(1) Flushing valve. (2) Line from charge filter. (3) Tandem propel pumps. (4) Axle propel motor. (5) Drum drive motor. (6) Brake for axle moor (f
equipped). (7) Unfiltered charge oil. (8) Parking brake and speed shift valves. (9) Thermal bypass valve. (10) Hydraulic oil tank. (11) Brake interlock
valve. (12) Line from charge filter relief. (13) Hydraulic oil cooler.
The propel system is a closed loop, hydrostatic system. The
main components of the system are: tandem propel pump (3),
axle propel motor (4), drum drive motor (5), parking brake and
speed shift valves (8), hydraulic oil tank (10) and oil cooler