Maintenance
Tighten the jack screw with a screwdriver without applying
any excessive force.
3. Widening the stub shaft (220.xx):
–
Screw the M10 x 40 or M12 x 40 jack screw (not
included in the scope of delivery) into the stub shaft.
4. Remove the flanged motor.
7.4
Installing
NOTE
Material damage caused by knocks and bumps!
Do not knock or hit any components of the pump.
7.4.1
Installation of the pump
Reinstall the components concentrically, without canting,
in accordance with the markings made.
WARNING
Risk of injury due to heavy components!
Pay attention to the component weight. Lift and transport
heavy components using suitable lifting gear.
Set down components safely and secure them against
overturning or rolling away.
WARNING
Risk of injury during assembly!
Install spring-loaded components carefully (e.g. mechan-
ical seal, tensioned bearing, valves etc.), as components
can be ejected by the spring tension.
Observe the manufacturer’s specifications (e.g. for the
motor, coupling, mechanical seal, blocking pressure sys-
tem, cardan shaft, drives, belt drive etc.).
NOTE
Material damage due to unsuitable components!
Always replace lost or damaged screws with screws of the
same strength. (→ 9.2.4 Tightening torques, Page 40).
Only replace seals with seals of the same material.
1. Observe the following during the installation:
–
Replace worn parts with genuine spare parts.
–
Replace seals, inserting them so that they cannot
rotate.
–
Adhere
to
the
prescribed
tightening
torques
(→ 9.2.4 Tightening torques, Page 40).
2. Clean all parts (→ 9.2.5 Cleaning agents, Page 40). Do
not remove any prepared markings.
3. Install the pump (→ sectional drawing).
4. Installing the pump in the system (→ 5 Setup and connec-
7.4.2
Installation of the flanged motor
NOTE
Damage due to incorrect installation!
Ensure that no excessive axial forces are applied to the
pump shaft.
Ensure that the stub shaft rests flush against the collar of
the motor shaft.
Stub shaft free from oil and grease
The shaft key is not required for installation up to a stub
shaft bore hole diameter of 55 mm.
Stub shaft hole diameter (→ 3.1 Labels, Page 10).
4
A
B
C
5
Fig. 11
Widening the stub shaft
A Version for stub shaft, hole diameter up to 55 mm
B Version for stub shaft, hole diameter up to
55 mm and clamping ring
C Version for stub shaft, hole diameter starting from 60 mm
1
Cheese head screw
2
Stub shaft
3
Shaft key groove of the motor shaft
4
Clamping ring
5
Key (from stub shaft bore hole diameter 60 mm)
Tighten the jack screw with a screwdriver without applying
any excessive force.
1. Widening the stub shaft (220.xx):
–
Screw the M10 x 40 or M12 x 40 jack screw (not
included in the scope of delivery) into the stub shaft.
2. From stub shaft bore hole diameter 60 mm: insert the shaft
key.
3. Turn the motor shaft so that the slot of the stub shaft is
opposite the shaft key groove of the motor shaft.
550 113 – 146-900/E
BA-2021.06 en-US
NI series
25