SOCKET 5F3558 - Caterpillar

Illustration 1 g00846942
Case drain filterThe case drain filter receives case drain oil from the following components.
Right travel motor
Left travel motor
Swing motor
Main hydraulic pump (idler pump and drive pump)
Fan motor
Fan pumpCase drain oil flow from the right travel motor, the left travel motor and the swing motor are combined at the swivel. The case drain oil flow from these components then flows to the case drain filter. The case drain oil from the main hydraulic pump, the fan pump, and the fan motor also flows to the case drain filter. Return oil then flows from the case drain filter to the hydraulic tank.