Tire Servicing Program

1. Tire Servicing Program

2. Agenda • WorkSafeBC Requirements • Definitions • Responsibilities • General safety

3. Agenda • De-mounting • Assembly • Mounting • Instruction and training

4. WorkSafeBC Regulation • Equipment • Remote chuck • Restraining devices • Bead expander

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

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

7. 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

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

9. WorkSafeBC Regulation • Training • Required for all workers working on wheels

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

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

12. Definitions • Service Area • Tire-Assembly • Wheel • Trajectory

13. Definitions

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

15. Responsibilities • Supervisors • Ensure workers are trained • Ensure workers are following safe work procedures

16. Responsibilities • Workers • Follow safe work procedures

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

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

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

20. 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

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

22. Procedures De-Mounting Tires and Rims • Single Piece Rims • Multi Piece Rims

23. Procedures – Demounting • 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

24. Procedures – Demounting • 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

25. Procedures – Demounting • 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

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

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

28. Procedures - Assembly • Component acceptability • Inspect single piece rim • Reassemble single-piece rim • Inspect multi piece rim • Reassemble multi-piece rim

29. Procedures - Assembly • 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

30. Procedures - Assembly • 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

31. Procedures - Assembly • 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

32. Procedures - Assembly • 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

33. Procedures - Assembly • 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

34. Procedures - Assembly • 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

35. Procedures - Assembly • 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

36. Procedures - Assembly • 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

37. Procedures - Assembly • 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

38. 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

39. 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

40. 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

41. 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

42. 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

43. 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

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

45. Questions