Axles & Suspension

Maintenance intervals, the 50-mile check and fastener grades.

Lessons

1. 01The 50-Mile CheckFirst re-torque on a new trailer.
2. 02Recurring IntervalsEvery use, weekly, 3/6/12 months.
3. 03Brakes, Oil Caps & Bolt GradesOther common torque values.
4. 04Prepare and Support the Trailer SafelySeparate trailer support from axle support before beginning suspension service.
5. 05Check Loading, Level Tow, and Axle AlignmentUse trailer ratings, scale measurements, and axle alignment references to evaluate loading and tracking.
6. 06Recognize Suspension Wear and Service NeedsInspect springs, mounting parts, and tires for evidence of damage, looseness, overloading, or alignment problems.
7. 07Service Double-Eye Leaf SpringsFollow the documented removal, orientation, assembly, and verification sequence for a double-eye spring replacement.
8. 08Select and Apply U-Bolt TorqueMatch the installed axle and hardware configuration to its applicable torque specification.
9. 09Service Equalizer and Shackle ConnectionsControl axle movement and follow the documented bolt seating and shackle-position checks during equalizer service.
10. 10Inspect a Torsion Suspension SystemIdentify the torsion system's load-resisting components and inspect its mounting and movement.
11. 11Axle Beam Replacement: Support, Orientation and ReassemblyControl a replacement beam separately from the trailer and restore its documented mounting arrangement.