Operating Instructions – AC Motors DR / DV / DT / DTE / DVE / Asynchrounos Servo Motors CT / CV
51
8
Inspection / maintenance of the BMG61/122 brake
Inspection / Maintenance
BMG 61/122 brake without encoder mounting, change the brake disc
When fitting a new brake disk (
≤
12 mm), inspect the other removed parts as well and
install new ones if necessary.
1. Isolate the motor and brake from the supply, safeguarding them against
unintentional power-up!
2. Remove the following:
– Forced cooling fan, if installed (
→
Sec. "Preliminary work for motor and brake
maintenance")
– Flange or fan guard [27], circlip [25] and fan [24].
3. Remove the rubber sealing collar [5] and the manual brake release:
– Hex nuts [16], conical coil springs [21], studs [20], release level [17]
4. Loosen the hex nuts [16], remove the connection cable to the plug connector for the
magnet [14], remove the magnet, and remove the brake springs [15].
5. Remove the complete pressure plate [8], the complete brake disc [10] as well as the
brake stationary disk and complete brake disc [6] for BMG122, clean the brake
components.
6. Install a new brake disk
7. Re-install the brake components
– Except for the rubber sealing collar, fan and fan guard, set the working air gap (
→
Sec. "Inspecting brake BMG 61/122, setting the working air gap", points 5 to 8)
8. With manual brake release: Use setting nuts [22] to set the floating clearance "s"
between the conical coil springs [21] (pressed flat) and the setting nuts (
→
following
figure)
s = 2 mm
01111BXX
s