793B TRUCK MACHINE SYSTEMS Caterpillar

1. Drain the oil from the rear brake master cylinder and rotochambers.

2. Disconnect two lines (1) and (3) from the slack adjuster.

3. Disconnect hose (4) from the slack adjuster.

4. Remove the two bolts that hold slack adjuster (2) to the differential housing, and remove the slack adjuster.

NOTE: The following steps are for installation of the slack adjuster.

5. Put slack adjuster (2) in position, and install the two bolts that hold it.

NOTE: Line (1) is from the right rear brake. Line (3) is from the left rear brake. Hose (4) is from the rear brake master cylinder and rotochambers.

6. Connect lines (1) and (3) and hose (4) to slack adjuster (2).

7. Bleed the air from the brake system. See the Systems Operation/Testing & Adjusting Manual and the topic "Remove Air From The Hydraulic Brake System (Bleed The Brakes) for the correct procedure.