12 Servicing
12.3 Replacing the coupling
12.2.2
Radial shaft seal
Shaft seals are subject to natural wear that depends strongly on the respective conditions of use. Gen-
eral statements about the durability can therefore not be given.
12.3 Replacing the coupling
12.3.1
Removing the coupling
Personnel qualification:
o
Fitter
Personal protective equipment:
o
Work clothing
o
Protective gloves
o
Safety boots
Aids:
o
Extractor
WARNING
Risk of injury and damage to equipment through falling and toppling parts.
► Use intact and correctly dimensioned hoisting equipment in accordance with the total weight to be
transported.
► Select the lift points for the hoisting equipment in accordance with the centre of gravity and the
weight distribution.
► Use at least two load ropes.
► In the case of vertical transportation secure the motor against tippling.
► Do not stand under raised loads.
Requirement:
ü
Pump unit disconnected from the electrical power supply, deenergized and secured against being
switched back on
1
2
7
3
6
5
4
8
1.
Secure the motor
7
with eye bolts/hoisting equipment in such a way that the motor can be pulled
out horizontally.
2.
Remove the socket screws
8
between the motor and pump bracket
3
and pull out the motor.
3.
Loosen the fixing screw
6
at the motor-side coupling half
5
.
4.
Remove the coupling intermediate ring
4
and pull off the coupling half using an extractor.
9
2
3
11
10
5.
Secure the pump
2
with eye bolts/hoisting equipment in such a way that the pump bracket can be
pulled exactly horizontally from the pump.
6.
Remove the socket screws between the pump bracket foot and the mounting surface.
7.
Pull out the socket screws
9
between the pump and pump bracket and remove the pump bracket.
8.
Loosen the fixing screw
11
at the pump-side coupling half
10
and pull off the coupling half using
an extractor.
28
OIC 01en-GB Edition 2019-11
Operating instructions
