BRAKES SQUEAL.

TM 5-2420-224-20-1

Table 3-5. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

BRAKES AND AIR SYSTEM (CONT)

Step 4.

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.

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

maintenance.

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.