B
28
Repair and Service Manual
BRAKES
Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
699322
FAULT TEST FLOWCHART
Figure 4 Fault Test Flowchart
Do steps through
to one side at a time
1
Bad
Visually Check
Condition of:
Brake Cables:
Frayed
Damaged
Seized
Sticky
Secured/Hardware
Condition of:
Clevis Pins
Cotter Pins
Equalizer:
Corrosion
Damage
Angle
Attachment
Compensator:
Clevis Pin
Adjustment
Bent Rod
Loose Spherical Nut
and Lock Nut
Service Brake
Pedal:
Pivot
Torsion Spring
Damage
Corrosion
Pedal Pad
Park Brake
Pedal:
Hinge Pin
Torsion Springs
Hardware
Catch Bracket
Latch Arm
Kick-Off Cam
Adjustment
Pedal Pad
Pedal Bumper:
Condition
Secured
Adjustment
Adjust
Correct
Replace
No
Yes
Good
Passes
2 out of 3
Passes
2 out of 3
No
Wheel Brake
Clevis Pins
Tight?
*
Providing free travel is correctly
adjusted, the clevis pins will not
be under tension by the brake cables.
Test
Result
Fails
2 out of 3
Fails
2 out of 3
Perform the
Periodic Brake
Performance
Test (PBPT)
3 Times
3
Aggressive
Stop Test
(10 times)
4
2
Bad
Seal and
Thrust Washer
Condition
Good
Remove Excess
Brake Dust from
Brake Components
8
Yes
Return
To
Service
Go to
2
Go to
6
Remove Both Drums
Don't Disturb Brake
Mechanism
6
9
Visually Inspect
Drums
7
Yes
No
Replace
Replace. See
Rear Axle
Section
in Manual
Replace
Wheel
Brake
Assembly
Go to
10
Adjust
Free
Travel
Test
Result
Visual External
Inspection
Includes
PBPT
3 Times
Remove Both Rear
Wheels and Tires
5
Yes
No
8
13
Overheated,
Worn (Ledge),
Spline, Cracked, Glazed,
Grease Contamination,
Out of Round,
Scored
Adjuster
Arm Bent or Not
Contacting Star Wheel?
Gouges or Galling on Backing Plate?
Gouges or Galling on
Sliding Anchor?
Check Adjuster
Function by Holding
Front Brake Shoe,
Operate Brake Lever
*
See 'Periodic Brake Performance
Test (PBPT)' in the Technicians
Repair & Service Manual
Pedal
Free Travel
Correct?
Содержание LS2 2020
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