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Generac
®
Power Systems, Inc.
• Do not lay tools or metal parts on top of the
battery;
• Disconnect any charging source prior to connecting
or disconnecting battery terminals; and
• Do not use any jumper cables or booster battery to
crank and start the generator engine. If any battery
has discharged, remove it for recharging.
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;
• Where electrolyte contacts the skin, wash it off
immediately with water;
• Where electrolyte contacts the eyes, flush
thoroughly and immediately with water and seek
medical attention; and
• 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) or 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.
3.9
MAJOR SERVICE MANUAL
To obtain a service manual for your generator, con-
tact Generac or your nearest Generac Authorized
Service Dealer (1-800-333-1322). Make sure to iden-
tify your MODEL NUMBER and SERIES. Manuals
can be obtained from the internet website or a service
dealer.
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 you suspect that drive belt tension
is incorrect, contact a Generac Authorized Service
Dealer.
3.11 EXERCISING THE GENERATOR
Generac recommends that you start and operate the
generator at least once every seven days. Let
the unit run for at least 30 minutes to “exercise”
the engine.
3.12 RETORQUE THE HEAD BOLTS
After the first 50 hours of operation, you must
retorque the head bolts 3.3 kg.-m (22 ft.-lbs.).
IMPORTANT: If you feel uncomfortable about doing
this procedure or you don’t have the proper tools,
please take your engine in to the nearest service cen-
ter to have the head bolts re-torqued. This is a very
important step to insure the longest life for your
engine.
NOTE:
Only perform this adjustment after the first 50
hours of operation. The head bolts will need no
further adjustment.
1. Remove the four (4) bolts from the rocker cover.
2. Remove the rocker cover and rocker cover gas-
ket.
3. Torque the bolts to 3.0 kg-m. (22 ft.-lb.)
Figure 3.7 — Retorque Head Bolts
3.13 OUT OF SERVICE PROCEDURE
3.13.1 REMOVAL FROM SERVICE
If you cannot exercise the generator every seven days,
and it is to be out of service longer than 30 days, pre-
pare the generator for storage as follows:
1. Start the engine and let it warm up.
2. Close the fuel shutoff valve in the fuel supply line
and allow the unit to shut down.
3. While the engine is still warm from running,
drain the oil completely. Refill the crankcase with
SAE 5W-30 oil having API classification “For
Service SF.”
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Section 3 – Maintenance
QUIETPACT 50 and 70 Recreational Vehicle Generators
