Multi-Piece RimSafety Procedures
Lock ring engagement, side ring removal, and controlled disassembly safety awareness for military multi-piece wheel assemblies.
Multi-Piece Rim Anatomy
Multi-piece rims used on military vehicles (two-piece, three-piece, and split-rim configurations) present significant safety hazards during disassembly. These assemblies contain stored energy from tire inflation pressure and the spring-loaded engagement of lock rings and side rings.
Understanding the component relationships is critical for safe handling — each element must be removed in the correct sequence with proper force application.
Assembly Components
Key components of a multi-piece military wheel assembly in disassembly sequence.
Outer Tire
Heavy-duty military tire — the outermost component requiring controlled bead break before rim separation.
Lock Ring
Retaining ring that secures the tire bead and side ring. Primary source of stored-energy hazards during disassembly.
Side Ring
Removable ring that seals the tire bead on one side. Must be removed after lock ring disengagement.
Run-Flat Insert
Press-fit polyurethane or composite ring that provides run-flat capability. Requires hydraulic extraction force.
Rim Base
Core wheel component. All other elements mount to or seat against the rim base surface.
GM Defensive Safety Approach
Hydraulic, controlled rim separation that eliminates the manual prying methods responsible for most multi-piece rim injuries.
Hydraulic Rim Separation
Controlled force application replaces manual methods for ring disengagement — eliminating the primary cause of multi-piece rim injuries.
Safety Shield System
Physical barrier between operator and rim components during disassembly — preventing projectile injuries.
Pressure Verification
Tire pressure must be verified at zero before any rim component handling. Machine interlocks support safe sequencing.
OSHA Compliance Support
Machine operation aligns with OSHA multi-piece rim safety standards (29 CFR 1910.177) for controlled disassembly.
Never attempt to disassemble a multi-piece rim assembly that is inflated or suspected of being under pressure. Verify zero-pressure state before handling any rim components.
Upgrade Your Rim Handling Safety
Contact our team for a safety assessment and hydraulic rim handling solutions for your fleet.