Page K-20
Repair and Service Manual
B
MECHANICAL BRAKES
Read all of Section B and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
Parking Brake Catch Bracket Removal and
Installation
Remove the driver side front wheel to gain access to the
brake pedal release mechanism.
To prevent serious injury or death resulting
from the sue of worn parking brake compo-
nents, do not attempt to re-new worn compo-
nents. The catch bracket is a hardened part.
Do not grind or file it as doing so will cause the
part to lose its hardness characteristics. A new
part must be used.
Remove the two bolts (1) and nuts (2) which secure the
catch bracket. Replace the catch bracket with a new
one, replace and tighten the hardware to 85 - 95 in. lbs.
(10 - 11 Nm) torque (Ref. Fig. 27).
If required, adjust the kick-off cam (3).
Install wheel. See WHEELS AND TIRES section
Fig. 27 Catch Bracket and Latch Arm
Parking Brake Pedal, Removal and Installa-
tion
Note the location and orientation of the two torsion
springs (8). Remove the push nut (9) and pin (10) (Ref.
Fig. 26) and remove the parking brake pedal. Some
models may use two push nuts on the pin.
To prevent serious injury or death resulting
from the use of worn parking brake compo-
nents, do not attempt to re-new worn compo-
nen ts . T he pa r ki ng br ak e ar m l at ch i s a
hardened part. Do not grind or file it as doing
so will cause the part to lose its hardness char-
acteristics. A new part must be used.
Installation is in the reverse order of disassembly. Use a
new push nut (or push nuts).
If required, adjust the kick-off cam (3)See If required,
adjust the kick-off cam (6). on 20.
Pedal Bumper Adjustment
Loosen the bumper lock nut and adjust the bumper by
rotating it (Ref. Fig. 28). The brake pedal must contact
the pedal bumper when pedal is released and the
dimension from the top of the pedal arm to the setscrew
heads in the kick-off cam should be approximately 1/4" -
3/8” (6 - 9.5 mm).
Tighten the lock nut to 12 - 14 ft. lbs. (16 - 19 Nm).
Fig. 28 Pedal Bumper Adjustment
Parking Brake Release Linkage Removal
and Replacement
Remove the cotter pin (2), washers (3) and bushings (4)
from linkage rod (1). Remove the linkage rod (Ref. Fig.
27).
Inspect the bushings (4). If they are worn replace them
with new ones.
Installation is in the reverse order of disassembly.
If required, adjust the kick-off cam (6)
.
Parking Brake Kick-Off Cam Removal,
Replacement and Installation
Disconnect the parking brake release linkage as
described above. Loosen the two setscrews (5) from the
cam (6) and remove the cam pivot (7), cam and spacer
(8) (Ref. Fig. 29).
Cam Must Be Against
Latch Arm At This Point
0.0" Gap
(0.0 mm)
1/4" (6 mm) Max Gap At This Point
Pedal Latch Arm
Catch Bracket
.03" (.76 mm) Max Gap
After Adjustment Of Cam
1
2
4
3
Pedal Bumper
Lock
Nut
1/4" - 3/8" (6 - 9.5 mm) Diameter
Drill or Bolt Must Pass
Through Gap
Summary of Contents for EXPRESS L6 2012
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