Table 3-5. Troubleshooting (Cont)
Test or Inspection
BRAKES AND AIR SYSTEM (CONT)
Check brake pedal (3) adjustment with brake pedal at neutral (brakes not
applied). Piston rod (4) clearance must be 0.04 in. (1 mm).
If piston rod clearance is not 0.04 in. (1 mm), adjust clearance
by turning eccentric screw (5).
If piston rod clearance is 0.04 in. (1 mm), go to step 5.
Check for proper operation of air brake booster by depressing brake pedal
and observing gage needle on dashboard for deflection.
If air brake booster is not operating properly, replace air brake
booster (page 4-295).
If air brake booster is operating properly, notify direct support
86. BRAKES SQUEAL.
Check for dirty, glazed, and worn disc brake pads.
If disc brake pads are glazed or worn, replace pads in sets
(pages 4-268, 4-271).
If disc brake pads are dirty, clean pads.