GOODYEAR EARTHMOVER TYRES OFFTHEROAD TYRE REMOVAL ANALYSIS PRESENTATIONAME

GOODYEAR EARTHMOVER TYRES OFF-THE-ROAD TYRE REMOVAL ANALYSIS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 1

GOODYEAR EARTHMOVER TYRES TREAD BELTS PLY BARRIER BASE CUSHION V LINER WEDGE SIDEWALL RADIAL - TURN-UP INSERT CONVENTIONAL MOLD CHIPPER PAD RUBBER CHAFER CHIPPERS APEX BEAD PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 2

GOODYEAR EARTHMOVER TYRES RADIAL SEGMENTED MOLD PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 3

GOODYEAR EARTHMOVER TYRES BIAS BELTED PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 4

GOODYEAR EARTHMOVER TYRES BIAS - INDUSTRIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 5

GOODYEAR EARTHMOVER TYRES INSPECTING A FAILED TYRE • AREAS TO LOOK AT: • BEAD • TREAD –CUTS –SEPARATIONS –FLANGE EROSION –CRACKING • SHOULDER • LINER –CUTS –SPLITS –SEPARATIONS –LIFTING LINER • SIDEWALL –WRINKLED LINER –CUTS –LOOSE FABRIC –SEPARATIONS –REPAIR FAILURES –RADIAL SPLITS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 6

GOODYEAR EARTHMOVER TYRES TREAD AREA REMOVALS TREAD BELTS BASE PLY BARRIER CUSHION RADIAL LINER V BIAS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 7

GOODYEAR EARTHMOVER TYRES WORN OUT - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 8

GOODYEAR EARTHMOVER TYRES WORN OUT / TREAD CENTRELINE CHUNKOUT - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 9

GOODYEAR EARTHMOVER TYRES WORN OUT - BIAS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 10

GOODYEAR EARTHMOVER TYRES WORN OUT SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • TREAD SURFACE APPEARS SMOOTH WITH TREAD PATTERN BARELY DISTINGUISHABLE • MANUFACTURING • A RADIAL TYRE IS CONSIDERED WORN OUT WHEN THE TOP STEEL BELT IS VISIBLE. A BIAS TYRE IS WORN OUT WHEN THE NYLON CARCASE PLY IS VISIBLE AND OR WORN THROUGH (TREAD) • NONE • OTHER FEATURES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA • NONE 11

GOODYEAR EARTHMOVER TYRES TREAD ROCK CUT SEPARATION - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 12

GOODYEAR EARTHMOVER TYRES TREAD ROCK CUT SEPARATION - RADIAL, BIAS SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • TYRE WILL HAVE A ROCK CUT DOWN TO THE BELT PACKAGE OR OUTER NYLON CARCASE PLY • UNTIDY PIT FLOORS AND DUMPS • POOR CLEANUP PRACTICES • OPERATORS DRIVING OVER SPILLAGE OR BACKING UP ONTO ROCKS AT LOADING AREA • SEPARATION WILL GENERALLY BE IN THE TYRE A WHILE BEFORE FAILING AND SO WILL HAVE RUSTED BELTS (RADIAL) • MOSTLY ASSOCIATED WITH SITES WHERE TKPH REQUIREMENT IS CLOSE TO OR BEYOND THE TYRE LIMIT • NO HEAT DAMAGE PRESENT • AREAS OF LIFTING TREAD RUBBER • OTHER FEATURES • MANUFACTURING • FLEX CYCLE OF THE TYRE CAUSES ROCK CUT TO DISSIPATE INTO SEPARATION PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA • NONE 13

GOODYEAR EARTHMOVER TYRES TREAD IMPACT - RADIAL, BIAS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 14

GOODYEAR EARTHMOVER TYRES TREAD IMPACT PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 15

GOODYEAR EARTHMOVER TYRES TREAD IMPACT SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • TYRE WILL HAVE A LARGE RADIAL SPLIT / RUPTURE • UNTIDY PIT FLOORS AND DUMPS • POOR CLEAN UP PRACTICES • USUALLY WILL HAVE BELTS OR CARCASE FABRIC PROTRUDING FROM THE RUPTURE • VEHICLE OPERATORS DRIVING OVER SPILLAGE OR BACKING UP ONTO ROCKS • LINER WILL HAVE A LARGE RADIAL SPLIT, NORMALLY SINGLE • HIGH TKPH REQUIREMENT • OTHER FEATURES • MANUFACTURING • RADIAL OFTEN CHARACTERISED BY A “Y” BREAK • NONE • BIAS OFTEN CHARACTERISED BY AN “X” BREAK PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 16

