46
Operating Instructions – AC Motors DR / DV / DT / DTE / DVE / Asynchrounos Servo Motors CT / CV
8
Inspection / maintenance for BMG05-8, BM15-62 brakes
Inspection / Maintenance
BMG05-8, BM15-62 brakes, set the working air gap
1. Isolate the motor and brake from the supply, safeguarding them against
unintentional power-up.
2. Remove the following:
– If installed, forced cooling fan, tacho/encoder (
→
Sec. "Preliminary work for motor
and brake maintenance")
– Flange cover or fan guard [21]
3. Push the rubber sealing collar aside [5]
– Release the clip to do this, if necessary
– Extract the abraded matter.
4. Measure the brake disc [7], [7b]:
If the brake disk is
–
≤
9 mm on brake motors up to size 100
–
≤
10 mm on brake motors up to size 112
Install a new brake disk (
→
Sec. "Changing the brake disk BMG 05-8, BM 15-62"),
otherwise
5. With BM30-62:
Loosen the setting sleeve [10d] by turning it towards the bearing end shield
6. Measure the working air gap A (
→
following figure)
(use a feeler gauge and measure at three points offset by 120°)
– In BM, between the pressure plate [8] and the brake coil body [12]
– In BMG, between the pressure plate [8] and the damping plate [9]
7. Tighten the hexagon nuts [10e]
– Until the working air gap is set correctly (
→
Sec. "Technical Data")
– In BM 30-62, until the working air gap is initially 0.25 mm
8. With BM30-62:
Tighten the setting sleeves
– Against the brake coil body
– Until the working air gap is set correctly (
→
Sec. "Technical Data")
9. Install the rubber sealing collar back in place and re-install the dismantled parts
01957AXX
A
.