Install rear axle brake disk

AR42.10-W-0240-01A

Install rear axle brake disk

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Notes on safety-relevant components

AH00.00-Z-0019-01A

Model

956 with rear axle 746.3, 748.28

 Rear axle brake disk

Number

Designation

Model 956

BA42.10-N-1001-13BH

Screw/bolt, brake disk to wheel hub

M12x1.5 - hexagon head bolt

Stage 1

Nm

­

Stage 2

0

­

M12x1.5 - external hexalobular driving feature

Stage 1

Nm

-

Stage 2

0

-

M14x1.5

Stage 1

Nm

60

Stage 2

0

80

1

Clean centering seat (B) and contact surface (C) on wheel hub.

 Installation: During installation, there must be no dirt or corrosion residue between the brake disk (3) and the wheel hub (2).
Twisting may otherwise occur when screws/bolts (1) are tightened, resulting in damage to the brake disk (3).

 First clean with a wire brush, then smooth with emery cloth and continue wiping with a rag. Do not grease centering seat (B) and contact surface (C).

2

Clean centering seat (D) and contact surface (E) on the brake disk.

 First clean with a wire brush, then smooth with emery cloth and continue wiping with a rag. Do not grease centering seat (B) and contact surface (C). When using a new brake disk, clean the centering seat (D) and contact surface (E) free of grease.

3

Position wheel hub (2) onto brake disk (3).

 The contact surface of the wheel hub (2) and brake disk (3) must be clean. The wheel hub (2) must be fitted flush with the brake disk (3) and must not be tilted.

4

Screw in new screws (1) lightly by hand.

5

Tighten screws/bolts (1) in 2 stages in a crosswise pattern   .