Mechanical installation
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4.4.2
Checking the air gap
Danger!
Disconnect voltage. The brake must be free of residual torque.
BFK455-006.iso/dms
Fig. 10 Checking the air gap
1. Check the air gap near the screws (10) by means of a feeler gauge and compare the
values to the values for ”s
LN
” in the table (
16).
Note!
Do not insert feeler gauge more than 10 mm between armature plate (2) and
stator (1.1)!
If the measured value ”s
L
” is outside the tolerance of ”s
Lrated
”, set the dimension:
BFK455-018.iso/dms
Fig. 11 Adjusting the air gap during the initial installation
1. Unbolt screws (10).
Note!
Correctly adjust the air gap using every 2nd screw (10) / sleeve bolt (9)! Turn
the remaining three sleeve bolts just far enough into the stator to make sure
that they do not touch the flange or the end shield. Repeat this process with the
other three screws (10).
2. Slightly turn the sleeve bolts (9) using a spanner.
Summary of Contents for BFK455
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