Tire Servicing Program

Agenda WorkSafeBC Requirements Definitions Responsibilities General safety

Agenda De-mounting Assembly Mounting Instruction and training

WorkSafeBC Regulation Equipment Remote chuck Restraining devices Bead expander

WorkSafeBC Regulation Work Procedures Inspecting all wheel components Mounting and inflating a tire Installing and removing tire assemblies De-mounting tires

WorkSafeBC Regulation Precautions Deflate before mounting Clean and inspect Use a cage or restraining device Bead expander limits

WorkSafeBC Regulation Precautions – continued Inflate to specified pressure Do not weld or heat assembled rim Deflate multi-piece rim wheels Multi-piece rim and wheel components

WorkSafeBC Regulation Precautions – continued Dual wheel arrangement, both tires must be deflated Don’t interchange Multi-piece rim wheels

WorkSafeBC Regulation Training Required for all workers working on wheels

Definitions De-mounting Disc Wheel Installing a Tire Assembly Large Vehicle Restraining Device

Definitions Mounting a Tire Multi-Piece Wheel Rim Rim Manual Service or Servicing

Definitions Service Area Tire-Assembly Wheel Trajectory

Definitions

Responsibilities Employer Establish and implement safe work procedures Proper tools and charts are available Records of worker instruction and training

Responsibilities Supervisors Ensure workers are trained Ensure workers are following safe work procedures

Responsibilities Workers Follow safe work procedures

General Safety Issues Explosive power Service and safety manuals Current charts or rim manuals Use only recommended tools Appropriate personal protective equipment

General Safety Issues Tube tires Underinflated tire Tires driven while flat Separated tire

General Safety Issues Barriers and Restraining Devices Must be used Inspection prior to daily use Inspection after any separation of parts

General Safety Issues Barriers and Restraining Devices – continued Cracks at welds Cracked or broken components Bent or sprung components Pitting of components due to corrosion Other structural damage that may decrease its effectiveness Repair and re-inspect

General Safety Issues Airline Assembly Clip on chuck An in-line valve with a pressure gauge Sufficient length of hose

Procedures De-Mounting Tires and Rims 1.Single Piece Rims 2.Multi Piece Rims

Procedures – Demounting 1.Demounting Single Piece Rim Jack vehicle and remove wheel Remove the valve core Fully deflate the tire Run a wire through the valve stem Dual wheels – inspect inside tire assembly

Procedures – Demounting 1.Demounting Single Piece Rim - continued Do not remove de-mountable dual wheel until pressure is released Remove the wheel nuts and remove the wheel assembly Break bead according to manufacturer De-mount the tire from the narrow ledge side Never hammer on the rim

Procedures – Demounting 2.Demounting Multi Piece Rim Jack vehicle to remove wheel Remove the valve core Fully deflate the tire Run a wire through the valve stem Dual wheels – inspect inside tire assembly Deflate both tires if damage to inside wheel

Procedures – Demounting 2.Demounting Multi Piece Rim - continued Ensure all components are cleaned Ensure pressure is released Remove wheel nuts and wheel assembly

Procedures – Demounting 2.Demounting Multi Piece Rim - continued Break bead Never hammer on the rim or the lock ring Disassemble the tire assembly

Procedures - Assembly 1.Component acceptability 2.Inspect single piece rim 3.Reassemble single-piece rim 4.Inspect multi piece rim 5.Reassemble multi-piece rim

Procedures - Assembly 1.Component Acceptability Do not interchange components Inspect prior to assembly Tag damaged components and remove from area Components to be clean Check tire and wheel size and type

Procedures - Assembly 2.Inspection of Single Piece Wheel Clean and examine wheel, valve stems and tire carefully Paint the rim with a metal primer where necessary Inspect the inside of the tire

Procedures - Assembly 3.Reassembly of Single Piece Rims Replace stems or grommets Lubricate tire beads and mating surfaces Replace old O-Rings Work tire beads one at a time over rim flange Tire changing machine

Procedures - Assembly 3.Reassembly of Single Piece Rims - continued Do not apply heat Do not use flammable substances to seat beads Use restraining device when inflating Do not inflate if flat, solid surface is in trajectory Stay out of trajectory when inflating

Procedures - Assembly 3.Reassembly of Single Piece Rims – continued Remove bead expander Clip-on air chuck Stand outside the trajectory Ensure wheels are lined up Inspect the tire and rim Do not rework damaged wheels

Procedures - Assembly 4.Inspection of Multi Piece Rims Look for signs of cracking, wear, corrosion, deformation, broken beads: Sprung side/lock rings Cracked rings/rims Bent flanges Tool marks Loss of contour Metal thickness of the mating surfaces

Procedures - Assembly 5.Reassemble Multi Piece Rims Replace old O-Rings Lubricate Put the rim parts into place Never “air-up” a wheel of which you are unsure

Procedures - Assembly 5.Reassemble Multi Piece Rims - continued Inflate to 10 psi and ensure that parts fit Inflate to manufacturer’s specifications Stay out of trajectory when inflating

Procedures - Assembly 5.Reassemble Multi Piece Rims - continued Do not apply heat Do not use flammable substances Inflate to recommended pressure Deflate completely Re-inflate to the manufacturer’s recommended pressure Re-check before removing from restraining device

Procedures - Mounting Mounting Disc Wheels Check wheel studs for damage Check tire diameters on dual wheels Check tires for separations Ensure mounting surfaces are clean

Procedures - Mounting Mounting Disc Wheels – continued Use the proper cap nuts Use proper tightening sequence and torque levels Use air wrenches only to spin on the nuts Recheck and retighten cap nut at 80k to 160k

Procedures - Mounting Mounting Demountable Tire Assemblies Check all studs, clamps, spacer bands Check diameters of tires Do not mix tire types on the same axle Ensure mounting surfaces are clean and smooth

Procedures - Mounting Mounting Demountable Tire Assemblies - continued Place inflated tire assembly on wheel Guard against misalignment Install proper rim clamps and nuts Use proper tightening sequence / torque levels Recheck / retighten clamp nuts after 80k to 160k

Instruction and Training Worker instruction and training must include: De-mounting of tires Inspection and identification of rim wheel components Installing and removing rim wheels Mounting of tires

Instruction and Training Worker instruction and training - continued Use of a restraining device or barrier Handling of rim wheels Inflation of a tire Understanding trajectory

Summary WorkSafeBC Definitions Responsibilities General safety Procedures Requirements for worker instruction and training

Questions