MQ Power WHISPERWATT DCA25SSIU4FC8 Operation Manual page 31

Cleaning The Radiator
The engine may overheat if the radiator cooling fins
(Figure 36) 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.
COOLING
FINS
Figure 36. Radiator (Cooling Fins)
ENGINE AIR CLEANER
Periodic cleaning/replacement of the engine air cleaner is
necessary. Inspect the air cleaner (Figure 37) in accordance
with the Maintenance section of this manual or the Isuzu
engine owner's manual.
Figure 37. Engine Air Cleaner
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
Maintenance section of this manual or the Isuzu engine
owner's manual.
DCA25SSIU4FC8 60 HZ GENERATOR • OPERATION MANUAL — REV. #0 (08/23/22) — PAGE 31
INSPECTION/SETUP
The fan belt tension is proper if the fan belt bends
0.22–0.24 in. (5.5–6.0 mm) when pressed with the thumb
as shown in Figure 38.
Figure 38. Fan Belt Tension
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 the battery fluid level between the specified
marks. Battery life will be shortened if the fluid levels are
not properly maintained. Add only distilled water when
replenishment is necessary.
DO NOT overfill. Check to see whether the battery cables
are loose. Poor contact may result in poor starting or
malfunctions. ALWAYS keep the terminals firmly tightened.
Coat the terminals with an approved battery terminal
treatment compound. Replace the battery with only the
recommended type battery. The battery type used in this
generator is BCI Group 27.
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.