inspection/SETUP
Coolant (Antifreeze/Summer Coolant/ Water)
Cummins recommends antifreeze/summer coolant for use in their engines, which can be purchased in concentrate (and mixed with 50% demineralized water) or
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.
Table 10. Coolant Capacity
Engine and Radiator | 11.4 gal (43 liters) |
Reserve Tank | N/A |
Operation in Freezing Weather
When operating in freezing weather, be certain the proper amount of antifreeze (Table 11) has been added.
Table 11. Anti-Freeze
Operating Temperatures
Vol % | Freezing Point | |
|
| |
°C | °F | |
|
|
|
50 | ||
|
|
|
NOTICE
When the antifreeze is mixed with water, the antifreeze mixing ratio must be less than 50%.
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 Cummins 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
Cummins Engine Owner’s Manual.
The fan belt tension is proper if the fan belt bends 10 to 15
mm(Figure 33) when depressed with the thumb as shown below.
Figure 33. Fan Belt Tension
CAUTION
NEVER place hands near the belts or fan while the generator set is running.
page 30 — dca220sscu/4i 60 hz generator • operation and Parts manual — rev. #0 (10/25/12)
