12 Servicing
12.8 Replacing the mechanical seal and ball bearing (outer bearing)
12.8 Replacing the mechanical seal and ball bearing (outer bearing)
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
ü
Cartridge pump removed
5
4
3
2
1
6
8
7
9
10
1.
Remove the socket screws
2
and pull out the bearing housing
5
.
2.
Remove the circlip
3
and ball bearing
4
with the extractor from the bearing housing.
3.
Remove the feather key
1
from the main screw
10
.
4.
Remove the mounting ring
6
and press the stationary seal ring
7
from the mounting ring.
5.
Remove the distance sleeve
8
from the main screw and remove the rotary seal ring
9
.
6.
Carefully clean all the sealing surfaces and install a new mechanical seal, consisting of the rotary
seal ring and stationary seal ring, in reverse order.
38
OID 06en-GB Edition 2019-11
Operating instructions
