%
Repair and Service Manual
%5$.(6
Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
699326
)LJXUH)DXOW7HVWLQJ)ORZFKDUW&RQWLQXHG
Adjuster Tries
to Move Star Wheel?
Star Wheel Rotates?
Free Movement of
Sliding Anchor?
10
Yes
Replace
Both
Sides
No
Springs
Bent, Broken
or Missing?
Visually Inspect
Brake Shoes
Visually Inspect
Brake Springs
11
14
13
12
Yes
No
Disassemble,
Clean and Lube
Bosses
Damaged,
Worn .06" or less,
Glazed?
Install New
Shoes and
Springs
Carefully
Reset
Adjuster
15
16
No
Fail
PBPT
Yes
Pass
Yes
No
Re-Adjust
Free Travel
**
Dynamic Adjust means to fully apply and release the brakes on a
vehicle while it is rolling. Do this by first verifying that some
braking function exists. Then drive vehicle at slow speed and
apply the brakes aggressively. As the brakes adjust and stop the
vehicle more effectively, start driving at maximum speed and brake
aggressively 10 times. At the spherical nut, readjust the free travel.
Drive and brake aggressively 10 more times. Repeat until the pedal
free travel stabilizes within the specified range.
19
Return to Service
Wheel Brake
Clevis Pins
Tight?
Wheel Brake
Clevis Pins
Tight?
Go to first.
If tight after
second time,
go to .
19
5
Aggressive
Brake Test
(10 times)
18
**
Dynamic Adjust
Brakes and Pedal
Free Travel
No
Disassemble
Brake,
Clean, Lube.
Replace
Adjuster
Both Sides.
Yes
Install Inner Brake Drum
Washers and Apply
Anti-seize compound
to Splines
Install Brake Drum
and Torque
Repeat Wheel Brake
Work to Other Side
From Step to
8
13
17
Install Wheel and Tire,
Check Tire Pressure.
Torque Lug Nuts.
