Siemens 1FK7 Series Instructions Manual page 26

4. To clean the shrink disk, relubricate screws and conical surface with MoS
solid lubricant.
Before switching the motor on, ensure that:
- the drive does not traverse against a block
- all protective and safety devices are properly installed, even for trial
operations
- the direction of rotation of the drive is correct (important where there is a
back-run safety device)
4.2.2.3 Geared motor and motor adapter with curved tooth clutch
Preparations for assembly:
1. Unscrew the cardboard cover from the adapter casing, and take the clutch hub for the
motor out of the casing. Put the plastic clutch bush onto the counter hub.
2. Check whether the borehole diameter and the keyway fit the clutch hub for the motor
shaft. The borehole of the clutch hub has tolerance ISO H7; the keyway is
manufactured in accordance with DIN 6885 sheet 1.
According to the IEC regulation, the shaft shoulder and flange surface of the
motor must lie in the same plane. The motor shaft must not be longer than
stated in the standard.
Assembly:
1. Lightly grease the motor shaft.
2. Press the clutch hub onto the motor shaft as far as the shaft shoulder.
3. Securely tighten the set screw on the clutch hub.
4. Carefully put the motor onto the adapter casing so that the curved teeth of the clutch
hub easily mesh with the internal toothing of the plastic sleeve.
5. Screw the motor securely to the adapter casing.
The quality of the fixing screws (metric and UNC thread) and the tightening torques
must correspond to Table 2.
Screws
Tightening torque [Nm]
Table 2:
4.2.2.4 Geared motor and motor adapter with plug-in connector, zero-backlash
If the assembly instructions are followed, the plug-in connectors are
permanently fixed and maintenance-free.
Preparations for assembly:
The motor shaft shoulder and motor flange surface must lie in one plane (+ 0.5 mm). This
ensures the correct axial pre-tensioning of the clutch.
If the shaft shoulder is set back, the offset must be compensated by shims. No parts such
as screws etc. may project over the flange surface in the flange area of the motor.
26
ENGLISH
Tightening torque
CAUTION
M5 M10
8.8 8.8
25 49
NOTE
610.40 064.01
based
2
M12
8.8
85
Siemens AG