![INTORQ BFK458-06***25 Operating Instructions Manual Download Page 60](http://html1.mh-extra.com/html/intorq/bfk458-06-25/bfk458-06-25_operating-instructions-manual_2081628060.webp)
Maintenance and repair
INTORQ | BA 14.0168 | 09/2015
60
8.3.4
Release / voltage
1. Check the brake functionality when the drive is running: The armature plate must be tightened and the
rotor must move without residual torque.
2. Measure the DC voltage at the brake.
-
The DC voltage measured after the over-excitation time (see bridge/half-wave rectifier) must be half
the voltage indicated on the nameplate. The deviation must be less than ± 10%.
8.3.5
Adjusting the air gap
1. Loosen the screws (Figure 12).
2. Screw the sleeve bolts (using a wrench) further into the stator. A 1/6 turn will decrease the air gap by
approximately 0.15 mm.
3. Re-tighten the screws (torque:
18).
4. Check the "s
L
" near the screws using a feeler gauge (s
LN
:
17).
DANGER
Danger: rotating parts!
The running rotor must not be touched.
DANGER
There is a risk of injury by electrical shock!
Live connections must not be touched.
DANGER
Danger: rotating parts!
The brake must be free of residual torque.
NOTICE
Please observe when mounting the flange with additional screws:
Clearing holes for the screws in the end shield must be behind the threaded screw holes in
the flange. Without the clearing holes, the minimal rotor thickness cannot be used. The
screws must not press against the end shield.
Summary of Contents for BFK458-06***25
Page 66: ...Notes INTORQ BA 14 0168 09 2015 66 Notes ...
Page 67: ......