Nut Torquing and Back-Off to Set Wheel Bearings
Skill Level: Easy to Difficult | Special Tools: None
Adjust Wheel Bearings
To meet correct end play specifications, follow this six-step procedure for nut torquing and back off:
- Torque the adjusting nut to 200 lbf-ft while oscillating the wheel. This will fully seat the bearing components.
- Back off the adjusting nut one full turn or until it is loose.
- Torque the adjusting nut to 50 lbf-ft while rotating the wheel hub assembly to establish end play.
- Back off the inner (adjusting) nut the amount indicated in the chart below.
- On a single-nut system, install a cotter pin. On a double-nut system, install a jam nut and torque it to the proper specification indicated in the chart below.
- Use a dial indicator to verify end play (free movement) of the tire and wheel assembly along the spindle axis.
Failure to observe the following warnings could create a risk of death or serious injury.
Failure to follow these cautions may result in property damage.
TechTips is not intended to substitute for the specific recommendations of your equipment suppliers. Every reasonable effort has been made to ensure the accuracy of the information contained in this writing, but no liability is accepted for errors, omissions or for any other reason.