Cooling System; Attention After Submersion; Corrosion Protection; Out Of Service Procedure - Generac Power Systems 7kW Installation And Owner's Manual

• Re-attach the spark plug wire to the spark plug.
• On the GT-530 and GT-990, repeat the process for
the other cylinder.
Figure 4.10 - Valve Clearance Adjustment
Pivot Ball
Stud
Jam Nut
4.8

COOLING SYSTEM

Air inlet and outlet openings in the generator com-
partment must be open and unobstructed for con-
tinued proper operation. This includes such obstruc-
tions as high grass, weeds, brush, leaves and snow.
Without sufficient cooling and ventilating air flow, the
engine/generator quickly overheats, which causes it
to quickly shut down. (See Figure 4.11 for vent loca-
tions.)
Make sure the doors and roof are in place dur-
ing operation as running the generator with them
removed can effect cooling air movement.
Figure 4.11 – Cooling Vent Locations
Air
Outlet
Rocker
Arm
Valve
Stem
Air Intake
Section 4 — Maintenance
Air-cooled Generators

The exhaust from this product gets extremely
hot and remains hot after shutdown. High grass,
weeds, brush, leaves, etc. must remain clear of
the exhaust. Such materials may ignite and burn
from the heat of the exhaust system.

The maximum ambient temperature for the gen-
erator is 40° C (104° F).
4.9

ATTENTION AFTER SUBMERSION

If the generator has been submerged in water, it must
not be started and operated. Following any submer-
sion in water, have an Authorized Dealer thoroughly
clean, dry and inspect the generator. If the structure
(ex. home) has been flooded, it should be inspected
by a certified electrician to ensure there won't be any
electrical problems during generator operation or
when utility is returned.

4.10 CORROSION PROTECTION

Periodically wash and wax the enclosure using auto-
motive type products. Frequent washing is recom-
mended in salt water/coastal areas. Spray engine
linkages with a light oil such as WD-40.

4.11 OUT OF SERVICE PROCEDURE

4.11.1 REMOVAL FROM SERVICE
If the generator cannot be exercised every seven days,
and will be out of service longer than 90 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. Once the unit has shut down, it will signal a low
oil fault.
4. Set the generator's main circuit breaker to its
OFF (or OPEN) position.
5. Set the AUTO/OFF/MANUAL switch to OFF and
turn off the utility power to the transfer switch.
Remove the 15A fuse from the generator control
panel. Disconnect the battery cables as outlined
in "General Hazards".
6. While the engine is still warm from running,
drain the oil completely. Refill the crankcase with
oil. See "Engine Oil Recommendations".
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