Unit Mechanical Troubleshooting - continued

TM 9-2320-386-24-1-1

0010 00

Unit Mechanical Troubleshooting (Contd)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Step 11. Check for worn pitman arm.

Replace worn pitman arm (WP 0180 00).

Step 12. Check front spring shackle pins for damage and breaks.

Replace worn or broken shackle pins (TM 9-2320-361-20).

Step 13. Check toe-in for improper adjustment.

Adjust toe-in (WP 0179 00).

END OF TESTING!

41. EXCESSIVE PLAY IN STEERING WHEEL

Step 1. Check steering wheel free play.

a. With engine running, place a stiff wire, which is long enough to touch steering wheel rim,

against dash.

b. Turn steering wheel left, then right, until there is resistance.

c. Mark the points on the steering wheel where the travel ends.

d. Measure the distance between these points. If there is more than 2-1/2 in. (6.4 cm) of

play, proceed to step 2.

Step 2. Check drag link for looseness and damage.

Tighten or replace drag link (WP 0181 00).

Step 3. Inspect tie rods for damage and loose ends. No free play is allowed.

Tighten or replace tie rods (TM 9-2320-361-20).

Step 4. Inspect pitman arm for damage.

Replace pitman arm if damaged (WP 0180 00).

Step 5. Inspect power steering assist cylinder for damage.

Replace power steering assist cylinder if damaged (WP 0183 00).

Step 6. If 2-1/2 in. (6.4 cm) of play still exists, the steering gear needs adjustment (TM 9-2320-361-20).

END OF TESTING!

42. SHIMMY

Step 1. Check for loose or missing wheel stud nuts.

a. Tighten wheel stud nut on hollow stud 275-300 lb-ft (373-407 Nm) and other wheel stud

nuts 390-420 lb-ft (529-569 Nm).

b. Replace any missing wheel stud nuts.

Step 2. Inspect wheels for bends and damage.

Replace bent or damaged wheels (WP 0172 00).

Step 3. Check for improper wheel bearing adjustment.

a. Raise wheels off ground.

b. Use prybar to lift up on bottom of tire. Excessive play indicates improper adjustment or

damaged bearings.

c. Adjust or replace wheel bearings (TM 9-2320-361-20).

Step 4. Check toe-in alignment.

Adjust toe-in alignment to specifications (WP 0179 00).

Step 5. Check for loose front axle steering knuckle(s). Raise wheels off ground. Turn wheels from

side to side to observe loose steering knuckle(s). If loose, notify direct support maintenance.