Arkansas Trucking Association Maintenance Council

Transcription

1 Arkansas Trucking Association Maintenance Council Tire Knowledge and Maintenance 1/29/2015

2 Larry Rambeaux, Sales and Service Engineer Purkeys Jack Henshall, Territory Service Manager Eaton Corporation Dave Luethy, Commercial Sales Manager Bridgestone Commercial Solutions Kenneth Post, Store Manager Southern Tire Mart

3 Tire Construction Inflation Tire Storage Tire Mounting & Dismounting Tire Maintenance and Conditions Guide Conclusion

4 Supports the load Absorbs road shock Transfers traction and braking forces to the road surfaces Changes and maintains the direction of vehicle travel

5 Rubber Natural about 45% in New tire; 5% in Retread Synthetic Tire Cord Polyester Rayon Nylon Steel Chemicals Carbon black Sulfur Other chemicals

6 Tread Belts Casing Bead

7 SECTION 1 Radial body ply cables run from bead to bead RADIAL BODY PLY CABLES 7

8 SECTION 1 Radial body ply cables provide strength to contain the inflation pressure. Plies are sealed and held in alignment by rubber. 8

9 SECTION 1 Radial Body Ply Bead Bundle Bead Heel Chafer Bead Sole Bead Toe 9

10 SECTION 1 P rotector Ply S tabilizer Belts T ransition Ply 10

11 SECTION 3 Bead diameter 295/75R m m 220m m

12 Single most important factor in tire life (Tires do not carry the load, air carries the load) Over Inflation and under inflation affect tire footprint Under Inflated Correct Over Inflated Changes in footprint affect Rate of wear Irregular wear Traction Braking

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14 SECTION 4 Load-Carrying capacity is the ability of a tire to contain enough inflation pressure to support a specific load Ply rating and load range mean the same thing Based off of Cotton Ply strength. Load Range G = 14 Ply rating. 14

15 Tire Size: 11R22.5 Steer axle weight: 12,000 lbs (6,000 per tire) Load Range G Load and Inflation Tables TIRES FOR TRUCKS, BUSSES AND TRAILERS USED IN NORMAL HIGHWAY SERVICE TIRE SIZE DESIG- NATION 8*19.5 TIRES MOUNTED ON 15 TIRE LOAD LIMITS (LBS..) AT VARIOUS COLD INFLATION PRESSURES (PSI) (The pressure is minimum for the load) RADIAL PLY USAGE DIAGONAL (BIAS) PLY DUAL D E F SINGLE D E F o 9* * R * * *24.5 DUAL E F G SINGLE E F G DUAL E G SINGLE E F G DUAL SINGLE F G H F H DUAL F G H SINGLE F G H DUAL F G H SINGLE F G H DUAL F G H SINGLE F G H * Tire size designation will include R (Radial) or - (Bias) -- Letters denote Load Range for which yellow loads are maximum 6040G

16 Store tires in safe dry place Keep repairable tires inside Don t store tires in or near grease, fuel or oil Keep tires or casings organized

17 SECTION 2 17

18 SECTION 2 18

19 SECTION 2 19

20 SECTION 2 Zipper Rupture! SAFETY WARNING 20

21 SECTION 3 Lubricate top and bottom flange of (or rim) to prevent mismount. wheel 21

22 SECTION 3 Feel tire sidewall for evidence of potential zipper rupture! SAFETY WARNING 22

23 SECTION 3 Lubricate both tire beads to prevent mismount. 23

24 SECTION 3 Push bottom bead onto wheel (or rim) 24

25 SECTION 3 Push bottom bead over flange and onto wheel (or rim) 25

26 SECTION 3 Push top bead onto wheel (or rim) 26

27 SECTION 3 Push top bead over flange and onto wheel (or rim) 27

28 SECTION 3 Place tire into safety cage 28

29 SECTION 3 Inflate tire to 20 psi! SAFETY WARNING 29

30 SECTION 3 Check the tire for potential zipper rupture 30

31 SECTION 3 Inflate to fleet standard inflation pressure 31

32 SECTION 4 Break bead from seat 32

33 SECTION 4 Lubricate top bead 33

34 SECTION 4 Use tire mounting/demounting tool to lift bead over flange 34

35 SECTION 4 Work mounting/demounting tool around bead until top bead is over flange 35

36 SECTION 4 Stand tire up and lubricate bottom bead 36

37 SECTION 4 Lift bead over flange 37

38 SECTION 4 Remove tire from wheel (or rim) 38

39 Tire Maintenance & Condition Guide

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