Pretrip Inspection and Daily Maintenance and hubs and see Group 40 of the same manual for wheel and tire servicing. Replace broken, cracked, badly worn, bent, rusty, or sprung rings and rims. Be sure that the rim base, lockring, and side ring are matched according to size and type. A B C WARNING 11/03/94 f400062a A. Tire correctly inflated. B. Tire overinflated. C. Tire underinflated. Have any worn or damaged wheel components re- placed by a qualified person using the wheel manu- facturer’s instructions and the wheel industry’s standard safety precautions and equipment. Other- wise a vehicle or workshop accident could occur, possibly resulting in serious personal injury or death. Fig.
9.6, Tire Inflation 38. Check for indications of loose wheel nuts or rim nuts and examine each wheel component. Check the wheel nuts or rim nuts for indications of looseness. Remove all dirt and foreign material from the assembly. Dirt or rust streaks from the stud holes, metal buildup around stud holes or out- of-round or worn stud holes may be caused by loose wheel nuts. See Group 40 of the Cargo Maintenance Manual for torque specifications and the correct tightening sequence. CAUTION Insufficient wheel nut (rim nut) torque can cause wheel shimmy, resulting in wheel damage, stud breakage, and extreme tire tread wear.
Excessive wheel nut torque can break studs, damage threads, and crack discs in the stud hole area. Use the rec- ommended torque values and follow the proper tightening sequence. Examine the wheel assembly components (includ- ing rims, rings, flanges, studs, and nuts) for cracks or other damage. 39. Check components of the air brake system for cor- rect operation as follows: See Group 33 and Group 35 of the Cargo Work- shop Manual for service procedures on the studs 9.20