768C TRACTOR & 769C TRUCK MACHINE SYSTEMS Caterpillar

1. Loosen two bolts (2) that hold pins (1).

2. Pull pins (1) out far enough to be free of brake linings (4). Remove the brake linings from brake caliper (3).

NOTE: If pins (1) are tight and cannot be moved, it may be necessary to install a puller in the 1/2" - 13 threads in the pin. The tire and rim must be removed if a puller is used on outer pin (1).

NOTE: The following steps are for installation of the brake linings.

3. Put brake linings (4) in position, and push pins (1) into brake caliper (3).

4. Measure the distance between pins (1) and the brake disc with feeler gauge (5). The distance must be 1.5 ± 0.5 mm (.06 ± .02 in). Move the pins in or out to obtain the correct clearance. Tighten bolts (2) 46 ± 3 N·m (34 ± 2 lb ft).