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Maintenance
30 Owner’s Manual for 60 Hz Air-Cooled Generators
be any electrical problems during generator operation or
when utility power is returned.
Corrosion Protection
Regular scheduled maintenance should be conducted to
perform a visual inspection of the unit for corrosion.
Inspect all metal components of the generator, including
the base frame, brackets, alternator can, the entire fuel
system (inside and outside of the generator), and
fastener locations. If there is corrosion found on
generator components (e.g. regulator, engine/alternator
mounts, fuel plenum, etc.), replace parts as necessary.
Periodically wash and wax the enclosure using
automotive type products. Do not spray the unit with a
hose or power washer. Use warm, soapy water and a soft
cloth. Frequent washing is recommended in salt water/
coastal areas. Spray engine linkages with a light oil such
as WD-40.
Remove From, and Return To
Service Procedure
Remove From Service
If the generator cannot be exercised monthly, at a
minimum, and will be out of service longer than 90 days,
proceed as follows to prepare the generator for storage:
1. Start the engine and let it warm up.
2. Close the fuel shutoff valve in the fuel supply line
and allow the engine to stop.
3. Once the engine has stopped, set the generator
MLCB (generator disconnect) to OFF (OPEN).
4. Turn off the utility power to the transfer switch.
5. See Figure 4-1. Remove battery charger AC input
T1/Neutral cable (has white sleeve) at controller.
6. Remove the 7.5 amp fuse from the generator’s
control panel.
7. Disconnect the battery cables. Remove the
negative cable first.
8. Drain the oil completely while the engine is still
warm, and then refill the crankcase with oil.
9. Attach a tag to the engine indicating the viscosity
and classification of the new oil in the crankcase.
10. Remove the spark plug(s) and spray a fogging
agent into the spark plug(s) threaded openings.
Reinstall and tighten the spark plug(s) to
specification.
11. Remove the battery and store it in a cool, dry room
on a wooden board.
12. Clean and wipe down the entire generator.
Return to Service
Proceed as follows to return the unit to service after
storage:
1. Verify utility power is off.
2. Check the tag on the engine for oil viscosity and
classification. Drain and refill with proper oil, if
necessary.
3. Check the state of the battery. Fill all cells of
unsealed batteries to the proper level with distilled
water. DO NOT use tap water. Recharge the
battery to 100% state of charge. Replace the
battery if defective.
4. Clean and wipe down the entire generator.
5. Verify that the 7.5 amp fuse is removed from the
generator control panel.
6. Reconnect the battery. Observe battery polarity.
Damage may occur if the battery is connected
incorrectly. Install positive cable first.
7. Reconnect the battery charger AC input T1/Neutral
cable (white sleeve) at controller.
8. Open the fuel shutoff valve.
9. Insert the 7.5 amp fuse into the generator control
panel.
10. Press the MANUAL button to start the unit. Allow
the unit to warm up for a few minutes.
11. Complete the Installation Wizard information.
12. Press the control panel OFF button to stop the unit.
13. Turn on the utility power to the transfer switch.
14. Set the control panel to AUTO.
The generator is ready for service.
NOTE: The exercise timer and current date and time
must be reset when a battery is dead or has been
disconnected.
WARNING
Explosion. Batteries emit explosive gases.
Always disconnect negative battery cable
first to avoid spark. Failure to do so could
result in death or serious injury.
(000238)
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