Replacing The Friction Lining - Siemens SINAMICS G115D Operating Instructions Manual

Brake type
Siemens
L32
L60, L80
12.2.20.4

Replacing the friction lining

Unintentional starting of the drive unit
Switch off the power supply to the drive unit.
The brake must be in a torque-free condition.
Secure the drive unit to prevent it from being started up unintentionally.
Attach a warning notice to the start switch.
Procedure
1. Remove the fan cover.
When combined with manual release:
Unscrew the manual brake release lever.
2. Release the connecting cable.
3. Remove the fan locking ring and pull out the fan.
4. Loosen the brake screws evenly and remove the screws completely. Adjust the solenoid, see .
5. Completely pull the rotor off the hub.
6. Check the hub teeth.
7. Check the friction surface at the bearing shield. If there is severe scoring on the friction plate
or flange, replace the friction plate or flange. Rework the friction surfaces if there is severe
scoring on the bearing shield.
8. Measure the thickness of the new rotor and the head height of the sleeve screws with a
caliper gauge.
9. Calculate the gap between the solenoid and the armature disk as follows:
gap = rotor thickness + s
10.Unscrew the sleeve screws evenly until the calculated gap between the solenoid and the
armature disk is reached.
11.Mount the new rotor and solenoid. Set the air gap of the brake, see Adjusting the air gap
(Page 469).
12.Connect the connection cable.
13.Mount the fan cover.
SINAMICS G115D Wall Mounted distributed drive
Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA
Brake supplier
INTORQ BA BFK458 (12E)
INTORQ BA BFK458 (14E), IN‐
TORQ BA BFK458 (16E)
WARNING
LN
Additional information on the SIMOGEAR geared motor
Thread size
3 x M6
3 x M8
- head height.
12.2 Specific data motor
Tightening torque
Nm
10
25
471