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2013 GCAA Workshop Building the future with green technology in a lean economy

2013 GCAA Workshop Building the future with green technology in a lean economy. 2013 GCAA Workshop Building the future with green technology in a lean economy. Tire Safety Rim & Tire Maintenance. Safety Topics. Tire Safety How long does it take to be safe?

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2013 GCAA Workshop Building the future with green technology in a lean economy

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  1. 2013 GCAA WorkshopBuilding the future with green technology in a lean economy

  2. 2013 GCAA WorkshopBuilding the future with green technology in a lean economy

  3. Tire SafetyRim & Tire Maintenance

  4. Safety Topics • Tire Safety • How long does it take to be safe? • Accidents happen in a matter of seconds! • Rim Maintenance • Lock ring; the most important component of the wheel/rim • Proper fitment is a MUST! • Tire Maintenance • Tire pressure; biggest single factor affecting tire performance

  5. Safety Share • Always use proper techniques before re-inflation or adding air to tires

  6. Serviceman Qualifications and Training MSHA Training TIA Training Classes Basic Safety Does the serviceman follow these basic safety practices: Wearing PPE – safety shoes, eye protection, hard hat, etc. Wheel chocking Locking out equipment Proper cribbing or jack stands Proper use of outriggers Are proper tools used at the job site: Jacks, air guns, rams, etc. Does the serviceman come prepared to the job site with proper spare parts: (1) O rings, valve hardware, spare wheel parts, etc. Tire Servicing – what to look for

  7. 46.14104 Tire Repairs Before a tire is removed from a vehicle for tire repair, the valve core shall be partially removed to allow for gradual deflation and then removed. During deflation, to the extent possible, persons shall stand outside of the potential trajectory of the lock ring of a multi piece wheel rim. To prevent injury from wheel rims during tire inflation, one of the following shall be used: A wheel cage or other restraining device that will constrain all wheel rim components during an explosive separation of a multi-piece wheel rim, on during the sudden release of contained air in a single piece rim; or A stand-off inflation device which permits persons to stand outside of the potential trajectory of wheel components. MSHA’s 30 CFR

  8. Cribbing the Truck

  9. Proper Bolting of Lug Nuts Make sure the boom is securing the tire and rim

  10. Stand-off Inflation

  11. A Tire/Rim assembly is a pressure vessel It must: be strong be durable be flexible transmit torque change vehicle direction offer low rolling resistance be cheap and last forever

  12. Every time a tire is removed from a wheel or rim, there should be a complete inspection to look for factors that would make the rim unsafe or unusable. Safe Tire Removal

  13. Breaking Down the Bead Seat Band

  14. Cleaning the Rim Base

  15. Cleaning the Wheel Components

  16. Earthmover 5 Piece Wheel O-Ring Groove 6 4 1 2 3 5 1 Rim Base 2 Inside Flange 3 Outside Flange 4 Bead Seat Band 5 Lock Ring 6 O-Ring 2 3 4 5 1 6

  17. Most important component of the rim Solely contain the air pressure in the tire/assembly Over 50% of wheel-related fatalities are related to: Improper use Fitment Installation errors Lock rings

  18. Lockrings

  19. Two Piece Lock Ring with Bolted Connection – Possible Future State

  20. Wide variety of wheels and rims Insure correct parts are used together Proper component fitment

  21. Rim markings

  22. Flange Cracking Before rim inspection, insure that it is clean Servicemen put too much emphasis on speed Allow time for proper cleaning of all dirt, rust, etc. Allow time for proper inspection before putting the tire back in service

  23. Bead Seat Band Rim base is corroded and worn Tire Life should have been used to eliminate rusting Use of this rim in this condition will lead to improper fitting and other problems.

  24. Flanges Flange on the right is worn and unusable Use could lead to tire failure in the sidewall Use of proper height flanges gives proper amount of deflection

  25. fractures Back Section Fractures Gutter Section and Bead Seat Fractures

  26. fractures Flange Fractures Bead Seat Band Fractures

  27. Missing the Driver Block

  28. Results of Missing the Driver Block

  29. Lubing the Beads

  30. Improper mount

  31. Improper Mount

  32. Correct pressure is the single biggest factor affecting performance Different manufacturers have different pressure recommendations for a given application Pressure maintenance should be as important as checking the oil Calibrated gauges are essential Tire pressure

  33. Damages Related to Over-Inflation 115 Psi 95 Psi

  34. Damages Related to Over-InflationTread cuts & Chunking View under tread Not Over-inflated Cuts through tread x3 Over-inflated

  35. Damages Related to Over-InflationTread cuts & Chunking View under 2nd protection ply 95 Ply Rupture of 1st protection ply x3 115Ply

  36. Damages Related to Over-InflationReduced Impact/Puncture Resistance

  37. Damages Related to Over-DeflectionCracks in the Bead Area

  38. Control of deflection in the tire is important Bead and sidewall damages increase with over deflection Heat build up increases with over deflection Over inflation creates problems with tread/crown area Tire pressure Summary

  39. Safe Procedures for Checking Air Pressure

  40. Questions

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