GOODYEAR EARTHMOVER TYRES TREAD TONGUE OUT - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 17

GOODYEAR EARTHMOVER TYRES TREAD TONGUE OUT - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 18

GOODYEAR EARTHMOVER TYRES TONGUE OUT SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • TYRE WILL HAVE A LARGE RADIAL SPLIT OR RUPTURE • USUALLY ASSOCIATED WITH SITES OR OPERATIONS THAT HAVE GROSSLY EXCEEDED TYRE TKPH (HEAT) RATING • USUALLY WILL HAVE BELTS OR CARCASE FABRIC PROTRUDING FROM THE RUPTURE • LINER WILL HAVE MULTIPLE, LARGE RADIAL SPLITS • MANUFACTURING • NONE • WILL HAVE EVIDENCE OF HEAT IN THE FAILED AREA OF TYRE • OTHER FEATURES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 19

GOODYEAR EARTHMOVER TYRES TREAD ROCK CUT (NWR) NWR = NOT WORTH REPAIRING PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 20

GOODYEAR EARTHMOVER TYRES TREAD ROCK CUT CAUSES SYMPTOMS • SITE • DISTINGUISHING FEATURES • UNTIDY PIT FLOORS AND DUMPS • TYRE WILL HAVE A CUT OR CUTS DISTINGUISHABLE BY ABRASION ON SURFACE AND A SEPARATED APPEARANCE IN THE CUT • POOR CLEANUP PRACTICES • VEHICLE OPERATORS DRIVING OVER SPILLAGE OR BACKING UP ONTO ROCKS PRIOR TO LOADING OR DUMPING • A CUT THROUGH WILL RESULT IN BROKEN BODY CORDS AND INTERNAL SPLIT IN THE LINER • MANUFACTURING • OTHER FEATURES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA • NONE 21

GOODYEAR EARTHMOVER TYRES TREAD / SHOULDER HEAT SEPARATION (RADIAL) REVERTED RUBBER PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA REVERTED RUBBER 22

GOODYEAR EARTHMOVER TYRES TREAD / SHOULDER HEAT SEPARATION BREATHER HOLE - ADJACENT TO BELT EDGE PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 23

GOODYEAR EARTHMOVER TYRES TREAD / SHOULDER HEAT SEPARATION LOOSE / MANGLED BELT WIRES BREATHER HOLES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 24

GOODYEAR EARTHMOVER TYRES TREAD / SHOULDER HEAT SEPARATION - RADIAL REVERTED RUBBER PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 25

GOODYEAR EARTHMOVER TYRES TREAD / SHOULDER HEAT SEPARATION - BIAS REVERTED RUBBER PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 26

GOODYEAR EARTHMOVER TYRES TREAD / SHOULDER HEAT SEPARATION SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • REVERTED RUBBER • VEHICLE OPERATIONAL TKPH REQUIREMENTS EXCEEDING TYRE RATING • SPONGY AND TACKY • POROUS APPEARANCE • STRONG DISTINCTIVE ODOUR • MANUFACTURING • NONE • OTHER FEATURES • BREATHER HOLES • LOOSE / MANGLED BELT PACKAGE • BRITTLE BELT COAT PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 27

GOODYEAR EARTHMOVER TYRES TREAD SEPARATION - TKPH RELATED - RADIAL CENTRELINE SEPARATION PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 28

GOODYEAR EARTHMOVER TYRES TREAD SEPARATION - TKPH RELATED SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • NON-CUT RELATED SEPARATION • VEHICLE OPERATIONAL TKPH REQUIREMENTS EXCEEDING TYRE HEAT RATING • SEPARATION ON TOP OF BELT PACKAGE • SMALL DEGREE OF POROSITY • MANUFACTURING • FAINT SMELL OF “HEAT” • NONE • OTHER FEATURES • MECHANICAL EROSION IN SEPARATED AREA PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 29

GOODYEAR EARTHMOVER TYRES BELT EDGE SEPARATION - DURABILITY RELATED PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 30

