Siemens SINUMERIK 828D Series Software And Hardware Service Manual page 108

Service cases - hardware
4.5 Machine control panels
Removing a rotary switch
Procedure:
1. Pry off the cap
2. Remove the nut of collet
3. Remove the complete knob
4. Remove the lock nut
5. Remove the connector at the end of the rotary switch cable from the socket.
6. Remove the rotary switch.
Figure 4-16
Installing a rotary switch
Procedure:
1. Push the O-ring
2. Insert the rotary switch into the front cutout so that pressure is applied to the O-ring.
3. Screw the lock nut
(tightening torque: 3 Nm).
4. Connect the arrow ring
5. Slide both parts onto the shaft of the rotary switch.
6. Align the arrow point on the ring with position "0" on the scale.
7. Tighten the collet nut of the knob by hand and using a torque wrench tighten to a torque of
2 Nm.
108
③
from the knob
⑤
①
Nut of the collet
②
Knob
③
Cap
④
Rotary switch shaft
⑤
Fastening nut
⑥
Scale
Removing a rotary switch
①
onto the shaft of the new rotary switch as a seal.
④
onto the rotary switch shaft from the front with a wrench (size 14)
③
②
(snap on connection!).
①
with a wrench (size 10).
②
.
on the shaft of the rotary switch
⑤
and knob .
④
with a wrench (size 14).
Software and hardware
Service Manual, 08/2018, 6FC5397-5DP40-6BA1