Generac Power Systems 004812-3, Owner'S Manual

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Section 4 – Maintenance
Standby Generator Sets
4.2.1 TEST STANDBY GENERATOR SYSTEM
OPERATION AND COMPONENTS
An authorized operator should test the operation
of the standby generator system and inspect its
components monthly (or 100 hours). This should
include inspecting the transfer switch for evidence
of arcing, and pitted or burned contacts, inspecting
wiring and grounding connections (see “Grounding
the Generator,” Section 2.5) and ensuring that start-
ing devices are operational. During this operational
test, all instrument and gauge readings should be
recorded in a “Maintenance Log.” The transfer system
also should be tested at this time. The engine should
be run at least 30 minutes and any discrepancies cor-
rected immediately.
Every six months (or 200 hours), an Authorized
Service Technician should perform a system opera-
tional test.
4.2.2 INSPECT BATTERY
DANGER

Standby generators installed with automatic
transfer switches will crank and start automati-
cally when NORMAL (UTILITY) source voltage is
removed or is below an acceptable preset level.
To prevent such automatic start-up and pos-
sible injury to personnel, do not connect battery
cables until certain that normal source voltage
at the transfer switch is correct and the system
is ready to placed into operation.

Storage batteries give off explosive hydrogen
gas. This gas can form an explosive mixture
around the battery for several hours after charg-
ing. The slightest 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 smok-
ing, open flame, sparks or any spark producing
tools or equipment near the battery.

Battery electrolyte fluid is an extremely caus-
tic sulfuric acid solution that can cause severe
burns. Do not permit fluid to contact eyes, skin,
clothing, painted surfaces, etc. Wear protective
goggles, protective clothing and gloves when
handling a battery. If fluid is spilled, flush the
affected area immediately with clear water.

Spilled electrolyte is to be washed down with
an acid neutralizing agent. A common practice
is to use a solution of one pound (500 grams)
bicarbonate of soda to one gallon (4 liters) of
water. The bicarbonate of soda solution is to be
added until the evidence of reaction (foaming)
has ceased. The resulting liquid is to be flushed
with water and the area dried.
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
Do not dispose of the battery in a fire. The
battery is capable of exploding.

Do not open or mutilate the battery. Released
electrolyte can be toxic and harmful to the skin
and eyes.

The battery represents a risk of high short circuit
current. When working on the battery, always
remove watches, rings or other metal objects,
and only use tools that have insulated handles.
An authorized operator should inspect the engine
battery system monthly (or at every 100 hour inter-
vals). At this time, the battery fluid level should be
checked and distilled water added if needed. Battery
cables and connections also should be inspected for
cleanliness and corrosion.
Once every six months (or at every 200 hour inter-
vals), an Authorized/Certified Service Technician
should inspect the battery system. At this time the
battery condition and state of charge should be
checked using a battery hydrometer. The battery
should be recharge or replaced as required.
4.2.3 BATTERY REPLACEMENT
When replacing batteries, use the same number and
the following type batteries.
NOTE:
The BCI number should be located directly
on the battery. For more information, see
“Specifications.”
4.2.4 CHECK FLUIDS
An authorized operator should check the levels
of engine oil, and engine coolant monthly (or 100
hours). The oil level should be maintained between
the “FULL” and “ADD” marks on the engine dipstick.
Recommended fluids are listed in Section 1.6 of this
manual.
4.2.5 INSPECT EXHAUST SYSTEM
Every three months (or 120 hours), an authorized
operator should inspect the entire exhaust system.
Abnormal noise levels heard during each operational
test may indicate a defective exhaust pipe or muf-
fler. Any defective or leaking component should be
repaired or replaced immediately by an Authorized
Service Technician.
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14
Part No. BCI Group No. CCA
058665 27F 700 @ 0 deg. F