7-19. REAR DUAL SERVICE/PARKING BRAKE ADJUSTMENT
This task covers:
General mechanics tool kit:
automotive (Appendix B, Item 1)
Maintenance and repair shop equipment:
automotive (Appendix B, Item 2)
Cotter pin (Appendix G, Item 35)
Wheels chocked and parking brake released
The Kelsey-Hayes parking brake mechanism has an automatic
adjusting feature and does not require periodic manual adjustment.
When parking brake components or rear brake pads are replaced,
the parking brake linkage must be initially positioned to ensure
proper parking brake system operation. The only additional
adjustment necessary is accomplished with parking brake hand
lever. Refer to TM 9-2320-387-10.
Remove clip (1) and spread boot (2) to allow access to cotter pin (9).
Remove cotter pin (91, washer (81, and clevis pin (4) from clevis (5) and bellcrank (3). Discard cotter
Repeatedly apply and adjust parking brake hand lever until bellcrank (31 linear travel is 0.75 in.
Holes in parking brake clevis must align to holes in adjusting
bellcrank without force for proper parking brake adjustment.
Failure to do this may result in damage to equipment and poor
Release parking brake. Loosen nut (6) and adjust clevis (5) so holes in clevis (5) align to holes in
bellcrank (3). Install clevis (5) on bellcrank (3) with clevis pin (4), washer (81, and cotter pin (91.
Do not over-tighten brake rod. Over-tightening brake rod may result
in dragging brakes.
If necessary, remove excess slack in parking brake cables by turning parking brake rod (7) clockwise
or counterclockwise into clevis (5).