PREVENTIVE MAINTENANCE CHECKS AND SERVICES - CONTINUED
c. Lubricate brake camshaft/slack adjuster
a. Inspect all brake valves for leaks or damage.
Replace damaged or leaking valves (page 4-609).
b. Apply brakes and listen for immediate ex-
hausting of air. If air does not exhaust immedi-
ately, replace relay valve (page 4-785).
c. Drain air in one tank and observe air pres-
sure gage. If both systems lose air pressure,
replace doublecheck valve (page 4-796).
Inspect air reservoirs and air lines for damage
and leakage. Replace damaged or leaking parts
and Air Lines
Inspect cab mounts for secureness and damage.
Tighten loose cab mounts. If cab mounts are dam-
aged, notify Direct Support Maintenance.
Inspect all propeller shafts and U-joints for dam-
age and security. There should not be any movement
between propeller shaft and U-joints in any direc-
tion. If there is movement between propeller shaft
and U-joints, replace damaged U-joints. Tighten
loose flange bolts and nuts (page 4-574). Lubricate
a. Inspect main transmission for leaks. If
main transmission is leaking, notify Direct Support
b. Inspect temperature sending unit and wire for
damage. Replace damaged parts (page 4-398).
c. Check linkage for proper operation. If
linkage requires adjustment, adjust (page 4-525).
d. Clean breather (LO 9-2320-270-12).
e. Change filters (LO 9-2320-270-12) (pages
4-562 and 4-563).