GOODYEAR EARTHMOVER TYRES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 31

GOODYEAR EARTHMOVER TYRES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 32

GOODYEAR EARTHMOVER TYRES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 33

GOODYEAR EARTHMOVER TYRES BELT EDGE - SHOULDER WEDGE INTERFACE SEPARATION PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 34

GOODYEAR EARTHMOVER TYRES BELT EDGE SEPARATION - DURABILITY RELATED CAUSES SYMPTOMS • SITE • DISTINGUISHING FEATURES • MINE ‘IN PIT’, RAMPS, HAULROAD UNDULATIONS, SOFT SPOTS • NON-CUT RELATED SEPARATION • SEPARATION AT EDGE OF BELT PACKAGE • POOR SUPERELEVATION ON HAULROADS CORNERS AND BENDS • NO EVIDENCE OF “HEAT” • SMOOTH INTERFACE BETWEEN COMPONENTS • MANUFACTURING • HIGH SCRAP HOUR ACCOUNTS • INADEQUATE RUBBER TO RUBBER ADHESION LEVELS SHOULDER REGION OF TYRE • OTHER FEATURES • MECHANICAL EROSION IN SEPARATED AREA PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 35

GOODYEAR EARTHMOVER TYRES TREAD CENTRELINE CHUNKING - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 36

GOODYEAR EARTHMOVER TYRES TREAD CENTRELINE CHUNKING SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • PITTED / KNARLED TREAD SURFACE APPEARANCE • ABRASIVE UNDERFOOT CONDITIONS • CHUNKING OCCURS IN THE CENTRELINE REGION OF TYRE • WILL USUALLY BE SEEN IN HARD ROCK MINES OR ACCOUNTS • SMALL AREAS OF TREAD RUBBER FALLING OUT • INCORRECT SIZED OR ADEQUATE FINES MATERIAL USE IN HAULROAD, RAMP & DUMP UNDERFOOT CONDITIONS • OTHER FEATURES • MANUFACTURING • NONE PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 37

GOODYEAR EARTHMOVER TYRES TREAD LUG BASE CRACKING - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 38

GOODYEAR EARTHMOVER TYRES TREAD LUG BASE CRACKING - BIAS SCRAPER PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 39

GOODYEAR EARTHMOVER TYRES TREAD LUG BASE CRACKING - BIAS SCRAPER PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 40

GOODYEAR EARTHMOVER TYRES TREAD LUG BASE CRACKING SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • CRACK OR SPLIT AT THE BASE OF THE LUG OR IN THE LUG GROOVE • OVERDEFLECTION THROUGH UNDERINFLATION OR OVERLOAD • CAN BE STARTED FROM A SMALL CUT OR STONE PENETRATION • OTHER FEATURES • MANUFACTURING • TREAD COMPOUND RELATED PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 41

GOODYEAR EARTHMOVER TYRES TREAD STONE DRILLING PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 42

GOODYEAR EARTHMOVER TYRES TREAD STONE DRILLING SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • ROCK WILL PROGRESSIVELY WORK IT’S WAY THROUGH THE TYRE BELT PACKAGE AND CARCASE RESULTING IN AIR LOSS • UNTIDY PIT FLOORS AND DUMPS • POOR CLEANUP PRACTICES • OPERATORS DRIVING OVER SPILLAGE OR BACKING UP ONTO ROCKS WHEN LOADING • WILL APPEAR AS A CAVITY WITH THE BELTS FRAYED AND WORN THROUGH RATHER THAN FRACTURED • IMBEDDED STONES NOT REMOVED FROM TREAD • OTHER FEATURES • MANUFACTURING • STONE MAY BE STILL PRESENT IN TYRE PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA • NONE 43

GOODYEAR EARTHMOVER TYRES TREAD DELAMINATION PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 44

GOODYEAR EARTHMOVER TYRES TREAD DELAMINATION SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • FLAKED APPEARANCE, LAYERS OF RUBBER PEELING OFF • NONE • SEPARATION IN AREAS OF DELAMINATION • MANUFACTURING • POOR RUBBER MIXING IN PLANT • INCORRECT TEMPERATURES DURING TYRE BUILDING LAMINATION OR CURING • OTHER FEATURES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 45

GOODYEAR EARTHMOVER TYRES TREAD HEEL & TOE WEAR - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 46

GOODYEAR EARTHMOVER TYRES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 47

