PLUG 9M7641 - Caterpillar

Illustration 1 g01944740
Engine Compartment (1) Fan motorFan motor (1) is a gear motor with a fixed displacement. This motor is located behind the engine. The engine compartment cover provides access to this motor.Fan motor (1) is connected to the cooling fan. The priority valve in the steering and charge pump directs excess flow to the fan motor. The fan motor contains a relief valve "not shown" which limits the motor inlet pressure to approximately 6270 kPa (910 psi). The relief valve is adjustable. Clockwise rotation of the relief valve increases pressure, and therefore, increases fan speed. Counterclockwise rotation of the valve decreases pressure and fan speed. When the system is adjusted properly, fan speed should be 2600 50 rpm.Oil leaving the outlet side of fan motor (1) is directed to the charge filter. The fan motor case drain line sends oil from the motor case directly into the hydraulic tank.