BRAKES FAIL OR BRAKE PEDAL SPONGY. cont'd -680640398

TM 5-2420-224-20-1

Table 3-5. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

BRAKES AND AIR SYSTEM (CONT)

NOTE

Step 2 is f or fr ont br ak es onl y.

Step 2. Check dus t c over f or dam age.

If dus t c over is dam aged, r eplac e dus t c over ( page 4- 271) .

If dust cover is not damaged, go to step 3.

Step 3. Check f or dam aged s pr ing c lip and r eta ining pi ns .

If s pr ing c lip or r etainin g pins ar e dam aged, r eplac e s pr ing

clip (page 4-268) or retaining pins (page 4-271).

If spring clip or retaining pins are not dam aged, go to step 4.

Step 4. Check f or dis c br ak e pads wor n to 0.08 in. ( 2 m m ) or less .

If dis c br ak e pads ar e wor n, r eplac e pads in s ets

(pages 4-268, 4-271).

If dis c br ak e pads ar e not wor n, go t o s tep 5.

Step 5. Check f or oil y dis c br ak e pads .

I f d i s c b r ak e p a d s a r e oil y, r e p l a c e p a d s i n s et s ( p a g e s

4-268, 4-271) and replace axle final drive outer seal (pages

4-247, 4-248).

I f d i s c b r ak e p a d s a r e not o i l y, g o t o s t e p 6 .

Step 6. Check f or sc or ed dis c sur f ac e.

If dis c s urf ac e is sc or ed, r eplac e dis c ( page 4- 265) .

If dis c s urf ac e is not s cor ed, notif y d ir ec t s uppor t

maintenance.

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