SEAL-O-RING 5W6378 - Caterpillar

Illustration 1 g01392654Each propulsion motor is a piston type motor with two speeds. A propulsion motor drives each track through a single speed planetary final drive. The ports on the motors are marked for identification. On the right motor, port "A" is the reverse port and port "B" is the forward port. On the left motor, port "A" is the forward port and port "B" is the reverse port. Port "M3" on both motors is the shift port. Each motor is equipped with a speed sensor. A gear on the output shaft of the motor rotates past the tip of the speed sensor. Each time a tooth passes the sensor, an electrical impulse is sent to the machine ECM. The machine ECM converts the frequency of the electrical impulses to a vehicle speed. Each propulsion motor contains a flushing valve. Flushing valves direct oil from the low pressure