GOODYEAR EARTHMOVER TYRES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 48

GOODYEAR EARTHMOVER TYRES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 49

GOODYEAR EARTHMOVER TYRES TREAD HEEL & TOE WEAR - RADIAL CAUSES SYMPTOMS • SITE • DISTINGUISHING FEATURES • HARD, COMPACTED HAULROADS • IRREGULAR TREAD CENTRELINE AND OUTER TREAD WEAR - FRONT • HIGH VEHICLE TRAVEL SPEEDS • HIGH SPEED CORNERING • ADDITIONAL COMMENTS • POOR SUPERELEVATION ON HAULROAD CORNERS AND BENDS • IN MOST CASES, FRONT TYRES CAN BE ROTATED TO REAR FOR RUNOUT. IN EXTREME CASE, IF WEAR IS VERY SEVERE AND VEHICLE ‘RIDE ISSUES’ ARISE, REMOVAL / SCRAP IS LAST OPTION • INCORRECT VEHICLE FRONT END ALIGNMENT • COMBINATION OF ABOVE • MANUFACTURING OR DESIGN • REAR FITMENT NEW - NO ISSUES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA • TREAD PATTERN RELATED 50

GOODYEAR EARTHMOVER TYRES TREAD AREA REMOVALS SUMMARY OF DISTINGUISHING CHARACTERISTICS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 51

GOODYEAR EARTHMOVER TYRES SHOULDER AREA REMOVALS V TREAD BASE CUSHION WEDGE SIDEWALL BIAS RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 52

GOODYEAR EARTHMOVER TYRES TKPH RELATED SHOULDER SEPARATION - RADIAL SHOULDER SEPARATION PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA POROSITY AND MECHANICALLY GENERATED FRICTION EROSION 53

GOODYEAR EARTHMOVER TYRES TKPH RELATED SHOULDER SEPARATION CAUSES SYMPTOMS • SITE • DISTINGUISHING FEATURES • VEHICLE OPERATIONAL TKPH REQUIREMENTS EXCEEDING TYRE RATING • NON-CUT RELATED SEPARATION • SEPARATION IN SHOULDER • DEGREES OF POROSITY • SMELL OF “HEAT” • MANUFACTURING • NONE • OTHER FEATURES • EROSION IN SEPARATED AREA PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 54

GOODYEAR EARTHMOVER TYRES BELT EDGE SEPARATION - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 55

GOODYEAR EARTHMOVER TYRES BELT EDGE SEPARATION - RADIAL SEPARATION OFF BELT EDGES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA SEPARATION RUNS DOWN SHOULDER WEDGE INTERFACE 56

GOODYEAR EARTHMOVER TYRES BELT EDGE SEPARATION - RADIAL SMOOTH INTERFACE MARGINAL WIRE COAT COVERAGE PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 57

GOODYEAR EARTHMOVER TYRES BREAKER EDGE SEPARATION - BIAS/BELTED PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 58

GOODYEAR EARTHMOVER TYRES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 59

GOODYEAR EARTHMOVER TYRES TREAD BELT; STEEL BREAKER EDGE SEPARATION CAUSES SYMPTOMS • DISTINGUISHING FEATURES • SITE • TKPH OR WCF EXCEEDENCE • SEPARATION RUNS OFF THE EDGE OF THE BELTS OR BREAKER • STRESS INDUCED TYRE OVERLOAD • USUALLY RUNS OFF THE WIDEST BELT OR BREAKER • SHOULDER BULGE; SEPARATION RUNS DOWN THE SHOULDER WEDGE OR NYLON CARCASE INTERFACE BEFORE SPLITTING OUT • POOR HAULROAD SUPERELEVATION; SOFT SPOTS, UNDULATIONS • HIGH SPEED VEHICLE CORNERING CAUSING EXCESSIVE LATERAL FORCES ON TREAD BELT ENDINGS • MANUFACTURING • OTHER FEATURES • INADEQUATE WIRE COAT GAUGE RESULTS IN CONTACT BETWEEN BELT, BREAKER WIRE AND UNDERTREAD OR SHOULDER WEDGE COMPONENTS • RADIAL LINER SPLIT SOMETIMES ACCOMPANIES SEPARATION PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 60

