10 00 r20 or822 16pr
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10.00 R20 OR822 16PR A 10.00 R20 OR822 New Tyre by revolving 949 - PowerPoint PPT Presentation

Apr 24, 2023 •254 likes •346 views

10.00 R20 OR822 16PR A 10.00 R20 OR822 New Tyre by revolving 949 times Per Km Revolves 949 times If the Wheel misaligned by 3mm per 1km only Then . 3mm out of line x 1. You cant feel it 949 revolutions = 2. 3mm

  2. • 10.00 R20 OR822 16PR A 10.00 R20 OR822 New Tyre by revolving 949 times Per Km – Revolves 949 times If the Wheel misaligned by 3mm per 1km only Then . – 3mm out of line x 1. You can’t feel it 949 revolutions = 2. 3mm misalignment x 949 rev’s 2847mm = 2847 mm – Tyre is dragged Which means that every km tyre is Being forced over 2.85 meters >9 feet sideways (> 9 feet) sideways whilst rotating every 1km No wonder it wears out the shoulder

  3. FRONT TO VEHICLE “NOTE THE FEATHER EDGE WEAR” EXCESSIVE TOE-IN WEARS THE TOE - IN IS WHEN BOTH FRONT WHEELS ARE OUTSIDE OF THE TYRE CLOSER TO EACH OTHER WHEN VIEWED FROM THE FRONT

  4. FRONT TO VEHICLE “NOTE THE FEATHER EDGE WEAR” EXCESSIVE TOE-OUT WEARS THE TOE - OUT IS WHEN BOTH FRONT WHEELS ARE FAR INSIDE OF THE TYRE AWAY FROM EACH OTHER WHEN VIEWED FROM THE FRONT.

  5. NEGATIVE CAMBER AS ILLUSTRATED IN THE PICTURE YOU COULD FIND SMOOTH SLOPED WEAR NEGATIVE CAMBER IS WHEN BOTH FRONT WHEELS ON THE INSIDE EDGE OF ARE CLOSER TO EACH OTHER WHEN VIEWED FROM THE TYRE THE TOP

  6. POSITIVE CAMBER AS ILLUSTRATED IN THE PICTURE YOU COULD FIND POSITIVE CAMBER IS WHEN SMOOTH SLOPED WEAR ON THE OUTSIDE EDGE OF BOTH FRONT WHEELS ARE FAR AWAY FROM EACH THE TYRE OTHER WHEN VIEWED FROM THE TOP

  7. Caster angle is the backward tilt of the axle, or inclination of the king pin at the top, which makes the wheel draw and automatically adjust, depending on the direction of track. INCORRECT CASTER CAUSES THE WHEEL TO BE PULLED TO ONE SIDE RESULTING IN SEVERE AND IRREGULAR TREAD WEAR

  8. King Pin Inclination LOOSE KING PIN RESULTS IN FAST AND UNEVEN TREAD WEAR It is the angle of the steering axis, relative to the road surface, as illustrated. It stabilizes the wheel at the neutral position and assists in a self-centering action to be generated.

  9. THRUST THRUST LINE ANGLE POSITIVE NEGATIVE VERY COMMONLY DETECTABLE IN COMMERCIAL Steering set back is the “set back” of one wheel VEHICLES when compared with the other on the axle. It THRUST ANGLE means one wheel is slightly behind the other, It is the angle between the geometric instead of being in line with it. centerline & the thrust line due to mis-alignment of the axle as shown in the figure.

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