TM 9-2330-389-14&P
4-23.
SERVICE BRAKE MAINTENANCE (Con't).
c.
ASSEMBLY
NOTE
Perform steps 1 and 2 only if backing plate was removed.
1.
Position new backing plate (3) on front frame assembly spindle (20) and install five machine bolts (18) and five flat
washers (19).
2.
Connect tube assembly (16) to hydraulic wheel cylinder (17).
NOTE
Perform step 3 only if left or right inner service brake was removed.
3.
Position parking brake lever (2) on secondary brakeshoe (8). Install new spring washer (15) and brake lining
clamp (14).
4.
Position primary brakeshoe (7) on backing plate (3). Install toggle pin (11) in primary brakeshoe (7).
5.
Install helical spring (12) and helical retainer (13) on toggle pin (11). While holding head of toggle pin (11),
compress and turn helical retainer (13) until engaged.
6.
Repeat steps 4 and 5 to install secondary brakeshoe (8) on backing plate (3).
NOTE
Perform step 7 only if installing left or right inner service brake.
7.
Spread apart upper ends of primary and secondary brake shoes (7 and 8). Install parking brake strut (9) and
helical spring (10).
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