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Maintenance
192
Readjusting Brake Linkage
Note
Each time before the brake linkage (2a, 2b) is readjusted, the thickness of the lining on the
brake shoes must be checked. The thickness of the lining must still be at least 2 mm.
1. Disconnect the brake linkage (2b) from the brake lever (4)
2. Loosen the counter nuts (1) on the brake linkage (2a)
3. Turn the brake linkage (2a) until the brake lever path a1 is about 30 mm on activation
Note
The compensation lever (11) must be flush both in the oblong hole (I), and in the upper part (II)
of the support (12) for all settings.
4. Disconnect the brake linkage (2a) from the brake lever (5)
5. Then mount the brake linkage (2b) on the brake lever (4) again (note the length of the brake
lever (RL))
6. Loosen the counter nuts (3) on the brake linkage (2b)
7. Turn the brake linkage (2b) until the brake lever path a2 is about 30 mm on activation
8. Then mount the brake linkage (2a) on the brake lever (5) again (Observe the brake lever
length (RL))
9. Activate the brake. To do so, the cylinder stroke X must be between 25 mm and 50 mm
Note
If the cylinder stroke X is too great, readjust the brake linkage (2a, 2b) (increase the length of
the brake linkage).
After the brake linkage (2a, 2b) has been readjusted, check whether
•
the wheels turn freely when the brake is released. If they do not, the brake linkage (2a, 2b)
must be readjusted (shorten the brake linkage),
•
the threading overhang (6) of the brake linkage (2a, 2b) on the clevises must be min.=0
mm.
If the threading overhang (6) (min. = 0 mm) cannot be reached, the brake lever (4, 5) should
be moved on the brake shafts against the operating direction (7).
10. Tighten counter nuts (1,3) on the brake linkages (2a,2b).
Note
Before placing the brake into service again, check the safety equipment for functionality.
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