Alfa Laval LeviMag, Instruction Manual, Page: 28 / 68

5 Maintenance
Assembly drawings with position numbers (#) can be found in section 10.3 Drive unit - WP50 and in section 10.4 Drive unit -
WP81. Tightening torques can be found in section 8.9 Tightening torque for screwed connections.
5.6 Replacement of the male bearing
Step 1
Optionally use the male bearing tool with a lifting rod to remove the male
bearing and O-ring in one step.
Or use a standard (adjustable) spanner to loosen the male bearing by
turning it counter clockwise.
4307-0040
Nm
lbs-ft
4307-0082
4307-0041
Step 2
Press the tool down (1) and rotate (2) until the groove inside the
tool fit onto the bearing key (flat section on upper part of bearing)
and press firmly down until the tool-arms click-out partly (3).
2
1
3
4307-0042
Step 3
Turn the male bearing tool counter-clockwise a 1/4 rotation
loosening the bearing part and press down. Continuing rotating
the tool enable the tool-arms to catch the O-ring.
The tool has a limited torque capacity and it is not designed for
everyday use – therefore it is always a part of the male bearing
spare part kit.
If the male bearing somehow has been tightened too hard during
abnormal use or other there is a possibility that the tool cannot
handle the torque without damaging the tool.
In these cases a standard (adjustable) spanner must therefore be
used instead.
2
1
4307-0043
Step 4
Continue turning counter-clockwise (1) to dismount the male
bearing and O-ring and lift it up (2) from the tank.
4307-0044
2
1
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