Steering and Suspension

Page 36

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Volvo Bus Service and Maintenance Manual

 King pins
70 Raise the front end. Apply the brakes and measure the full wheel locks.
 
 Single wheel hubs and bearings
71 Oil-lubricated hubs, check the oil level. It should be between the indicator lines.
 
 Front wheel bearing check
72 Use a wheel spinner to check for front-wheel bearing noise. Also check wheel balance using the wheel spinner.
 

King pins

King-pin wear must not be more than that indicated on the table at the point you are measuring. This corresponds to a bushing diametrical wear of 2 mm.

Checking axial clearance ball joint, drag link
Checking axial clearance ball joint, drag link
Maximum permitted measurements in (mm) at wheel side.

Oil-lubricated hubs, single wheels

Checking axial clearance ball joint, drag link
Draining/filling plug

Oil the bearings only if a bearing has been disassembled or if the oil is dirty or discoloured. Engine oil type: SAE 30. Rear axle oil must not be used.

Front-wheel bearing check

If the bearing is noisy, this indicates that the rollers or races are damaged. Fit new bearings. Use the wheel bearing grease recommended or fill with oil, if the bearings are of the oil-lubricated type.

Checking axial clearance ball joint, drag link