Challenger 35, Challenger 45 and Challenger 55 Agricultural Tractors Power Train Caterpillar

Illustration 1	g00470110

Oil flows from the tandem charge pump through transmission filter (1). The transmission filter is a 15 micron filter with a bypass valve. The bypass valve opens at 345 kPa (50 psi). The bypass valve contains an electronic filter bypass switch.

Filtered oil passes through the pressure regulating valve before entering the transmission hydraulic control. The low pressure circuits include the following circuits: transmission hydraulic control, lubrication of the transmission clutches, PTO control, service brake control and hydraulic oil cooler.