Page 796 - Workshop Manual - Aumark (BJ1051)

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Rear axle- rear wheel brake
10. 0verhual the brake friction lining
(a). Inspect the brake friction lining for any damage, excessive wear or deformation. If necessary,
replace the brake friction lining.
(b). Inspect the depth from the rivet head to

Brake friction the friction lining surface and the
lining damage thickness of the friction lining;
Brake shoe
replace it if they are beyond the limit
value.
Wear limit value of friction lining:
Vehicle type Limit
1051 series 4.6 ± 0.2 mm
1061 series 4.6 ± 0.2 mm

1089 series 4.6 ± 0.2 mm

Depth from the friction lining surface
to the rivet head:
Vehicle type Limit
1051 series 8.7 mm
1061 series 8.7 mm
1089 series 12.2 mm

11. Inspect the brake shoe retracting
spring
(a). Inspect the retracting spring for any
cracks or deformation (especially the
hooks on both ends). Inspect the free
length, load and load length of the
spring.
26 Free length of spring:
Vehicle type Free length of spring

1051 series 138 mm
1061 series 138 mm
1089 series 148 mm
Spring load and load length:

Vehicle type Spring Load Load Length
1051 series 384 N 148 mm
1061 series 384 N 148 mm
1089 series 440 N 168 mm

12. Inspect the brake backing plate
Inspect the brake backing plate for any crack or deformation, if necessary, replace it.

Page 796