SEW-Eurodrive EDR200, Руководство по эксплуатации, Страница: 154 / 272

8
Inspection/maintenance
Inspection/maintenance work EDR..71 – 315, EDRN63 – 315 motors
Operating Instructions – EDR..71 – 315, EDRN63 – 315
154
8.6 Inspection/maintenance work EDR..71 – 315, EDRN63 – 315 motors
8.6.1 Inspection steps for EDR..71 – 315, EDRN63 – 315 motors
WARNING
Risk of crushing if the drive starts up unintentionally.
Severe or fatal injuries.
• Disconnect the motor and all connected options from the power supply before
you start working.
• Secure the motor against unintended power-up.
1. With gearmotors: Remove the motor from the gear unit.
Remove pinion and oil flinger [107].
2. Remove forced cooling fan and rotary encoder, if installed, see chapter " Motor and
brake maintenance – preliminary work" (→
2
141).
3. Remove fan guard [35] and fan [36].
4. Remove stator:
• EDR..71 – 132, EDRN71 – 132S motors: Remove cap screws [13] from
flanged endshield [7] and B-side endshield [42]. Remove stator [16] from
flanged endshield [7].
• EDR..160 – 180, EDRN63, EDRN132M – 180 motors: Loosen hex head screw
[19] and remove B-side endshield [42]. Loosen hex head screw [13]/[15] and
remove stator from flanged endshield [7].
• EDR..200 – 225, EDRN200 motors
– Loosen hex head screw [15] and remove flanged endshield [7] from stator.
– Loosen cap screws [19] and remove the complete rotor [1] together with the
B-side endshield [42].
– Loosen cap screws [25] and remove the complete rotor [1] from the B-side
endshield [42].
• EDR..250 – 280, EDRN225 – 280 motors without /ERF or /NS option
– Loosen cap screws [15] and remove the flange [7].
– Loosen cap screws [19] and remove the B-side endshield [42] together with
the rotor [1].
– Loosen cap screws [25] and remove the B-side endshield [42] from the rotor
[1].
• EDR..250 – 280, EDRN225 – 280 motors with /ERF or /NS option, or EDR../
EDRN315
– Loosen cap screws [19] and [25] and remove the B‑side endshield [42].
– Loosen cap screws [15] and remove the flange [7] together with the rotor [1].
Pulll or push the rotor [1] and take the flange [7] along evenly.
– Loosen hex head screws [609] and remove the flange [7] from the rotor [1].
– Before disassembly, protect the oil seal seat from damage using masking
tape or a protective sleeve.
5. Visual inspection: Is there any moisture or gear unit oil inside the stator?
• If not, proceed with step 7.
• If there is moisture, proceed with step 6.
25896334/EN – 06/2019