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Instruction, operation and maintenance instructions
High voltage flameproof motors for explosive atmosphere
AMD Rg 355-400-450-500
Horizontal motors with sleeve bearings – Assembly and
disassembly instructions
Oil lubricated DIN-EF sleeve bearings
Completely coat the joint face of the lower part of
the
bearing
compound ("Curil T" or similar) following the
instructions for use of the Supplier.
Carefully lower the upper part of the bearing,
swing the machine shield, position against the
flange and attach in parallel position.
Warning!
When lowering the top part check that the seals and
the anti-rotation pins slides into place properly. If so,
the top and bottom parts of the housing will close
tightly.
If not, raise the top part of the housing and check
and correct the positions of the anti-rotation pin (25)
on the bearing shell top-part (13) and the shaft seal
(11).
Hand screw the joint bolts (4) crosswise.
Tighten the flange bolts (1) of the top part of the
housing (2) on the bearing endshield (3) with the
torque indicated:
Bearing size:
Torque Nm:
If bolts had been secured against loosing, e.g. in the
case of installations subject to vibrations, by means
of fixing compounds, such as "LOCTITE 242" or
similar.
Then tighten the joint crosswise with 80% of the
torque indicated above.
Then fit the external seal (8) as follows:
Apply the non-hardening sealing compound
(following the instructions for use) on the flange
surface and the joint of the seal halves.
Place the external seal halves on the bearing
housing, then check with plane gauge the
centering of the external oil seal (8) respect the
shaft.
Tighten the bolts (7) according to the table below:
Bearing size:
Torque Nm:
with
non-hardening
sealing
9
11
14
18
22
89
89
215 420 725 1450
9
11
14
18
22
10.5
26
Before commissioning
Fill the bearing with the same type of oil specified for
operation, up to the mark of the oil level indicator
(24). All holes, which are not to be used, must be
plugged up. Check all connections for tightness.
During the reassembling of the terminal boxes (main
line and auxiliary circuits) take care of the joining
surfaces between the boxes and their covers. Check
for the absence of scratches or damages.
Before assembling and bolting smear the joining
surfaces with a thin layer of silicon grease.
28
28
Sheet No.
3AAM101048 E
Rev. B
01.2023
Page 5 of 5
Issued by: MOLM
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