Coolant, Operation in Freezing Weather

inspection

WARNING

When connecting the positive (+) cable to the battery's positive (+) terminal post, DO NOT allow the wrench or any metallic part to come in contact with the battery's negative (-) terminal post. This may result

in an electrical short circuit or an explosion.

NOTICE

Use only distilled water in the battery. Tap water can reduce the operating life of the battery.

Coolant

It is recommended that antifreeze/summer coolant be used with the engine. This can be purchased pre-diluted or in concentrate and mixed with 50% demineralized water. See engine owner's manual for more 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 5 for engine and radiator, coolant capacities. Make sure the coolant level in the recovery tank is always between the "H" and the "L" markings.

Table 5. Coolant Capacity

Engine Type	Coolant Capacity
Kohler KDW 1003	5.18 qt. (4.9 liters)

Operation in Freezing Weather

When operating in freezing weather, make sure the proper amount of antifreeze (Table 6) has been added.

Table 6. Anti-Freeze Operating Temperatures

Vol (%)	Freezing Point		Boiling Point
Vol (%)
Anti-Freeze	°C	°F	°C	°F

40	-24	-12	106	222

50	-37	-34	108	226

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 of the air cleaner filter is necessary. Inspect it in accordance with the 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 engine owner's manual.

The fan belt tension is proper if the fan belt bends 10 to 15 mm when depressed with the thumb as shown in Figure 11.

Figure 11. Fan Belt Tension

LT6D LIGHT TOWER • operation manual — rev. #0 (07/16/13) — page 29