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Overview of Meritor PreSet® hub assemblies for trailer, steer, and drive axles.
Details the hub pilot wheel mounting system for single and dual wheel applications.
Explains identification decals for wheel end types on trailers.
References warranty information and procedures for obtaining it.
General safety warnings and precautions for maintenance procedures.
General inspection steps and intervals for hub assemblies.
Specific steps to check for oil or grease leaks around the hub.
Guidance on identifying and addressing lubricant contamination in hubs.
Instructions for measuring wheel bearing end play using a dial indicator.
Critical safety warnings and precautions for removal and disassembly.
Step-by-step instructions for safely removing the hub assembly from the axle.
Procedures for cleaning, drying, and preparing hub assembly components.
Detailed inspection of bearing cups, cones, rollers, and races for wear or damage.
Guidelines for removing and installing wheel studs, including safety precautions.
Procedures for inspecting, removing, and installing the ABS tooth wheel.
Steps for lubricating and installing bearings, seals, and spacers into the hub.
Instructions for filling oil-lubricated and grease-lubricated hubs.
Steps for installing brake drums and wheels, including tightening sequences.
Table of torque values for various fasteners like nuts, studs, and plugs.
General| Bearing Type | Tapered roller bearings |
|---|---|
| Load Capacity | 23, 000 lbs (10.4 tonnes) |
| Lubrication | Oil lubricated |
| Maintenance Interval | 500, 000 miles or as per OEM recommendations |
| Features | Pre-adjusted bearing setting, integrated wheel end, robust design |
| Wheel End | Integrated, pre-set for reduced maintenance |
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