TM-5-3805-254-14-P-2
TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW, IHC MODEL F-5070 (CCE)
TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, GENERAL SUPPORT AND DEPT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS INFORMATION AND SUPPLEMENTAL MAINTENANCE INSTRUCTIONS)
JUNE 1980
TM-5-3805-254-14-P-2 - Page 228 of 894
BRAKES - AIR
TRUCK SERVICE MANUAL
REASSEMBLE ADJUSTING ASSEMBLY
A.
Grease coat the adjusting bolt threads with
recommended grease.
B.
Install plunger seal onto the adjusting bolt by
working the bolt through the seal hole.
Be
careful not to damage the seal lip on the bolt
threads.
Also, make certain the seal lip is
seated against the smooth machined surface
beneath the head of the bolt.
C.
Grease coat the inside and outside surfaces of
both the adjusting plunger and the adjusting
sleeve.
D.
Thread the adjusting sleeve all the way onto the
adjusting bolt until it bottoms against the plunger
seal.
E.
Use a suitable pair of snap ring pliers and install
snap ring in place on end of adjusting bolt.
F.
Install the adjusting plunger into the plunger
housing, aligning plunger key-way slot with
capscrew hole of housing.
G.
Insert adjusting bolt (with adjusting sleeve and
plunger seal) into the adjusting plunger. Make
certain adjusting sleeve bottoms against inside
shoulder of plunger.
H.
Use an appropriate seal driver and seat plunger
seal retainer into plunger housing.
NOTE Make certain seal driver is centered over seal
retainer to prevent damage to seal assembly.
J.
Grease coat the teeth of the hollow adjusting
pawl with recommended grease.
Then
assemble adjusting pawl spring and pawl by
forcing one end of spring into the hollow end of
pawl.
K.
Install hollow capscrew gasket over capscrew.
Then, assemble open end of adjusting pawl
Spring into hollow end of capscrew.
L.
Align the key of the adjusting pawl with the
corresponding guide hole seat of the plunger
housing.
Then, assemble the complete
adjusting pawl assembly (pawl, spring, gasket,
hollow capscrew) into the plunger housing.
Tighten the hollow capscrew finger tight.
M
Proper meshing of the pawl and sleeve teeth can
be checked at this point.
Turn the adjusting bolt
out about three turns.
If there is clicking sound
or ratcheting feel, the teeth are meshing
properly.
If teeth are not meshing properly,
continue to turn the bolt in and out until proper
meshing is achieved.
N.
Tighten hollow capscrew 15-20 lbs.
ft.
torque,
and reassemble brake shoe assembly in reverse
of disassembly.
224
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