PAGE 32 — DCA70SSIU4F 60 HZ GENERATOR DSE8610 MKII • OPERATION MANUAL — REV. #0 (08/11/22)
COOLANT
(ANTIFREEZE/SUMMER COOLANT/WATER)
Isuzu recommends 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 Isuzu
Engine Owner’s Manual for further details.
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 12 for engine, radiator, and recovery tank coolant
capacities.
1. Verify that the coolant level in the coolant recovery tank
is between the FULL and LOW markings as shown in
Figure 30.
Figure 30. Coolant Recovery Tank
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.
NOTICE
Normally, only the coolant level in the recovery tank
needs to be checked. However, the radiator cap should
be opened once a week to verify that coolant is visible
(full) inside the radiator.
Table 12. Coolant Capacity
Engine and Radiator 5.5 gal. (21 liters)
Reserve Tank 0.29 gal. (1.1 liters)
Operation in Freezing Weather
When operating in freezing weather, be certain the proper
amount of antifreeze (Table 13) has been added.
Cleaning the Radiator
The engine may overheat if the radiator cooling fins
(Figure 31) 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.
Figure 31. Radiator (Cooling Fins)
Table 13. Coolant Concentration
Climate
Outside
Temperature
Long-Life Coolant
Concentration
Warm
10°F (–12°C)
or Above
30%
Cold
–22°F (–30°C)
or Above
50%
COOLING
FINS
INSPECTION/SETUP
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