Generac Power Systems 005240 - Manual (Page 27)

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Section 4 — Maintenance
Air-cooled Generators
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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".
7. Attach a tag to the engine indicating the viscosity
and classification of the oil in the crankcase.
8. Remove the spark plug(s) and spray fogging
agent into the spark plug(s) threaded openings.
Reinstall and tighten the spark plug(s).
9. Remove the battery and store it in a cool, dry
room on a wooden board. Never store the battery
on any concrete or earthen floor.
10. Clean and wipe the entire generator.
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4.11.2 RETURN TO SERVICE
To return the unit to service after storage, proceed
as follows:
1. Verify that utility power is turned off and that the
AUTO/OFF/MANUAL switch is set to OFF.
2. Check the tag on the engine for oil viscosity and
classification. Verify that the correct recommend-
ed oil is used in the engine (see the Engine Oil
Recommendations section). If necessary, drain
and refill with the proper oil.
3. Check the state of the battery. Fill all cells of
unsealed batteries to the proper level with dis-
tilled water. DO NOT USE TAP WATER IN THE
BATTERY. Recharge the battery to 100 percent
state of charge, or, if defective, replace the battery.
See “Specifications,” for type and size.
4. Clean and wipe the entire generator.
5. Make sure the 15A fuse is removed from the
generator control panel. Reconnect the battery.
Observe battery polarity. Damage may occur if the
battery is connected incorrectly.
6. Open the fuel shutoff valve.
7. Insert the 15A fuse into the generator control
panel. Start the unit by moving the AUTO/OFF/
MANUAL switch to MANUAL. Allow the unit to
warm up thoroughly.
8. Stop the unit by setting the AUTO/OFF/MANUAL
switch to OFF.
9. Turn on the utility power to the transfer switch.
10. Set the AUTO/OFF/MANUAL switch to AUTO.
11. The generator is now ready for service.
NOTE:
If the battery was dead or disconnected, the exer-
cise timer must be reset.
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