AIR SYSTEM AND BRAKES
TM 5-3805-263-14&P-3
SERVICE BRAKES
(7D8440)
NOTE: Rubber toric seals and all surfaces in contact with
them must be clean and dry at assembly. Put a thin layer of
oil on the surfaces of the metal seals that are in contact just
before installation. Put lubricant on all other seals at
assembly
(A) See NEW AND USE AGAIN DIMENSIONS FOR PARTS
IN SERVICE BRAKES.
(7) Torque for retainer.....................30 5 lb. ft. (40 7 Nm)
(8) 9J5498 Spring
Length under test force ................... 1.812 in. (46 02 mm)
Test force .................................. 45 + 2.25 lb. (200 10 N)
Free length after test ........................... 2.71 in. (68.8 mm)
Outside diameter ................................ 825 in. (20.96 mm)
(9) Torque for studs ...........170 + 20 lb. ft. (230 25 Nm)
SHIM ADJUSTMENT PROCEDURE
1. Assemble complete brake group with no shims (1) under
retainer (3).
2. Put flange end of wheel spindle (4) down.
3. Tighten three bolts (2) to a torque of 35 lb. ft. (45 Nm)
while turning spindle housing (6).
4. Remove bolts (2) and retainer (3), but do not turn
housing (6).
5. Measure distance from end of spindle (4) to end of
sprocket (5).
6. Install shims (1) of this thickness less .010 to .015 in.
(0.25 to 0.38 mm). If total shim thickness is more than
.040 in. (1.02 mm), use a 9D7074 Shim as part of shim
thickness needed. If total shim thickness is more than
.060 in. (1.52 mm), use two 9D7074 Shims.
7. Install retainer and bolts. Tighten bolts to a torque of 150
+ 20 lb. ft. (205 25 Nm).
3-149
