HUB PILOT WHEEL INSTALLATION
We have incorporated a wheel torquing policy effective immediately. In this process, there are key steps that must be followed each and every time. These steps have been labeled the R.I.S.T. procedure.
R stands for REMOVE all rust and debris from all mounting surfaces and attaching components. This should include Wheel rims, hubs, studs, flange nuts, drums, etc.
I stands for INSPECT wheel rims, hubs, studs, flange nuts, drums, and any other mounting surfaces or components
S stands for SNUG all fasteners is a star pattern starting at the 12:00 position. The correct snugging process should leave the first fastener loose once finished.
T stands for TORQUE to specifications. For hub pilot wheels with an M22 stud and a 33MM flange nut, the specification is 450 to 500 Ft Lbs. The torque wrench is preset to 475 Ft Lbs.
POINTS TO REMEMBER:
- Remember to clean the pilot pads, as this part is what centers the wheel on the hub
- Be sure to check all studs for over-torque of stretched conditions
- Debris between mounting surfaces will cause joint settling and lose wheels
- 2 to 3 drops of motor oil on the end of the stud and between the nut and flange
- Use the wheel centering pins
- Nut body and flange should turn against each other. Replace if they do not
- Replace nut if flange has become separated from nut body
- Using a ½” drive impact gun to snug the flange nuts will greatly reduce the possibility of over torquing the fasteners before the torque wrench is applied
- If the torque wrench clicks before the nut turns the fastener is already over-torqued and must be loosened and torqued.
Every task that has a truck tire installed, 20”-24.5 must have a technician comment that the nuts were tightened with the tire torque wrench.