Cushman SHUTTLE 4X Technician's Repair And Service Manual page 116

MECHANICAL BRAKES
Read all of Section B and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
B
TROUBLESHOOTING TABLE
Refer to the following troubleshooting table only after the thorough visual inspection, Periodic Brake Performance Test
(PBPT), and Aggressive Stop Test is performed (Ref. Fig. 5).
Condition
Fails Brake Performance Test by stop-
ping in a longer distance than normal
In excess of 1 1/8" (2.9 cm) free pedal
travel (Soft Pedal)
In Excess of 2 1/4" (5.4 cm) free peda
travel (Soft Pedal)
Less than 7/8" (2.2 cm) free pedal trav-
el (Hard Pedal)
Less than 2" (5 cm) free pedal travel
(Hard Pedal)
Neither wheel locks when park brake
is latched. (Note: At full speed the
wheels may not lock, but should brake
aggressively).
Page K-6
Possible Cause
Wheel brake failure due to severely
worn or damaged components.
Brake pedal not returning
Brake not adjusting.
Brake shoes wet.
Brake cables damaged or sticky.
Brake shoes severely worn.
Brake shoes glazed.
System not adjusted properly.
End of brake cable loose from anchor
brackets.
Cracked brake drum.
Low pedal force at parking brake latch. Adjust per manual.
Brake cables damaged.
Brake return bumper out of adjustment. Adjust per manual.
End of brake cable loose from anchor
brackets.
Wheel brake failure due to severely
worn or damaged components.
System not adjusted properly.
High pedal force at parking brake latch. Adjust per Manual.
Brake cables damaged or sticky.
System not adjusted properly.
Wheel brake failure due to severely
worn or damaged components.
Incorrect compensator spring adjust-
ment.
Excessive brake pedal free travel.
Fig. 5 Troubleshooting Table
Repair and Service Manual
Correction
Replace all severely worn or damaged
components.
Check for binding of brake pedal .
Check brake pedal free travel.
Check brake cables.
Check brake adjusters.
Check pedal pivot.
Check again when shoes are dry.
Check brake cable and replace if sticky or
damaged.
Replace.
Sand shoes with emery cloth provided that
shoes have .06" (1.5 mm) min. material.
Check and adjust per manual.
Check and repair.
Replace.
Replace.
Check and repair.
Replace all severely worn or damaged
components.
Adjust per Manual.
Check brake cable and replace if sticky or
damaged.
Check and adjust per manual.
Replace all severely worn or damaged
components.
Return to factory specification.
Adjust per manual.