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Before starting the generator for the first time, the
installer must complete the following procedures. For
follow-up maintenance information and/or service
intervals, please refer to Section 4, "Maintenance,"
and the "Service Schedule" on Page 17.
Transfer Switch
If this generator is used to supply power to any elec-
trical system normally powered by an electric utility,
the National Electrical Code requires that a transfer
switch be installed. The transfer switch prevents elec-
trical backfeed between two different electrical sys-
tems. (For additional information, see the applicable
transfer switch manual for this unit.) The transfer
switch, as well as the generator and other standby
components, must be properly located and mounted
in strict compliance with applicable codes, standards
and regulations.
Fuel System
Make sure the fuel supply system to the generator (a)
delivers the correct fuel at the correct pressure and
(b) is properly purged and leak tested according to
code.
No
fuel
leakage
"Specifications" (Page 7) for more information.
If the unit has been idle for a long period of time, or
if the fuel lines or system components have been
removed and reinstalled, the fuel system may require
bleeding to remove air from the system. Air in the
fuel system causes hard starting and rough opera-
tion. All fuel system lines must be installed and must
be tight. A loose line may show no sign of leakage, but
may draw air into the system.
Use a suitable container to catch the fuel that
!
will spill during system bleeding process. Clean
up all spilled fuel after bleeding.
Generator Set Lubrication
Check the engine crankcase oil level before operating
and add oil to the proper level – the dipstick "FULL "
mark. Never operate the engine with the oil level
below the dipstick "ADD" mark. See "Specifications"
(Page 7) and "Engine Oil Recommendations" (Page 8).
This engine is shipped from the manufacturer
with "break-in" oil. This oil should be changed
after 30 hours of operation.
Check the oil level in the generator gearbox (if so
equipped) prior to initial use and at the intervals
indicated by the "Service Schedule." The recom-
mended oil is SAE 90 gear lubricant.
Also, if the engine is equipped with a mechanical gov-
ernor, make sure the governor is properly lubricated
with clean engine oil.
is
permitted.
NOTE:
Section 2 – Installation
Generac Standby Generator Sets
Engine Coolant
Have the engine cooling system properly filled with
the recommended coolant mixture. Check the system
for leaks and other problems. See "Specifications"
(Page 7) and "Coolant" (Page 8).
Belt Tension
Check the engine fan belt tension and condition prior
to placing the unit into service and at recommended
intervals. Belt tension is correct when a force of
approximately 22 pounds (10 kg), applied midway
between pulleys, deflects the belt about 3/8- to 5/8-
inch (10 to 16 mm).
Electrical System
Make sure the generator is properly connected to an
approved earth ground.
Make sure the generator battery is fully charged,
properly installed and interconnected, and ready for
use.
Check to ensure that there are no loose electrical con-
See
nections. Restrain any loose wires to keep them clear
of any moving generator set components.
Rodent Protection
• Make sure the four 3-inch diameter cap plugs (part
no. 0A8785) are properly installed in the tie-down
holes in the side rails of the unit's base frame
(Figure 2.4). The cap plugs are shipped in a plas-
tic bag located in the lower connection box. These
plugs are needed to prevent rodents from access-
ing the interior of the generator set. On acoustic
units, cap plugs also are needed to stay within
noise specification limits.
Figure 2.4 – Base Frame Cap Plugs
Generac
®
Power Systems, Inc. 15
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