MQ Power WHISPERWATT DCA150SSJU4F2 Operation Manual page 42

COOLANT
(ANTIFREEZE/SUMMER COOLANT/WATER)
John Deere recommends Cool-Gard™ II antifreeze/summer
coolant for use in their engines, which can be purchased in
concentrate (and mixed with 50% demineralized water) or
pre-diluted. See the John Deere Engine Owner's Manual
for further details.
WARNING
If adding coolant/antifreeze mix to the
radiator, DO NOT remove the radiator cap
until the unit has completely cooled. The
possibility of hot! coolant exists which can
cause severe burns.
Day-to-day addition of coolant is done from the recovery
tank. When adding coolant to the radiator, DO NOT remove
the radiator cap until the unit has completely cooled. See
Table 13 for engine, radiator, and recovery tank coolant
capacities. Make sure the coolant level in the recovery tank
is always between the "H" and the "L" markings.
Table 13. Coolant Capacity
Engine and Radiator
Reserve Tank
Operation in Freezing Weather
When operating in freezing weather, be certain the proper
amount of antifreeze (Table 14) has been added.
Table 14. Coolant Capacity
Outside
Climate
Temperature
10°F (–12°C) or
Warm
Above
–22°F (30°C) or
Cold
Above
NOTICE
When the antifreeze is mixed with water, the antifreeze
mixing ratio must be less than 50%.
PAGE 42 — DCA150SSJU4F2/F3 60 HZ GENERATOR • OPERATION MANUAL — REV. #0 (02/16/22)
12.9 gal (48.7 liters)
N/A
Longlife Coolant
Concentration
30%
50%
INSPECTION/SETUP
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 the
air cleaner in accordance with the John Deere 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 John
Deere Engine Owner's Manual.
The fan belt tension is proper if the fan belt bends
10 to 15 mm (Figure 45) when pressed with the thumb as
shown below.
Figure 45. Fan Belt Tension
CAUTION
NEVER place hands near the belts or fan
while the generator set is running.
0.39–0.59 IN.
(10–15 MM)
DEFLECTION