TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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I REFERENCE INFORMATION -I -1 WARNING Make sure that the am where you conduct these tests is free of natural and man-made obstructions. Failure to do so may result in serious injury. . JJRIOR TO PERFORMI~THESE TESTS, Visually inspect steering components: 1. Check all four tires and rims for wear, inflation, damage, or warping. a. Adjust tire pressure (TM Q-2320-387-10). b. Replace any unserviceable rims (para. 8-4). 2. Check steering linkage for damage. a. Replace any damaged steering linkage components (para. 8-11). b. Lubricate steering linkage (TM 9-2320-387-10). 3. Check power steering fluid for contamination and level (TM 9-2320-387-l 0). may wander. a. Drain and replace any Ruid that appears black and smells burnt. b. Bleed air from system where fluid appears milky white (para. 8-27). 4. Check serpertine drivebelt for fraying, cracks, or damage. Replace damaged serpentine drivebelt (para. 3-81). While travelling at a moderate speed (20 mph (32 kph)). apply the brakes while applying minimal pressure to the steering wheel. If pull to one side or the other occurs, make a note of the speed and on what side of the vehicle it occurs. Repeat this procedure for different speeds and braking forces. If the vehicle seems to steer straight while braking, there probably isn’t a problem with the brakes (at least not one that affects the steering). If the braking action feels strange in any way, the brake diagnostics should be run to assure vehicle safety. This test will usually reveal problems with frozen brake calipers. If the wheels are out of alignment or if the tires are worn unevenly, vehicle Symptoms of bad steering characteristics include hard steering, excesssive play in steering, a momentary increase in steering effort when turning wheel quickly, and jerking of the steering wheel when turning. TM 9-2320-387-24-l STEERING SYSTEM 2-435