12 Servicing
12.4 Replacing the mechanical seal (inner bearing)
9
2
3
11
10
X
2.
Ensure that the fixing screw
11
of the pump-side coupling half
10
is loosened.
3.
Slide the pump-side coupling half onto the shaft until it stops and tighten the fixing screw.
4.
Tighten the socket screws
9
between the pump
2
and pump bracket
3
with torque.
5.
Measure and write down the distance
X
between the face of the coupling claws and the fitting
surface of the pump bracket.
1
2
7
3
6
5
8
4
6.
Ensure that the fixing screw
6
of the motor-side coupling half
5
is loosened.
7.
Slide the motor-side coupling half onto the shaft end of the motor
7
.
X-E
8.
Check the distance between the face of the coupling teeth pump-side and the fitting surface of
the motor flange. The distance has to be adjusted to the measured value
X
minus coupling dis-
tance
E
, see table of limit values for aligning the shaft coupling
Ä
9.
Tighten the fixing screw on the motor-side coupling half and insert the coupling intermediate
ring
4
.
10. Secure the motor with eye bolts/hoisting equipment so that the motor can be pushed exactly hori-
zontally into the pump bracket and the coupling halves interlock.
11. Tighten the socket screws
1
between the motor and pump bracket with torque.
12.4 Replacing the mechanical seal (inner bearing)
12.4.1
Removing the mechanical seal
Personnel qualification:
o
Fitter
Personal protective equipment:
o
Work clothing
o
Protective gloves
o
Safety boots
Aids:
o
Plastic hammer
o
Extractor
Requirement:
ü
Coupling removed
32
OIC 18en-GB Edition 2020-01
Operating instructions
