Peterbilt Medium Duty Trucks Operator's Manual after 1-07

Tires and Wheels
Preventive Maintenance
Table 8
Wheel Cap Nut Torque
WHEEL & NUT
CONFIGURATION
Steel Disc-Type Wheel; Double Cap Nut Mounting; Standard
7/8” Radius Ball Seat or Flanged Nuts:
Alum. Disc-Type Wheel; Double Cap Nut Mounting; Standard
7/8” Radius Ball Seat or Flanged Nuts:
Heavy-Duty Steel Disc-Type Wheel; Double Cap Nut Mounting; 1-
3/16” Radius Ball Seat:
STUD SIZE
DYNAMIC TORQUE FOR
INNER & OUTER CAP
NUTS & RIM CLAMP NUTS
N.m
Lb–Ft
3/4-16 545–630 400–465
1-1/8-16 545–630 400–465
3/4-16 530–625 390–460
1-1/8-16 530–625 390–460
15/16-12 1020–1090 750–800
1-1/8-16 885–950 650–700
1-15/16-12 1020–1090 750–800
Hub-Piloted Disc-Type Wheel w/Two Piece Flanged Cap Nuts:
Steel Wheel 505–590 370–435
Budd Nut w/Teflon Coating:
Alum. Wheel 475–580 350–425
Motor Wheel Nut: Steel Wheel 545–630 400–465
Alum. Wheel 530–625 390–460
Stud Backnuts (when used) 3/4-16 240–270 175–200
1-14 240–410 175–300
Heavy-Duty Cast Wheel w/Demountable Rim: 1-8 585–640 430–470
1-12 585–640 430–470
1-14 585–640 430–470
Rockwell or Clark Demountable Rims on Planetary Axles 3/4-10 270–305 200–225
– 174 – Y53-6008 Medium Duty (R10/06)