Setup and connection
7. From stub shaft bore hole diameter 60 mm: insert the shaft
key.
8. Turn the motor shaft so that the slot of the stub shaft is
opposite the shaft key groove of the motor shaft.
0 mm
9. For version of the stub shaft with hole diameter up to
55 mm (A) and above 60 mm (C), carefully push on the
motor until the stub shaft rests flush against the shaft collar
of the motor shaft.
–
Ensure that no excessive axial forces are applied to the
pump shaft.
0 mm
10. For the stub shaft version with hole diameter up to 55 mm
and clamping ring (B), carefully push on the motor until the
motor shaft lies flush in the bottom of the stub shaft hole.
–
Ensure that no excessive axial forces are applied to the
pump shaft.
11. Screw in the motor bolts and tighten them.
–
Ensure that the stub shaft continues to rest flush
against the collar of the motor shaft (A, C).
–
Ensure that the motor shaft continues to rest flush in
the base of the stub shaft hole (B).
12. Undo and unscrew the jack screw. Screw in the socket
head cap screw (914.06) and tighten it with a torque wrench
(→ 9.2.4 Tightening torques, Page 40).
13. Install the safety equipment:
–
Guard sheet for the motor bell housing
14. Install the auxiliary devices:
–
Manometer lines and fixtures at the pump
–
Auxiliary pipes
15. Turn the stub shaft by hand:
–
Ensure the stub shaft can be turned easily without pres-
sure points.
5.5
Electrical connection
DANGER
Risk of death due to electric shock!
Have all electrical work carried out by qualified electricians
only.
5.5.1
Connecting the motor
Follow the instructions of the motor manufacturer.
1. Connect the motor according to the connection diagram.
2. Make sure no danger arises due to electric power.
3. Install an EMERGENCY STOP switch.
5.5.2
Checking the direction of rotation
This is only possible when the pump starts operation
(→ 6.1 Preparations for the initial start-up, Page 20).
5.6
Installing guard sheet
Flanged drive
If present, install 2 guard sheets on bracket.
550 113 – 146-900/E
BA-2021.06 en-US
NI series
19