Volvo Bus Service and Maintenance Manual
| ||Parking brake/blocking valve|
||Check for proper application and release.|
| ||Brake linings|
||Measure the thickness of the brake linings.|
| ||Brake cylinder linkage system and brake pedal|
| ||Check for wear on the link forks, clevis pins and split-pin locks. Check the brake pedal journalling.|
Check the linings through the inspection holes in the brake backing plates.
Use the measuring tool shown on page 9 when inspecting the brake linings.
thickness of standard linings is 7 mm; oversize lining minimum thickens is
Asbestos-free brake linings have a wear line which shows the minimum permitted
thickness at which good braking function can still be obtained. If the
linings are judged to be so worn that they cannot function properly, they should
be replaced at the next servicing.
Check the condition of the rubber pad on the pedal. Move the pedal
from side to side to check the condition of the pedal bearing.
Wheel brakes B10M, B10R, wear limits
|Pos.||Diametric clearance||Wear limit, mm|
|1||Fork-clevis pin - lever||Total 3 mm wear|
Clevis pins, max. wear 0.40 mm on diameter
|2||Slack adjuster, between worm space and worm||Max. 0.33 mm|
|3||Anchor point bolt - bracket||2 mm|
Anchor point bolt, pin min. Ø 7.5 mm
|4||Outer bushing - brake cam||2 mm|
|5||Inner bushing - brake cam||2 mm|