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PAGE 26 — DA7000 SERIES GENERATORS• OPERATION AND PARTS MANUAL — REV. #5 (01/20/11)
INSPECTION/SETUP
CLEANING THE RADIATOR
The engine may overheat if the radiator fi ns become
overloaded with dust or debris. Periodically clean the
radiator fi ns with compressed air. Cleaning inside the
machine is dangerous, so clean only with the engine turned
off and the negative battery terminal disconnected.
AIR CLEANER
Periodic cleaning/replacement is necessary. Inspect it in
accordance with the KUBOTA Engine Owner’s Manual.
Fan Belt Tension
A slack fan belt may contribute to overheating, or to
insuffi cient charging of the battery. Inspect the fan belt
for damage and wear and adjust it in accordance with the
Kubota Engine Owner's Manual.
The fan belt tension is proper if the fan belt bends 10 to 15
mm (Figure 12) when depressed with the thumb as shown
below.
Figure 12. Fan Belt Tension
NOTICE
When the antifreeze is mixed with water, the antifreeze
mixing ratio must be less than 50%.
CAUTION
NEVER place hands near the belts or fan
while the generator set is running.
BATTERY
This unit is of negative ground DO NOT connect in reverse.
Always maintain battery fl uid level between the specifi ed
marks. Battery life will be shortened, if the fl uid level are
not properly maintained. Add only distilled water when
replenishment is necessary.
DO NOT over fill. Check to see whether the battery
cables are loose. Poor contact may result in poor starting
or malfunctions. Always keep the terminals firmly
tightened. Coating the terminals with an approved battery
terminal treatment compound. Replace battery with only
recommended type battery.
The battery is suffi ciently charged if the specifi c gravity
of the battery fl uid is 1.28 (at 68° F). If the specifi c gravity
should fall to 1.245 or lower, it indicates that the battery is
dead and needs to be recharged or replaced.
Before charging the battery with an external electric source,
be sure to disconnect the battery cables.
Battery Cable Installation
ALWAYS be sure the battery cables (Figure 13) are properly
connected to the battery terminals as shown below. The
red cable is connected to the positive terminal of the
battery, and the black cable is connected to the negative
terminal of the battery.
Figure 13. Battery Connections
CAUTION
ALWAYS disconnect the negative terminal FIRST and
reconnect negative terminal LAST.