WORKING WITH TIRES AND RIM ASSEMBLIES
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330-013-38-IGSO © 2019, Workplace Safety & Prevention Services (WSPS)
1 877 494 WSPS (9777) | 905 614 1400 | wsps.ca
Before dismounting a tire, remove the valve core from the tire to ensure it is fully deflated; probe the valve
stem to make sure valve is not plugged
Know and follow the procedures for the tire changer in the equipment supplier's operating manual, or your
shop safety manual
If you use a tire changer, inflate the tire only enough to force the tire bead onto the rim ledge, then remove it
from the changer
Replace damaged or leaky tire valves
Before loosening lug nuts on dual wheels, exhaust all the air from both tires so that a broken or cracked rim
part will not blow apart under pressure
Do not apply heat to or repair a rim with a tire mounted on it; heat can increase the air pressure enough to
burst the tire or rim
Keep rim flanges and gutter, rings, bead seating surfaces, and the bead areas of tires free of dirt, rust, scale, etc.
After you have sealed the beads, adjust air pressure to the manufacturer's recommended cold operating
pressure
Before assembly, check the size (bead diameter and tire-wheel widths) and the type of the tire and the rim for
compatibility
Do not attempt to modify, rework, weld, heat, or braze rim parts in anyway; replace damaged parts with the
same size, type, and make
Do not use a hammer to correct the seating of the side and lock rings
Hazard: Weight of the Tire and Rim Assembly
Details
Tires and rim assemblies are very heavy and require proper lifting techniques.
Threat
Serious back, hand, or foot injuries
Safe Work Guidelines
Wear approved personal protective equipment (e.g., safety glasses, steel-toed safety shoes, and leather or
canvas gloves, etc.)
Fully deflate all tires before removing
Protect against back injuries by following these guidelines:
– Raise the vehicle just enough to remove or install the tire
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