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 170 of 894

TRUCK SERVICE MANUAL

4. Observe extreme care when welding near nylon

tubing.

Hot slag or spark will damage the tubing.

5. Protect nylon tubing from battery acid.

The service nylon tubing will be marked at regular

intervals

with

name,

number,

type,

size

and

manufacturing code designations.

This marking is

intended to positively identify the tubing and prevent

substitution of inferior quality tubing.

MAINTENANCE

Every six months all air connections should be

checked and tightened if leaking (refer to SERVICE

CHECKS).

Once each year all tubing and hoses should

be inspected for dents, kinks,

chafing or crimping.

Replace tubing if these conditions are found.

SERVICE CHECKS

Operating Tests

If any evidence is found that an air line is restricted,

remove and blow out through it in both directions to be

sure the passage through the tubing is not obstructed in

any way.

Inspect piping for partial restrictions such as

may be caused by dents or kinks.

Damaged pipes must

be replaced.

Leakage Tests

With the air system fully charged, the governor cut

out and brakes applied, use SE-2326 Leak Detector

Tester at air lines and fittings to check for leakage.

No

leakage is permissible.

Leakage at a tubing fitting is

sometimes corrected by tightening the fitting nut.

If this

fails to correct the leakage, replace the tubing, sleeve or

fitting, the tubing or hose.

168

BRAKES-AIR