Check brakepad thickness and condition of brake disks

AP42.10-B-4251B

Check brakepad thickness and condition of brake disks

28.02.2020

Model

688 with engine 374.977, 904.918/919/924/957

Model

688 with engine 374.977, 904.924/957

1

Brake pad

A

Minimum thickness of the brake pad lining

B

Original thickness of the brake pad lining

2

Brake disc

A

Brake disc thickness



Check

1

Remove the wheels



Type 688.2

AR40.10-B-1100F

2

Check the thickness of the brake pads (1)

 The checking of brake pads wear is carried out through the warning light on the vehicle dashboard, or visual inspection during the normal maintenance.

.Minimum pad coating thickness

*BE42.10-B-1001-11A

If necessary, replace the brake pads:





Replacing and installing brake pads
Type 688.2

AR42.10-B-0170C

Brake disc

3

Check the brake discs (2) for thickness



Inspect condition of brake system

.

AR42.10-B-1600-11B

 Thickness of the brake discs, front axle.

 Thickness of the brake discs, rear axle.

.Disk width

*BE42.10-B-1001-08A

Type 688.2Disk width

*BE42.10-B-1001-09A

4

Install the wheels



.

AR40.10-B-1100F

Test values for front axle brake discs

Number

Designation

Front axle 733.880

Front axle 733.882

BE42.10-B-1001-08A

Disk width

New

mm

34,00

29,80 ... 30,00

Minimum thickness allowed

mm

28,00

26,00

Test values of brake discs of rear axle

Number

Designation

Rear axle 743.498

BE42.10-B-1001-09A

Disk width

New

mm

34,00

Minimum permissible thickness

mm

28,00

Brake pad of the moving caliper

Number

Designation

Model 688 with rear axle 743.498 with front axle 733.880

BE42.10-B-1001-11A

Minimum pad coating thickness

mm

2,0