GOODYEAR EARTHMOVER TYRES FACTORY LINER REPAIR FAILURE FACTORY LINER REPAIR PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA SPLIT THROUGH REPAIR 61

GOODYEAR EARTHMOVER TYRES FACTORY LINER REPAIR FAILURE SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • SPLIT THROUGH FACTORY LINER REPAIR • NONE • SPLIT BETWEEN BODY PLIES RESULTING IN SEPARATION • MANUFACTURING • POOR QUALITY FACTORY LINER REPAIR • OTHER FEATURES • LIFTING / LOOSE FACTORY LINER REPAIR • USUALLY RESULTS IN A SEPARATION IN THE SHOULDER PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 62

GOODYEAR EARTHMOVER TYRES REPAIR FAILURE LIFTING LINER REPAIR PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA ADJACENT SEPARATION 63

GOODYEAR EARTHMOVER TYRES REPAIR FAILURE SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • SPLIT THROUGH OR LIFTING / LOOSE LINER REPAIR • NONE • SEPARATION IN AREA ADJACENT TO LINER REPAIR • MANUFACTURING • NONE • OTHER FEATURES • USUALLY RESULTS IN A SEPARATION IN THE SHOULDER AREA OF TYRE PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 64

GOODYEAR EARTHMOVER TYRES THIN LINER GAUGE - RADIAL FABRIC IN CONTACT WITH RADIAL LINER SPLITS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA BODY PLIES 65

GOODYEAR EARTHMOVER TYRES THIN LINER GAUGE - RADIAL LOOSE FABRIC SHOULDER SEPARATION BRITTLE PLY COAT PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 66

GOODYEAR EARTHMOVER TYRES THIN LINER GAUGE - RADIAL SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • RADIAL LINER SPLITS • NONE • FABRIC BARRIER IN CONTACT WITH BODY PLIES • MANUFACTURING • LOOSE FABRIC AROUND RADIAL SPLIT • LACK OF GAUGE BETWEEN THE FABRIC BARRIER AND THE BODY PLY RESULTING IN SEPARATION • CAUSES SEPARATION, USUALLY IN SHOULDER • CAN BE CAUSED BY HIGH TENSION OF BODY PLIES DURING SHAPING UP • OTHER FEATURES • LOOSE LINER • BRITTLE PLY COAT PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 67

GOODYEAR EARTHMOVER TYRES WILD BELT WIRE PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 68

GOODYEAR EARTHMOVER TYRES WILD BELT WIRE CAUSES SYMPTOMS • SITE • DISTINGUISHING FEATURES • TYRE OVERLOAD • BELT WIRES PROTRUDING THROUGH THE SURFACE OF THE SHOULDER AREA USUALLY • MANUFACTURING • ? ? ? • OTHER FEATURES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 69

GOODYEAR EARTHMOVER TYRES SHOULDER AREA REMOVALS SUMMARY OF DISTINGUISHING CHARACTERISTICS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 70

GOODYEAR EARTHMOVER TYRES SIDEWALL AREA REMOVALS WEDGE SIDEWALL BIAS RADIAL TURNUP INSERT PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 71

GOODYEAR EARTHMOVER TYRES SIDEWALL ROCK CUT (NWR) PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 72

GOODYEAR EARTHMOVER TYRES SIDEWALL ROCK CUT CAUSES SYMPTOMS • SITE • DISTINGUISHING FEATURES • UNTIDY PIT FLOORS AND DUMPS • TYRE WILL HAVE A CUT / CUTS, DISTINGUISHABLE BY ABRASION ON SURFACE AND A SEPARATED APPEARANCE IN THE CUT • POOR CLEANUP PRACTICES • VEHICLE OPERATORS DRIVING OVER SPILLAGE OR BACKING UP ONTO ROCKS • A CUT THROUGH WILL RESULT IN BROKEN BODY CORDS AND SPLIT IN THE LINER • MANUFACTURING • OTHER FEATURES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA • NONE 73

GOODYEAR EARTHMOVER TYRES TURNUP PLY, TURNUP PLY ENDING SEPARATION (RADIAL) CIRCUMFERENTIAL SEPARATION AT TURNUP PLY WIRE ENDING PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA SEPARATION FROM TURNUP PLY WIRE ENDINGS 74

GOODYEAR EARTHMOVER TYRES TURNUP PLY / PLY ENDING SEPARATION - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 75

GOODYEAR EARTHMOVER TYRES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 76

