The follow-
ing procedures are to be observed:
• Wear full eye protection and protective clothing.
• Where electrolyte contacts the skin, wash it off
immediately with water.
• Where electrolyte contacts the eyes, flush thor-
oughly and immediately with water and seek
medical attention.
• Spilled electrolyte is to be washed down with
an acid neutralizing agent. A common practice
is to use a solution of 1 pound (500 grams)
bicarbonate of soda to 1 gallon (4 liters) of
water. The bicarbonate of soda solution is to
be added until the evidence of reaction (foam-
ing) has ceased. The resulting liquid is to be
flushed with water and the area dried.
 Lead-acid batteries present a risk of fire
because they generate hydrogen gas. The
following procedures are to be followed:
• DO NOT SMOKE when near the battery.
• DO NOT cause flame or spark in battery area.
• Discharge static electricity from body before
touching the battery by first touching a ground-
ed metal surface.

Be sure the AUTO/OFF/MANUAL switch is
set to the OFF position before connecting
the battery cables. If the switch is set to
AUTO or MANUAL, the generator can crank
and start as soon as the battery cables are
connected.
Maintenance