16
DFS/DFY Synchronous Motors
5
Inspection/Maintenance
5.3.2 DFY 71 ... DFY 112 .. B brake
02912AXX
Fig. 14: Cutaway view of the DFY 71... 112 brake motor
Checking the working air gap
To check the working air gap, measure the travel of the pressure plate when the brake is released
(permissible range: 0.25...0.8 mm).
In brakes with manual brake release:
– Measure the travel on a stud (15) of the releasing yoke.
In brakes without manual brake release:
– Remove plug (23).
– Screw stud (Sec. 5.2) into pressure plate.
(not too deep, since you might damage coating).
– Measure travel.
– Remove stud and replace plug.
02914AXX
Fig. 15: Detail of Fig. 14
1
Brake end shield
2 Brake disc complete
3
Intermediate ring
4
Pressure plate
5
Circlip/snap ring
6
Parallel pin
7
Brake spring
8
Brake coil, complete
9
Manual release lever
10 Releasing yoke
11 Brake coil body
12 Compressing spring
13 Disc
14 Look nut
15 Stud
16 Closing cap
17 Connector
18 Cheese head screw
19 Circlip/snap ring
20 O-ring
21 Key
22 Carrier
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Summary of Contents for DFS 56L/B
Page 1: ...14 004 92 T DFS DFY Synchronous Motors Operating Instructions Edition 02 2000 0919 9519 0200...
Page 34: ......
Page 35: ......
