MAINTENANCE AND SERVICE
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DIAGNOSTIC CHART
FAULT POSSIBLE CAUSE OF THE FAULT
If the vehicle slips to the side
when it is braked:
• Brake adjustment is faulty
• Tires have di erent pressure values.
If the vehicle drags to le or
right when the steering is
released
• Incorrect tie-rod adjustment (toe
angles)
• Irregular wear on the tires
• Tires have di erent pressure values
If it is diffi cult to steer the
vehicle
• Tire is underinfl ated.
• Vehicle is excessively loaded.
• Steering system shall be checked.
If the steering excessive play
or looseness
• Ball joints are loose
• Bushings are worn
• Track rod is loose/worn
• Steering gears or bearings are worn
If the outer side of the tire is
worn
• Excessive toe-out is applied
If the inner side of the tire is
worn
• Excessive toe-in is applied
If the tire is worn on the
shoulder areas
• Tire pressures are low.
If the tire is worn on the back
areas
• Tire pressures are high.
DIAGNOSTIC CHART
FAULT POSSIBLE CAUSE OF THE FAULT
If the tires are worn on both
sides
Vehicle is used with excessive load.
Curves are taken with high speed.
Vehicle is used with high speed.
Wheel rotation is not applied.
If a tire is worn more than
the other
• Pressure value of the worn tire is
faulty.
• Brake adjustment is faulty
• Toe angles are faulty
• Shock absorbers are faulty
• Wheel rotation is not applied.
If the front wheels have
excessive vibration
• Tire pressure is high.
• Tires are fl attened.
• Balancing is faulty
• Ball joints are worn
If the vehicle is shuddering
• Tire pressures are high.
• Tires are fl attened.
• Balancing is faulty.
Tires and Wheels
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