TM 9-2320-387-24-l
7-19. REAR DUAL SERVICE/PARKING BRAKE ADJUSTMENT
This task covers:
Adjustment
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Maintenance and repair shop equipment:
automotive (Appendix B, Item 2)
Materials/Parts
Cotter pin (Appendix G, Item 35)
Personnel Required
One mechanic
One assistant
Manual References
TM 9-2320-387-10
TM 9-2320-387-24P
Equipment Condition
Wheels chocked and parking brake released
(TM 9-2320-387-101.
Maintenance Level
Unit
NOTE
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.
1.
Remove clip (1) and spread boot (2) to allow access to cotter pin (9).
2.
Remove cotter pin (91, washer (81, and clevis pin (4) from clevis (5) and bellcrank (3). Discard cotter
pin (9).
3.
Repeatedly apply and adjust parking brake hand lever until bellcrank (31 linear travel is 0.75 in.
(19 mm).
CAUTION
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
performance.
4.
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.
CAUTION
Do not over-tighten brake rod. Over-tightening brake rod may result
in dragging brakes.
5.
If necessary, remove excess slack in parking brake cables by turning parking brake rod (7) clockwise
or counterclockwise into clevis (5).
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