Maintenance
9.2 Repair
Synchronous/induction motors 1PH813
Operating Instructions, 04/2009, 610.48000.22
75
Removal
1. Unscrew the screws (1) and remove the cover (2).
2. Pull out the balancing weight (3).
3. Unscrew the screws (4) and remove the cover (5).
4. Scanning unit:
– Remove the screw (6) and clip (7).
– Remove the connector (8) for the signal cable.
– Remove the screws (9) with washers and remove the scanning unit (10).
5. Rotor:
– Pull out the rotor (11).
Installation
To install the encoder, carry out the above steps in reverse order. The following differences
should be noted, however:
1. Heat up the rotor (11) (max. 150°C), push it onto the motor shaft (12) and allow it to cool
down.
Note! Inductive heating is not permitted.
2. The screws (9) for attaching the scanning unit (10) are secured (e.g. with Loctite 243).
3. The installation dimensions (see "Built-in rotor encoder") must be observed.
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