wheel studs - CBS Parts Ltd.

DISC WHEEL SERVICE INFORMATIONINSTALLATION TIPS1. Never mix hub-piloted and stud-piloted w heels, hubs and nuts. The result could be loss of torque, a cracked w heel orpossible w heel loss.2. For nuts used on hub-piloted w heels, apply tw o drops of oil to a point betw een the nuts and flanges and tw o drops to thelast 2 or 3 threads at the end of each stud. Also, lightly lubricate the pilots on the hub to ease w heel installation and removal.Do not get lubricant on the mounting face of the drum or w heel.3. For nuts used on stud-piloted w heels, do not use lubrication. Never lubricate w heel or nut ball seats or mounting faces.If lubrication is used, consult the w heel manufacturer for torque recommendations.4. Install nuts using proper installation sequence as show n below . Snug up nuts to about 50 ft.lbs. Torque. Do not tightenfully until all have been seated; then torque to specs as show n below using the same installation sequence.5. After a w heel assembly has been installed, recheck the torque level betw een 50 and 100 miles of operation and retightenif necessary to the recommended torque using the proper sequence.a. To check and retorque an inner cap nut, it is necessary to loosen the outer cap nut first; then tighten the inner capnut. Outer cap nuts then must be retightened to the proper level.b. It is recommended that a torque check be made as part of a vehicle's scheduled maintenance program or at 10,000mile intervals, w hichever comes first.TORQUE CHARTMOUNTING TYPE NUT THREAD TORQUE LEVELHub-piloted with flange nut 11/16" - 16 300-400 ft. lbs (oiled)*M20 x 1.5280-330 ft. lbs (oiled)*M22 x 1.5450-500 ft. lbs (oiled)*Stud-piloted, double cap nut - 3/4" - 16 450-500 ft. lbs (dry)*standard type 1-1/8" - 16 450-500 ft. lbs (dry)*(7/8" ball seat radius)Stud-piloted, double cap nut - 15/16" - 12 750-900 ft. lbs (dry)*heavy-duty type 1-1/8" - 16 750-900 ft. lbs (dry)*(1-3/16" ball seat radius) 1-5/16" - 12 750-900 ft. lbs (dry)** See Installation Tip #2 (above)Information courtesy of TMC (The Maintenance Council of The American Trucking Association). For complete w heel serviceguidelines see TMC RP-222, "User's Guide to Wheels and Rims".2-62