Siemens SINUMERIK 840D sl Manual page 52

Spare parts
8.2 Replacement
Installing the rotary switch
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. Push both parts onto the axle 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 rotary knob by hand and using a torque wrench tighten to a
torque of 2 Nm.
8. Place the cap
9. Fold and fasten the connecting cable
Figure 8-3
The pin assignments of the rotary switch interfaces can be found in Section COM board IE
MCP (Page 25).
52
①
onto the axle of the new rotary switch as a gasket.
④
onto the rotary switch axle from the front with a wrench (size 14)
③
②
on the rotary knob and snap it into position.
①
O-ring
②
Cap
③
Arrow ring
④
Fastening nut
⑤
Rotary knob
⑥
Connection plug
⑦
Connection cable
⑧
Connection board
⑨
COM board
Installing a rotary switch
⑤
and the rotary knob .
⑦
as shown in the diagram on the left.
Detail diagram of the connection plug
ERGOline Stage 3
Manual, 02/2015, 6FC5397-4FP40-0BA0