Wheels and Tires: Testing and Inspection
INSPECTION1. Inspect tire.
a. Check the tires for wear and for the proper inflation pressure.
Cold tire inflation pressure for vehicles driving under 120 km/h (75 mph):
Tire Size: P215/75 R15
Tire Pressure:
Front: 230 kPa (33 psi)
Rear: 240 kPa (35 psi)
Tire Size: P235/75 R15
0.5 Ton
Tire Pressure:
Front: 180 kPa (26 psi)
Rear: 200 kPa (29 psi)
1.0 Ton
Tire Pressure:
Front: 180 kPa (26 psi)
Rear: 280 kPa (41 psi)
b. Check the tire runout.
Tire runout: 3.0 mm (0.118 inch) or less.
2. Rotating tires.
HINT: See the illustration for where to rotate each tire.
3. Inspect wheel balance.
a. Check and adjust the off-the-car balance.
b. If necessary, check and adjust the on-the-car balance.
Unbalance after adjustment: 14.0 g (0.031 lbs.) or less.
4. Check wheel bearing looseness.
Check the backlash in the bearing shaft direction.
Maximum backlash: 0.05 mm (0.0020 inch).
5. Check front suspension for looseness.
6. Check steering linkage for looseness.
7. Check ball joint for looseness.
8. Check to see if shock absorber works properly.
- Check for oil leaks.
- Check mounting bushings for wear.
- Bounce front and rear of vehicle.