TM-9-2320-283-20-1

TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3

DECEMBER 1983

TM-9-2320-283-20-1 - Page 448 of 926

TM 9-2320-283-20-1

TROUBLESHOOTING.

2-11.

TROUBLESHOOTING PROCEDURES (Continued).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

130.

FRONT END WANDERS (Continued).

Step 4.

Check for insufficient fifth wheel lubrication (only if trailer is attached).

Lubricate.

(Refer to LO 9-2320-283-12).

Step 5.

Check for loose spring U-bolts.

Torque nuts on U-bolts to 125-165 lb-ft.

Step 6.

Check wheel bearings for play using a pry bar.

Adjust or replace bearing (para 3-205).

Step 7.

Inspect tie rod for damaged and loose ends.

No play is allowable.

Replace tie rod end, if loose (para 3-218).

Step 8.

Inspect vertical link for damage.

Replace vertical link (para 3-216).

Step 9.

Check propeller shafts and universal joints for wear and damage.

Wear is indicated by any movement

between shaft and joint in any direction.

Replace (para 3-144 or 3-145).

Step 10.

Check spring pins for wear using a pry bar.

No noticable movement is allowed.

Notify direct support maintenance.

Step 11.

Check steering gear for looseness.

Notify direct support maintenance.

2-322