PINION 2F1660 - Caterpillar

Illustration 1 g00911790
Reversible Fan Drive (Cooling) - This is a two-position switch. Push the top of the switch and hold the top of the switch in order to reverse the flow of air through the cooling system. When the switch is released, the fan drive will revert to pulling the air through the cooling system. Do not hold the switch for more thirty seconds at a time.The fan may be reversed at any time during machine operation and at any engine speed.Operating the fan drive in the reverse mode can prevent overheating of the engine coolant and hydraulic oil if the fins of the radiator and oil cooler cores become clogged with debris. During adverse operating conditions, operate the reverse fan drive for fifteen seconds and repeat every fifteen minutes.