SEW-Eurodrive DR 315 Series, Руководство по эксплуатации

Страница: 148 / 268

7
Inspection/maintenance
Inspection/maintenance work for DR..71 – 315, DRN63 – 315, DR2..56 – 80 brakemotors
Operating Instructions – AC Motors
148
7.6.5 Working steps for inspecting DR..71 – 315, DRN63 – 315, DR2..63 – 80 brakemotors
1. Disconnect the motor and all mounted options from the power supply before start-
ing to work, and secure the motor against unintentional power-up.
2. With gearmotors: Remove the motor from the gear unit.
Remove pinion and oil flinger [107].
3. Remove forced cooling fan and rotary encoder, if installed. See chapter "Motor
and brake maintenance – preliminary work" (→
2
123).
4. Remove the fan guard with encoder mount or fan guard [35] and the fan wheel
[36].
5. If applicable, disassemble the sensors of the /DUE option, see chapter "Removing
the /DUE diagnostic unit" (→
2
178).
6. DR..90 – 315, DRN63– 315, DR2..56 – 80 motors : Remove the brake cpl. [550] (if
applicable) with mounted /HR, /HF option manual brake release.
• BE02 – 11 : Remove terminal box cover, loosen brake cable and microswitch
supply cable of the /DUB option from the terminals.
• BE20 – 122 : Loosen locking screws of the brake plug connector [698] and re-
move plug connector.
• Loosen screws [13]/[19]/[900], press brake [550] off the endshield [42], and
carefully lift off the brake.
7. Remove stator:
• DR..71 – 132, DRN63 – 132S, DR2..63 – 80 motors: Remove cap screws [13]
from flanged endshield [7] and B-side endshield [42]. Remove stator [16] from
flanged endshield [7].
• DR..160 – 180, DRN132M – 180 motors: Loosen hex head screw [19] and re-
move B-side endshield [42]. Loosen hex head screw [15] and remove stator
from flanged endshield.
• DR..200 – 225, DRN200 – 225 motors
– Loosen hex head screw [15] and remove the flanged endshield [7] from the
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].
• DR..250 – 280, DRN250 – 280 motors without option /ERF or /NS
– 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].
• DR..250 – 280, DRN250 – 280 motors with option /ERF or /NS, or DR../
DRN315 motors
– Loosen cap screws [19] and [25], and remove B-side endshield [42].
– Loosen cap screws [15] and remove the flange [7] together with the rotor [1].
– Loosen hex head screws [609] and remove the flange [7] from the rotor [1].
– Before disassembly, preferably protect the oil seal seat from damage using
adhesive tape or a protective sleeve.
25851535/EN – 02/2019