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| Illustration 1 | g00307854 |
(1) Torque converter, hoist, brake, and transmission hydraulic tank (2) Torque converter, hoist, and brake section (3) Transmission section (4) Hoist control valve (5) Rear brake oil cooler relief valve | |
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| Illustration 2 | g00317611 |
(1) Torque converter, hoist, brake, and transmission hydraulic tank (2) Torque converter, hoist, and brake section (3) Transmission section | |
The torque converter, hoist, brake, and transmission hydraulic tank (1) is located on the outside of the right side of the frame. The transmission section (3) is separated from the torque converter, hoist, and brake section (2) by a wall inside the hydraulic tank (1). The transmission section (3) supplies oil for the operation of the transmission. The torque converter, hoist, and brake section (2) supplies oil to the brakes, to the brake cooling system, to the torque converter system, and to the hoist hydraulics. The hoist control valve (4) and the rear brake oil cooler relief valve (5) are located in the torque converter, hoist, and transmission section (2). An air breather for section (2) and an air breather for section (3) are located on the vertical frame member on the right side of the truck.
The torque converter, hoist, and brake section (2) has two sight gauges. The top sight gauge is generally used for checking the oil level. The bottom sight gauge can be used when the hoist cylinders are in the RAISE position. The transmission section (3) also has two sight gauges. The bottom sight gauge is used for checking the oil level with cold oil. The top sight gauge is used for checking the oil level with hot oil. See the Operation and Maintenance Manual for lubrication viscosities and for refill capacities for both sections of the hydraulic tank.
Tank Ports
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| Illustration 3 | g00307924 |
(6) Breather ports for the transmission section of the hydraulic tank (7) Breather port for the torque converter, hoist, and brake section of the hydraulic tank (8) Return port for the transmission (9) Return port for the torque converter inlet relief valve (10) Return port for brake cooling (11) Outlet port to the rod end of the hoist cylinders (12) Inlet port to the hoist control valve from the hoist pump (13) Return port from torque converter scavenge pump (14) Drain port for the parking and secondary brake control valve (15) Drain port for the lip seal case of the parking brake (16) Drain port for the brake makeup oil tank (17) Port for pilot oil to the hoist diverter valve (18) Outlet port to the head end of the hoist cylinders (19) Suction port for the transmission (20) Suction ports for the hoist and rear brake cooling gear pump (21) This port is not used. (22) Suction port for torque converter pump (23) Outlet port to brake cooling system for the rear brakes | |
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| Illustration 4 | g00394286 |
(8) Return port for the transmission (9) Return port for the torque converter inlet relief valve (10) Return port for brake cooling (11) Outlet port to the rod end of the hoist cylinders (12) Inlet port to the hoist control valve from the hoist pump (13) Return port from torque converter scavenge pump (14) Drain port for the parking and secondary brake control valve (15) Drain port for the lip seal case of the parking brake (16) Drain port for the brake makeup oil tank (18) Outlet port to the head end of the hoist cylinders (19) Suction port for the transmission (20) Suction ports for the hoist and rear brake cooling gear pump (21) This port is not used. (22) Suction port for torque converter pump (23) Outlet port to brake cooling system for the rear brakes | |