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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 electrically
conductive and corrosive. The following
procedures are to be observed:
• Wear full eye protection and protective clothing;
• Immediately wash with water all skin areas that
come into contact with the electrolyte.
• If the electrolyte contacts the eyes, immediately
flush eyes thoroughly with water, and seek med-
ical 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 bicar-
bonate 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.
3.7
COOLING SYSTEM
Air intake and outlet openings in the generator com-
partment must be open and unobstructed for contin-
ued proper operation. Avoid obstructions, such as,
high grass, weeds, brush, leaves, and snow.
Without sufficient cooling and ventilating air flow, the
engine/generator quickly overheats, which causes it
to shut down.
3.8
ENGINE COOLANT
Check the coolant level in the coolant recovery tank
at least once daily or prior to use. Add the recom-
mended coolant mixture (see Section 1.5.4), as nec-
essary; the tank should be kept within the levels indi-
cated on the adjacent decal. If desired, a high-quality
rust inhibitor to the recommended 50-50 coolant
mixture may be added. If added consistently, the rec-
ommended mixture will protect the unit against
freezing temperatures.
Periodically remove the radiator pressure cap, locat-
ed behind the access cover above the user control
panel, to make sure the coolant recovery system is
functioning properly. Coolant should be at the bottom
of the radiator filler neck. If the coolant level is low,
inspect the gasket in the radiator pressure cap.
Replace the cap, if necessary. To have the pressure
cap tested, contact a Generac Authorized Service
Dealer. Inspect both the cooling system and coolant
recovery system for leaks.
14 Generac
®
Power Systems, Inc.
Section 3 – Maintenance
QUIETPACT™ 75D Recreational Vehicle Generator
DANGER
Do not remove the radiator pressure cap while
!
the engine is hot; otherwise, serious burns
from boiling liquid or steam could result.
Ethylene glycol base antifreeze is poisonous.
!
Do not use mouth to siphon coolant from the
radiator, recovery bottle, or any container.
Wash hands thoroughly after handling. Never
store used antifreeze in an open container
because animals are attracted to the smell and
taste of antifreeze, even though it is poisonous
to them.
Do not use any chromate base rust inhibitor
!
with ethylene glycol base antifreeze; other-
wise, chromium hydroxide ("green slime") will
form and cause overheating. Engines that have
been operated with a chromate base rust
inhibitor must be chemically cleaned before
adding ethylene glycol base antifreeze. Using
any high-silicate antifreeze boosters or addi-
tives will also cause overheating. DO NOT use
any soluble oil inhibitor for this equipment.
3.9
MAJOR SERVICE MANUAL
To obtain a service manual for the generator, the
nearest Generac Authorized Service Dealer. Make
sure to identify the MODEL NUMBER and SERIES.
3.10 DRIVE BELT
The engine drives the generator rotor by means of a
pulley and drive belt arrangement. Drive belt tension
was properly adjusted before the unit was shipped
from the factory. If suspect that drive belt tension is
incorrect, contact a Generac Authorized Service
Dealer.
3.11 EXERCISING THE GENERATOR
At least once every seven days, start and operate the
generator. Let the unit run for at least 30 minutes to
"exercise" the engine. If the generator cannot be exer-
cised every seven days, and it is to be out of service
longer than 30 days, see Section 3.12.
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