GOODYEAR EARTHMOVER TYRES TURNUP PLY, TURNUP PLY ENDING SEPARATION (RADIAL) SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • SPLIT ALONG THE EDGE OF THE TURNUP PLY WIRE • OFTEN STRESS INDUCED THROUGH TYRE OVERLOAD • SEPARATION RUNS FROM TURNUP PLY WIRE ENDING • MANUFACTURING • POOR ADHESION BETWEEN TURNUP PLY WIRE COAT COMPOUND, SHOULDER WEDGE OR SIDEWALL COMPOUND RESULTING IN SEPARATION • SMOOTH INTERFACE BETWEEN TURNUP PLY COAT AND SIDEWALL COMPOUNDS • OTHER FEATURES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA • INADEQUATE RUBBER COVERAGE OVER TURNUP PLY WIRE ENDING 77

GOODYEAR EARTHMOVER TYRES FAILURES THROUGH POOR ADHESION RADIAL BIAS SMOOTH INTERFACE BETWEEN COMPONENTS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 78

GOODYEAR EARTHMOVER TYRES FAILURES THROUGH POOR ADHESION SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • SMOOTH INTERFACE BETWEEN SEPARATED COMPONENTS • NONE • MANUFACTURING • OTHER FEATURES • POOR ADHESION BETWEEN COMPONENTS • WILL GENERALLY BE SEEN IN THE SIDEWALL AREA, BUT NOT EXCLUSIVELY, DUE TO THE HIGH DEGREE OF FLEXING IN THE TYRE PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 79

GOODYEAR EARTHMOVER TYRES SIDEWALL RADIAL CRACKING - BIAS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 80

GOODYEAR EARTHMOVER TYRES SIDEWALL RADIAL CRACKING - BIAS , RADIAL SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • APPEARS AS A RADIAL CRACK USUALLY IN THE SIDEWALL GROOVES AND EXTENDING DOWN INTO THE SHOULDER • OVERDEFLECTION • CAN ALSO BE CAUSED BY OLD AGE AND EXTENDED EXPOSURE TO THE ATMOSPHERE (OZONE) • CAN OCCUR IN TYRES THAT DON’T HAVE SIDEWALL GROOVES • MANUFACTURING • OTHER FEATURES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 81

GOODYEAR EARTHMOVER TYRES CARCASS FATIGUE PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 82

GOODYEAR EARTHMOVER TYRES CARCASS FATIGUE CAUSES SYMPTOMS • SITE • DISTINGUISHING FEATURES • CONSTANT TYRE OVERLOAD • SPLIT AND FRAYED CARCASE CORD OR PLIES • UNDERINFLATION • SPLITS IN LINER • MANUFACTURING • OTHER FEATURES • WILL OFTEN HAVE RADIAL SIDEWALL SPLITS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 83

GOODYEAR EARTHMOVER TYRES SIDEWALL AREA REMOVALS SUMMARY OF DISTINGUISHING CHARACTERISTICS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 84

GOODYEAR EARTHMOVER TYRES BEAD AREA REMOVALS INSERT V RADIAL BIAS CHIPPER PAD RUBBER CHAFER CHIPPERS APEX BEAD PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 85

GOODYEAR EARTHMOVER TYRES WILD BEAD WIRE PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 86

GOODYEAR EARTHMOVER TYRES WILD BEAD WIRE SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • BEAD WIRES PROTRUDING THROUGH THE SURFACE OF THE BEAD AREA • TYRE OVERLOAD • MANUFACTURING • BEAD BUNDLE UNWRAPPING • OTHER FEATURES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 87

GOODYEAR EARTHMOVER TYRES BEAD SEPARATION - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 88

GOODYEAR EARTHMOVER TYRES BEAD SEPARATION - BIAS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 89

GOODYEAR EARTHMOVER TYRES BEAD SEPARATION SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • SPLIT BETWEEN BEAD BUNDLES • TYRE HEAVILY OVERLOADED • BEAD BUNDLE EXPOSED • SOMETIMES ASSOCIATED WITH THE TYRE ROCKING ON THE BEAD • LOOSE BEAD WIRES • TYRE FIRE / EXPLOSION • OTHER FEATURES • MANUFACTURING • INSUFFICIENT BEAD STRENGTH • OFF CENTRE BEAD BUNDLE PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 90

