Siemens 1FK7 Series Instructions Manual page 25

Preparations for assembly:
1. Degrease the machine shaft in the pressing area of the shrink disk.
2. Remove the sealing cap and the covering cap from the hollow shaft and shrink disk
respectively.
3. Remove conservation lacquer from the shrink seating and seating face of the hollow
shaft borehole.
The hollow shaft borehole and the machine shaft must be grease-free in the area
of the shrink seating.
Assembly:
1. Slip the gear onto the machine shaft (do not hit with a hammer) and bring into
position.
2. In the case of a slotted hollow shaft, take note of the position of the shrink disk.
3. Tighten the hexagonal screws in the shrink disk evenly one after the other (not criss-
cross) in several cycles (tightening them by between a quarter and half turn each
time) until all the screws have the necessary pre-tensioning given by the specified
tightening torque.
It must be ensured that the two conical spring washers are lying plane-parallel to one
another.
4. Check the tightening torque with a torque wrench as shown in Table 1.
Screws
Hexagonal wrench
Tightening torque [Nm]
(at µ = 0,1)
ges
Table 1:
Disassembly:
1. Secure the drive against being switched on unintentionally.
2. Remove the covers from the shrink disk.
Loosen the screws holding the shrink disk one after the other in several cycles,
starting with about one quarter turn (strain washer can jam).
There is an injury hazard!
Do not unscrew the screws completely out of their tapped holes.
The strain washer may spring off.
3. After the screws and strain washers have been loosened, the frictional engagement
between the hollow shaft and machine shaft is released.
Insert a retaining ring into the available slot if necessary for pulling off the gear.
Siemens AG
ENGLISH
Tightening torque
Hazard from rotating rotor/freely revolving transmission shaft.
Attach suitable protective devices (protection against accidental
contact/covers) before starting up the output elements.
M5 M6
8.8 10.9/12.9
8 10
5 12/14
WARNING
WARNING
610.40 064.01
M8 M10
10.9/12.9 10.9/12.9
13 17
30/35 59/69
M12
10.9/12.9
19
100/120
25