12 Servicing
12.7 Replacing the mechanical seal and ball bearing (outer bearing)
12.7.2
Installing the mechanical seal and ball bearing
Personnel qualification:
o
Fitter
Personal protective equipment:
o
Work clothing
o
Protective gloves
o
Safety boots
Aids:
o
Tool set, mechanical seal
Ä
o
Silicone grease
1
20
B
1.
Clean the main screw
1
carefully in the area of the mechanical seal and grease it.
2.
Slide the mounting sleeve main screw
B
onto the main screw.
3.
Mechanical seal standard/with quench
:
Slide the rotary seal ring
20
onto the main screw until it stops.
-or-
Mechanical seal hard material
:
Loosen the fixing screws of the mechanical seal (quantity depends on size). Slide the rotary seal
ring onto the main screw until it stops and retighten the fixing screws.
4.
Attention:
When pressing the components into the seal housing ensure that the adapter
sleeve
21
is not damaged. Take the recess into account.
14
3
21
A
Mechanical seal standard/hard material
:
Size 32 – 42, 55 – 118, 160 – 660, 880, 851, 951 – 3550:
Use the mounting arbour stationary seal ring
A
to press the stationary seal ring
14
with mounted
O-ring into the seal housing
3
.
-or-
16
18
3
14
A
E
21
3
16
18
Mechanical seal with quench
:
Size 32 – 42, 55 – 118, 160 – 660, 880:
Use the mounting arbour radial shaft seal ring
E
to press the radial shaft seal ring
18
into the seal
housing
3
and mount the circlip
16
.
Use the mounting arbour stationary seal ring
A
to press the stationary seal ring
14
with mounted
O-ring into the seal housing.
5.
Clean the sliding surfaces of the mechanical seal carefully and grease with silicone grease.
9
3
8
10
3
12
11 13
6.
Size 32 – 42
: Insert the O-ring into the seal housing.
-or-
Size 55 – 118, 160 – 660, 880, 851, 951 – 3550:
Position the flat gasket
8
at the seal housing
3
.
Operating instructions
OIC 18en-GB Edition 2020-01
43
