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Power Systems, Inc. 21
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
generator is 40° C (104° F).
4.10 ATTENTION AFTER SUBMERSION
If the generator has been submerged in water,
it MUST NOT be started and operated. Following any
submersion in water, have a Guardian Authorized
Dealer thoroughly clean and dry the generator.
4.11 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.
4.12 OUT OF SERVICE PROCEDURE
4.12.1 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 5A and 15A fuses from the generator
control panel. Disconnect the battery cables as
outlined in “General Hazards” (page 2).
6. While the engine is still warm from running,
drain the oil completely. Refill the crankcase with
oil. See ”Engine Oil Recommendations,” Section
4.3.1.
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.
4.12.2 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 Section 4.3.1). 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,” Section 1.5, for type and
size.
4. Clean and wipe the entire generator.
5. Remove the 5A and 15A fuses from the generator
control panel. Reconnect the battery. Observe bat-
tery polarity. Damage may occur if the battery is
connected incorrectly.
6. Open the fuel shutoff valve.
7. Insert the 5A and 15A fuses 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.
!
Section 4 — Maintenance
Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators