DCA125SSIU4F 60 HZ GENERATOR• OPERATION MANUAL — REV. #0 (07/20/17) — PAGE 31
Cleaning the Radiator
The engine may overheat if the radiator fins become
overloaded with dust or debris. Periodically clean the
radiator fins 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 air
cleaner in accordance with the
Isuzu Engine Owner’s
Manual
.
FAN BELT TENSION
A slack fan belt may contribute to overheating, or to
insufficient charging of the battery. Inspect the fan belt for
damage and wear and adjust it in accordance with the
Isuzu Engine Owner’s Manual.
Fan belt tension is proper if the fan belt bends as
represented in Figure 35 when depressed with the thumb
as shown below. Adjust fan belt tension as required
Figure 35. Fan Belt Tension
0.2 ~ 0.3 IN.
(6 ~ 8 MM)
DEFLECTION
Table 14. Fan Belt Deflection
Belt
Standard Value
Amt. of Deflection
Standard Value
(Vibration Frequency)
New
0.2~0.3 in.
(6~8 mm)
210 Hz.
BATTERY
This unit is of negative ground
DO NOT
connect in reverse.
Always maintain battery fluid level between the specified
marks. Battery life will be shortened, if the fluid 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 type used in this
generator is BCI Group 4D.
The battery is sufficiently charged if the specific gravity
of the battery fluid is 1.28 (at 68° F). If the specific 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.
CAUTION
NEVER
place hands near the belts or fan
while the generator set is running.
INSPECTION/SETUP