TM 10-3950-206-12
1.
Backing plate
6. Drive flange
11.
Locking strip
2.
Roller
7. Brake drum
12.
Hex Hd cap screw (2)
3.
Shoe & lining assy (2)
8. Hex Hd cap screw (8)
13.
Hex Hd cap screw (4)
4.
Extension spring (2)
9. Shim (AR)
14.
Lockwasher (4)
5.
Operating lever
10. Washer
Figure 4-51. Transmission drive yoke and parking brake, exploded view.
(3) Tighten brakedrum capscrews (8) to 41 to
(1) Remove cotter pin (12, fig. 4-52) and clevis
49 ft. lbs. torque.
pin (5) that secure clevis (4) to brake pedal (11).
(4) Tighten brake back mounting capscrews
(2) Disconnect hydraulic brake line at master
(13) to 164 to 192 ft. lbs. torque.
cylinder (2).
(5) Tighten flange capscrews (12) to 96 to 115
(3) Remove two capscrews (1), lockwashers
ft. lbs. torque.
(14) and nuts (13) that secure master cylinder to bracket;
remove master cylinder.
4-67. Service Brake Pedal and Linkage Adjustment
b. Installation. Reverse procedures in a above.
a. Measure brake pedal free travel with a ruler. If
4-69. Service , Brakeshoes
free travel is between 3/16 and 5/16 inch, no linkage
a. Removal.
adjustment is necessary.
b. Adjust brake linkage at master cylinder as
(1) Jack up front wheels of crane.
follows:
(2) Remove wheels and tires (para 4-62).
(1) Remove cotter pin (12, fig. 4-52) and pin
(3) Remove nuts (15, fig. 4-53) and lock-
(5).
washers (14).
(2) Loosen locknut (3).
(4) Remove tapered locks (13) and remove
(3) Rotate clevis (4) until free brake pedal
axle (12).
travel is between 3/16 and 5/16 inch.
(5) Remove gaskets (10), seal (11), lock- nut
(4) Tighten locknut against clevis (4).
(9), lockwasher (8) and adjusting nut (7).
(5) Install pin (5) and secure with cotter pin
(6) Remove bearing cone (6) by removing
(12).
brakedrum and hub (3).
4-68. Brake Master Cylinder
a. Removal.
4-54
