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TM 9-2320-386-24-1-1
0010 00
Unit Mechanical Troubleshooting (Contd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 10. Check steering assist cylinder for internal leakage.
a. Ensure wheels are straight ahead.
b. Build up air pressure to 120 psi (827 kPa). Shut down engine.
c. Slowly disconnect air hose from drag link.
d. Turn steering wheel and extend drag link a full turn. If a substantial amount of air
leaks from the disconnected hose, replace steering assist cylinder (WP 0183 00).
END OF TESTING!
40. VEHICLE WANDERS OR PULLS TO ONE SIDE
Step 1. Check front tires for underinflation and uneven tire pressure.
Inflate tires to proper pressure (TM 9-2320-386-10).
Step 2. Check front tires for uneven wear (indicates alignment problem).
Adjust toe-in to specifications (WP 0179 00).
Step 3. Check for dragging service brakes.
Raise wheel(s) off ground and spin wheels by hand. Wheels should turn with slight drag. If
wheels bind, adjust service brake (TM 9-2320-361-20).
Step 4. Check for contaminated service brakeshoes.
a. Remove hub and drum (WP 0173 or WP 0172 00).
b. Check wheel cylinder for leaks and damage. Replace wheel cylinder if leaking or
damaged (TM 9-2320-361-20).
c. Check service brakeshoes for contamination. Replace service brake shoes if
contaminated (TM 9-2320-361-20).
Step 5. Check for defective master cylinder.
a. Direct assistant to pump brakes.
b. Check master cylinder for leaks.
c. Replace master cylinder if brake fluid leaks from dust boot area (WP 0155 00).
Step 6. Check for defective air-hydraulic booster.
a. Repeat steps 3 through 5.
b. Replace air-hydraulic booster (WP 0157 00).
Step 7. Check wheel bearings for proper adjustment and damage. Raise wheels off ground. Use prybar
to lift up on bottom of tire. Excessive play indicates improperly adjusted or damaged bearings.
a. Adjust wheel bearings (TM 9-2320-361-20).
b. Replace damaged bearings (TM 9-2320-361-20).
Step 8. Inspect power steering assist cylinder for damage.
Replace power steering assist cylinder if damaged (WP 0183 00).
Step 9. Inspect tie rod for looseness and damage.
Tighten or replace tie rod assembly (TM 9-2320-361-20).
Step 10. Check for loose steering gear mounting bolts.
Tighten if loose.

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