WITTUR WSG-SF Series, Руководство по эксплуатации

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Subject to changes without notice ! Änderungen vorbehalten !
Gearless Lift Machine
WSG-SF
Operating Instructions
EN
Code: GM.8.004284.EN
Date: 28. Jan 2020
Version: 0.16
Page: 105
Maintenance and repair
INTORQ | BA 14.0214 | 09/2017 44
7.3.3 Release / voltage
1. Start motor and control system!
2. Observe the air gap "s
L
" when the drive is running. It should be zero.
3. Measure the DC voltage at the brake.
- After the over-excitation time (see bridge/half-wave rectifier, 34), the measured DC voltage
must correspond to the holding voltage ( 35). A deviation of ±10 % is permissible.
7.3.4 Replacing the rotor
1. Switch off voltage!
2. Disconnect the connection cable.
3. Loosen the screws evenly and remove them completely.
4. Remove the complete stator from the end shield. Pay attention to the connection cable.
5. Pull the complete rotor from the hub.
6. Check the gear teeth of the hub.
7. Replace the hub if it is worn.
8. Check the friction surface on the end shield. In case of strong scoring at the flange, replace the flange.
In case of strong scoring on the end shield, rework the friction surface.
9. Install the new complete rotor and stator ( 26).
10. Reconnect the connection cable.
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.