GOODYEAR EARTHMOVER TYRES BEAD AREA GUM CHAFER SEPARATION - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 91

GOODYEAR EARTHMOVER TYRES BEAD AREA GUM CHAFER SEPARATION - RADIAL SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • SEPARATION BETWEEN THE GUM CHAFER AND TOP CHIPPER PAD COAT RUBBER COMPOUNDS • NONE • MANUFACTURING • SMOOTH INTERFACE BETWEEN THE CHAFER AND TOP CHIPPER PAD RUBBER COAT STOCK • POOR RUBBER TO RUBBER ADHESION BETWEEN GUM CHAFER AND CHIPPER PAD COAT COMPOUND • OTHER FEATURES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 92

GOODYEAR EARTHMOVER TYRES CHIPPER SEPARATION - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 93

GOODYEAR EARTHMOVER TYRES CHIPPER SEPARATION - RADIAL CAUSES SYMPTOMS • SITE • DISTINGUISHING FEATURES • HEAVILY OVERLOADED TYRES • SEPARATION FROM THE END OF THE OUTSIDE NYLON CHIPPER PLIES • USUALLY OCCURS AT SITES WITH HEAVILY UNDULATED PIT FLOORS, DUMPS, HAULROADS • SEPARATION EITHER ABOVE OR BELOW THE CHIPPER PAD • DYNAMIC TYRE OVERLOAD • NARROW FLANGES CREATING BEAD ROCK • OTHER FEATURES • WILL OFTEN BE ASSOCIATED WITH BUCKLED OR WAVY NYLON CHIPPER PLIES PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA • MANUFACTURING • WAVY OR BUCKLED NYLON CHIPPER PLIES 94

GOODYEAR EARTHMOVER TYRES GUM CHAFER CRACKING - RADIAL PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 95

GOODYEAR EARTHMOVER TYRES BEAD GUM CHAFER CRACKING / BRITTLENESS CAUSES SYMPTOMS • SITE • DISTINGUISHING FEATURES • UNDERINFLATION • CRACKING OR BRITTLENESS OF THE CHAFER IN THE AREA OF THE FLANGE USUALLY (GG REGION) • OVERLOAD • MANUFACTURING • OTHER FEATURES • CHAFER COMPOUND TOO HARD • IS NOT NORMALLY A TYRE FAILURE REASON PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA • WOULD ONLY BE ADJUSTABLE IF TURNUP PLY WIRE EXPOSED 96

GOODYEAR EARTHMOVER TYRES BEAD FLANGE EROSION PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 97

GOODYEAR EARTHMOVER TYRES BEAD FLANGE EROSION CAUSES SYMPTOMS • SITE • DISTINGUISHING FEATURES • EROSION OF THE GUM CHAFER IN THE FLANGE REGION • CHAFER ERODED THROUGH CONTACT WITH FLANGE • ABRASION FROM RUBBING RATHER THAN SPLITTING • RUSTED / DAMAGED FLANGE • UNDERINFLATION • OVERLOAD • OTHER FEATURES • IS NOT NORMALLY A TYRE FAILURE REASON PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA • MANUFACTURING • NONE 98

GOODYEAR EARTHMOVER TYRES FLOW CRACKING PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 99

GOODYEAR EARTHMOVER TYRES FLOW CRACKING SYMPTOMS CAUSES • DISTINGUISHING FEATURES • SITE • CIRCUMFERENTIAL CRACK OR SPLIT IN THE BEAD AREA USUALLY IN THE VICINITY OF THE GG GROOVE • NONE • MANUFACTURING • IMPROPER FLOW OF RUBBER IN THE MOLD IN THE BEAD AREA OF THE TYRE • OTHER FEATURES • WILL ONLY BE ADJUSTABLE IF SEVERITY IS BEYOND REPAIR LIMITS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 10 0

GOODYEAR EARTHMOVER TYRES BEAD AREA REMOVALS SUMMARY OF DISTINGUISHING CHARACTERISTICS PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 10 1

GOODYEAR EARTHMOVER TYRES THANK YOU PRESENTATIONAME: OTR TYRE REMOVAL ANALYSIS - 2011 PRESENTED BY: GOODYEAR EARTHMOVER PTY. LTD. , AUSTRALIA 10 2