12 Servicing
12.6 Replacing the ball bearing and screw set (inner bearing)
6.
Attention:
Take the mounting direction of both radial shaft seal rings
15
into account. Supporting
rings
14
of the radial shaft seal can be positioned differently.
Use the mounting arbour to carefully press the components of the radial shaft seal into the seal
housing in accordance with the sectional view (radial shaft seal ring
15
(2x), supporting ring
14
(2x), distance ring
16
(2x)). In the case of excessive resistance apply additional thread sealant.
7.
Remove the mounting arbour
E
.
8.
Size 15 – 660, 880:
Mount the circlip
13
.
9.
Fill the intermediate space of the radial shaft seal rings with the corresponding grease.
3
5
4
1
7
5
11
3
7
4
10
8
2
B
1
B
9
6
6
10.
Size 15 – 660, 880:
Position the flat gasket
7
on the seal housing.
-or-
Size 851, 951 – 3550
: Position the flat gaskets 7 (2x) on the seal housing.
11.
Attention:
Ensure that the adapter sleeve
2
/straight pin
8
is not damaged while mounting the
seal housing. Take the recess into account.
Slide the seal housing
3
onto the main screw until it stops.
12.
Size 15 – 660, 880
(figure left): Tighten the socket screws
4
between the seal housing and the
pump with torque.
-or-
Size 851, 951 – 3550
(figure right): Tighten the socket screws
11
between the seal housing and
pump with torque.
13. Remove the mounting sleeve main screw
B
.
14.
Size 851, 951 – 3550
(figure right): Push the O-ring
9
onto the seal flange
10
.
15.
Size 851, 951 – 3550
(figure right): Push the seal flange
10
into the seal housing
3
and tighten
with socket screws
4
using torque.
16. Mount the feather key
5
.
12.6 Replacing the ball bearing and screw set (inner bearing)
12.6.1
Removing the ball bearing and screw set
Personnel qualification:
o
Fitter
Personal protective equipment:
o
Work clothing
o
Protective gloves
o
Safety boots
Aids:
o
Plastic hammer
o
Extractor
Requirement:
ü
Cartridge pump removed
ü
Shaft seal removed
38
OIC 18en-GB Edition 2020-01
Operating instructions
