LIGHTING G 0375790 - Caterpillar

Illustration 1 g00281508
Hydraulic Fan MotorThe hydraulic fan motor is located between the radiator and the outside grill at the rear of the machine. The fan drive motor is a fixed displacement piston motor. The fan drive motor turns the fan that cools the oil that passes through the hydraulic oil cooler. The engine coolant that passes through the radiator is also cooled by this fan.
Illustration 2 g00292043
Rear View of Hydraulic Fan Motor (1) Outlet port. (2) Inlet port.Pressure oil from the fan drive pump flows into inlet port (2). The pressurized oil acts on the pistons inside the barrel and the barrel rotates. This causes the motor shaft and the cooling fan to turn.Oil exits the fan drive motor through outlet port (1). The oil then flows to the oil cooler and back to the hydraulic tank.Reference: For the specifications of the fan drive motor, refer to Specifications, "Piston Motor (Hydraulic Fan)".