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What should I know when disassembling split rim wheels? Ensure that you are trained before working on a tire/rim assembly.

What should I know when disassembling split rim wheels?

Do not inflate any tire if: Such tires should always be deflated completely, removed from the vehicle, disassembled, and inspected. If the tire is in a dual assembly, check the air pressure in both tires with an air pressure gauge. An under-inflated tire may not otherwise be detected when the other tire supports the weight of the vehicle or trailer.

administrative Ensure that you are trained before working on a tire/rim assembly. Know, understand, and follow the proper safety procedures. Serious or fatal injuries can result if proper precautions are not followed.
requirement Use mechanical lifting and moving devices for the tires and wheels.
administrative Follow the manufacturers' assembly and disassembly procedures.
requirement Check tire and rim assembly for proper component seating before removing it from the vehicle.
requirement Stand to the side, out of the way of flying wheel parts, in case the assembly disassembles explosively. Make sure that no other workers are in the trajectory zone.
requirement Always deflate the tire before removing wheel nuts on any multi-piece tires that are to be removed from their hubs.
requirement Deflate tires (both tires in a dual assembly) by first removing the valve core. Insert a wire in the valve stem to ensure that the stem is not blocked and that the tire is deflated completely before removing the rim/wheel from the axle.
requirement it has been driven under-inflated by 80 percent or less of its recommended pressure or
requirement there is obvious or suspected damage to the tire or wheel components.

What are some tips for rim inspections?

requirement Check that the proper tire size and construction match the manufacturer's rim or wheel rating and size. The tire size must match the size of the rim. Rims or wheels may accommodate tires of various widths. Check with the manufacturer's specifications.
requirement Check rim parts against the multi-piece rim and wheel matching chart.
requirement Check all metal surfaces for rust, corrosion, cracks, bent flanges, sprung rings, and deep tool marks on rings or in gutter areas.
requirement Clean and repaint lightly rusted rims. Remove all dirt and other foreign material from metal surfaces.
requirement Use parts that are in good condition: destroy and dispose of parts that are corroded, bent, out-of-round, cracked or otherwise damaged.

When assembling split rims, what should I do?

context Wear approved safety glasses.
context Check the tire for cracks, cuts, and penetrating objects.
context Make sure that removable rings are properly seated before inflating.
context Use a suitable tire lubricant that is tended for use with rubber products, and that will not promote the corrosion of the metal rims.
context Place the tire in a safety cage large enough for tire expansion before inflating the tire.
context Inflate the tire using a clip-on air chuck and hose extension with an in-line pressure gauge and valve.
context Use remote control inflation equipment.
context Stand clear of the tire during inflation and make sure that no other person is in the trajectory path during inflation.
context Inflate in incremental stages in steps of 70kPa (10psi). Check the rim after each stage to ensure correct seating.
context Inflate the tire while the rim/wheel is on the vehicle if the tire is under-inflated but has more than 80 percent of the recommended pressure.
context Inspect the tire, rims, and rings for proper seating after the tire is fully inflated. If the tire is not well-seated, deflate the tire, inspect all parts, and follow proper re-assembly and inflation procedures.
context Remove the properly inflated tire from the restraining device.
context Install the vehicle's wheel correctly, ensuring that the correct parts are used, that the nuts are tightened in the proper order, and that the recommended torque is applied.

What should I avoid doing?

engineering Do not inflate tires on split rims that are not contained behind a safety cage or guard.
requirement Do not stand in front of or over the rim during inflation.
requirement Do not attempt to seat rings while the tire is partially or totally inflated.
requirement Do not re-inflate or add inflation pressure to a tire that has been run flat or is seriously under-inflated without removing and checking for ring seating and rim damage.
requirement Do not use damaged, worn, or corroded rims/wheels or mounting hardware.
requirement Do not use an assembly with excessive side ring play, wide gaps between ring ends, or butting ring ends unless specified by the manufacturer.
requirement Do not use a rim/wheel component you cannot identify.
requirement Do not rework, weld, braze, or otherwise heat wheel components.
requirement Do not hammer on components of an inflated or partially inflated assembly.