MQ Power WHISPERWATT DCA10SPX4 Operation Manual page 27

Operation In Freezing Weather
NOTICE
When the antifreeze is mixed with water, the antifreeze
mixing ratio must be less than 50%.
When operating in freezing weather, be certain the proper
amount of antifreeze (Table 10) has been added.
Table 10. Antifreeze
Operating Temperatures
Vol. %
Antifreeze
40
50
Cleaning The Radiator
The engine may overheat if the radiator cooling fins
(Figure 19) 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 19. Radiator (Cooling Fins)
DCA10SPX4/DCA10SPXU4 • OPERATION MANUAL — REV. #2 (10/11/22) — PAGE 27
Freezing Point
°C °F
–24 –11
–37 –34
INSPECTION/SETUP
ENGINE AIR CLEANER
Periodic cleaning/replacement of the engine air cleaner is
necessary. Inspect the air cleaner (Figure 20) in accordance
with the Maintenance section of this manual or the Kubota
engine owner's manual.
Figure 20. Engine Air Cleaner
DRIVE BELT TENSION
A slack drive belt may contribute to overheating, or to
insufficient charging of the battery. Inspect the drive belt
for damage or wear and adjust it in accordance with the
Kubota engine owner's manual.
The drive belt tension is proper if the belt bends
0.28–0.35 in. (7–9 mm) when pressed with the thumb as
shown in Figure 21.
Figure 21. Drive Belt Tension
CAUTION
NEVER place hands near the belt or fan
while the generator set is running.
0.28–0.35 IN.
(7–9 MM)
DEFLECTION