Steering and Suspension
Volvo Bus Service and Maintenance Manual
||Check tyres for damage and wear caused by imbalance, incorrect air pressure and/or incorrect wheel alignment.|
Different types of tyre wear
Tyre wear can be caused by abrupt braking, overloading, etc. For a tourist coach driven at high speeds, the tyres must be approved for the speed in question.
The air pressure in the tyres affects the fuel consumption. Pressure at 1 kgf/cm2 below specification will increase fuel consumption by 1 litre/ 100 km.
|Too high||Too low|
|Incorrect air pressure|
|Camber incorrect||Caster incorrect, imbalance or vibration|
|Laterally directed wear (raw edge) indicates toe-in problems.|
Toe-in wear tendencies on the drive wheels may be due to an incorrectly angled axle.
|Toe-in incorrect|| |
|Toe and heel wear on the drive wheels may be due to improperly installed dual wheels.|
|Toe and heel wear|| |