Operating Instructions BA 77 600..A00 // Last updated: 13/03/2020 // Page 9 of 33
3.2 Installation of accessories
Hand release (21):
The two screw plugs (23) fitted opposite each other to the circumference of
the intermediate ring (6) must be screwed out. The cams (21.2) with
threaded bush must be screwed into the bores provided in the screw plugs
(23) making sure that they are in the right position (see figure). Secure the
cams with Loctite 601. The hand release lever (21.1) must be fixed to the
square socket provided in the cams (21.2). The release forces F and the
maximum permitted release forces (actuation forces) F
max
are specified in
Table 7/1.
Note!
Machinery-specific regulations and requirements (e.g. for hoists, cranes and
elevators) must be observed when using brakes with hand release (21).
Size
10
11
13
16
19
24
M
A
tightening torque of threaded bush [Nm]
20
20
20
26
26
35
Release force F
2)
[N]
4
7
20
60
70
110
Max. permitted release force (actuation force) F
max
[N]
11
18
50
150
155
230
Table 9/1: Release force F and maximum permitted release force (actuation force) F
max
of hand release (21);
M
A
tightening torque of threaded bush of cams (21.2)
Note!
When installing the cams (21.2) make sure that the cam surface points towards the armature (2).
Caution!
The brake torque can be neutralised manually by means of the hand release (21). Consequently, the brake
must be installed in such a way that any unintentional actuation of the hand release (21) is excluded.
Warning!
Check that the mechanical hand release (21) is in a central position (see Fig. 6/1) when not in use. This is
crucial to ensure reliable brake engagement. Otherwise, the full braking effect of the spring-applied single-disc
brake may not be reached. In this case, the machine (e.g. motor) must be stopped immediately and must not
be restarted until correct operation of the hand release (21) and automatic return of the hand release lever in
its central position (see Fig. 6/1) has been ensured.
2)
Release force F (approx.) at the highest rated (standard) torque.
Installation of cams
with threaded bush
Summary of Contents for 7760016A00-0004
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