TM-5-3805-254-14-P-2

TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW, IHC MODEL F-5070 (CCE)

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, GENERAL SUPPORT AND DEPT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS INFORMATION AND SUPPLEMENTAL MAINTENANCE INSTRUCTIONS)

JUNE 1980

TM-5-3805-254-14-P-2 - Page 205 of 894

TRUCK SERVICE MANUAL

BRAKES-AIR

SERVICE RECOMMENDATIONS

Recommended Preventive Maintenance

A. Periodic inspections-25,000 to 30,000 mile intervals or every two months:

1

Check lining wear to determine proper reline time.

2

When automatic adjusters are used, check lining to drum clearance-if clearance is .060" or less,

adjusters are working properly.

3

Check service by cycling respective application valves.

B

At 100,000 miles or once yearly:

1

remove all wheels and drums.

a

Inspect plunger seals.

b

If seals are cut, torn, or leaking-disassemble and overhaul brake actuating components.

c

If seals are in good condition, remove upper adjusting plunger and its seal and check internal

condition.

d

If grease is contaminated or hardened, or if parts are dry-disassemble and overhaul brake actu-

ating components.

e

If internal condition is satisfactory, reassemble adjusting plunger and replace seal and run until

next inspection.

C

At each brake reline:

1

If reline period is 100,000 miles or greater - disassemble and overhaul all brake actuating com-

ponents.

NOTE: Do not use combination linings

.

2

If reline period is appreciably less than 100,000 miles:

a

Remove adjusting plungers and related parts.

b

Clean and regrease adjusting bolt and sleeve (or plunger).

c

Check internal condition-if satisfactory reassemble-if unsatisfactory overhaul entire actuat-

ing system.

201