Front

The front wheel bearings are of a cartridge design and are pregreased, sealed and require no scheduled maintenance. The wheel bearings are preset and cannot be adjusted. If a bearing is disassembled for any reason, the wheel hub must be replaced. No individual service seals, rollers or races are available. The front axle wheel hub retainer torque of 230 - 275 Nm (170 - 202 ft. lbs.) restricts bearing/hub relative movement and maintains axial position of the wheel hub. Due to the importance of the front axle wheel hub retainer torque/tension relationship, take the following precautions during service:

1. Since the wheel bearing cannot be adjusted, the front axle wheel hub retainer must not be backed off after reaching the required torque of 230 - 275 Nm (170 - 202 ft. lbs.) during installation.
2. The front axle wheel hub retainer must be replaced with a new front axle wheel hub retainer whenever the front axle wheel hub retainer is backed off or removed. Never reuse the front axle wheel hub retainer.
3. Power tools must not be used to tighten the front axle wheel hub retainer or bearing damage will result.
4. To remove the front axle wheel hub retainer, apply sufficient torque to the nut to overcome the prevailing torque feature of the front axle wheel hub retainer.