HOUSING GP-FLYWHEEL 3712538 - Caterpillar

Illustration 1 g00916396
Front view of torque converter, pulled unit, brake, and transmission hydraulic tank (1) Torque converter, pulled unit, and brake section (2) Transmission section (3) Control valve
Illustration 2 g00916398
View A-A (4) Rear brake cooling relief valveThe hydraulic tank (torque converter, pulled unit, brake, and transmission) has two separate oil tanks. The torque converter, pulled unit, and brake section (1) is separated from the transmission section (2) by a wall inside the hydraulic tank. The transmission section (2) is smaller than the torque converter, pulled unit, and brake section (1) and provides oil for the transmission. The torque converter, pulled unit, and brake section (1) is larger than the transmission section (2) and provides oil for torque converter operation, the implement hydraulic system, and brake operation and cooling. The hydraulic tank is mounted to the left side of the frame.A relief valve for rear brake cooling (4) is located inside the torque converter, pulled unit, and brake section (1). The relief valve for rear brake cooling (4) provides pressure relief to oil flowing to the coolers for the rear brakes. Torque converter, pulled unit, and brake section (1) also contains control valve (3) for the pulled unit hydraulics.Both transmission section (2) and torque converter, pulled unit, and brake section (1) are vented to breathers. Breathers for the torque converter, pulled unit, and brake section (1), the oil pump drive, and the torque converter are located on the right side of the horizontal frame member above the torque converter. The transmission breather is located on top of transmission section (2).
Illustration 3 g00911334
Rear view of torque converter, pulled unit, brake, and transmission hydraulic tank (1) Hydraulic tank for torque converter, pulled unit, and brake operation and cooling (2) Hydraulic tank for transmission (6) Return port for transmission scavenge pump (7) Drain port for the lip seal case of the parking brake (8) Drain port for AETA (an attachment) (9) Drain port for parking and secondary brake valve (10) Return port for brake makeup oil tank (11) Return port for rear brake cooling oil (left brake) (12) Return port for rear brake cooling oil (right brake) (13) Return port for front brake cooling oil (an attachment) (14) Suction port for transmission oil (15) Suction port for pulled unit pump (16) Outlet port to pulled unit hydraulics (17) Suction port for torque converter charging section of the oil pump and parking brake release section of the oil pump (18) Outlet port to pulled unit hydraulics (19) Outlet port to rear brake cooling system (20) Inlet port to control valve (from pump) (21) Return port for torque converter inlet relief valve (22) Return port for torque converter scavenge pump