RDD-Series Rotary Direct Drive Bearingless Motor Installation Instructions
23
Publication RDB-IN002A-EN-P — October 2009
Release the Compression Coupling
Follow these steps to loosen the respective motor from a machine shaft.
RDB-x290x and RDB-x410x Motors
1.
Seat a 6 mm hex driver on the compression coupling bolt.
Access the compression coupling bolts through the holes labelled A.
• The RDB-
x
290
x
motor has six (6) compression bolts to loosen.
• The RDB-
x
410
x
motor has ten (10) compression bolts to loosen.
Refer to the diagram on
for the hole locations.
2.
Release the compression coupling by lightly tapping the hex driver with a
hammer.
3.
Repeat steps 1 and 2 to the compression coupling bolt directly opposite the
bolt accessed most recently.
Use this alternating pattern until all compression couplings are released.
RDB-x4103 Motors Only
1.
Seat a M6 x 1 x 120 screw or threaded rod into either hole D.
Access the second-stage compression coupling bolts on a RDB-
x
4103 motor
through the holes labelled D.
The RDB-
x
410
x
motor has two (2) second-stage compression bolts.
Refer to the diagram on
for the hole locations.
2.
Release the compression coupling by tightening the screw/rod until the
coupling loosens.
3.
Repeat steps 1 and 2 to the compression coupling bolt in the other hole D.
TIP
The RDB-
x
4103 motor has a two-stage compression coupling.
Release the first and second stages by performing both steps below, starting
with the initial step that is common for all RDB-
x
290
x
or RDB-
x
410
x
motors.
