TM 9-2330-389-14&P
4-23.
SERVICE BRAKE MAINTENANCE (Con't).
1.
Unhook parking brake cable (1) from parking brake lever (2). Pull parking brake cable (1) out of backing plate (3).
2.
Remove three helical springs (4 and 5) using brake repair tool.
3.
Using brake adjusting tool, back off adjusting screw (6) a few turns to provide slack.
4.
Spread apart lower ends of primary and secondary brakeshoes (7 and 8). Remove adjusting screw (6).
NOTE
Perform step 5 only if removing left or right inner service brake.
5.
Spread apart upper ends of primary and secondary brake shoes (7 and 8). Remove parking brake strut (9) and
helical spring (10).
6.
While holding head of toggle pin (11), compress helical spring (12) and turn toggle pin (11) from outside to
disengage from helical retainer (13).
7.
Remove toggle pin (11), helical spring (12), and helical retainer (13). Remove primary brakeshoe (7) from
backing plate (3).
8.
Repeat steps 6 and 7 to remove secondary brakeshoe (8) from backing plate (3).
NOTE
Perform step 9 only if removing left or right inner service brake.
9.
Remove brake lining clamp (14), spring washer (15), and parking brake lever (2) from secondary brakeshoe (8).
Discard brake lining clamp and spring washer.
4-22
