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Operation Section 4-26
OPERATION
RBF-19C 07/04
© 2004 Alamo Group Inc.
Motor Position
All rotor units are supplied with the motor positioned on the left hand side of the cowl. It can be placed on the
other side of the cowl if desired, to suit particular operating conditions. To change the motor to the opposite
side follow the instructions below.
A. Position the cowl horizontally securely supported on stands or blocks, so that either end may be worked
on.
B. Remove the hoses from the motor, plugging the ends and ports to prevent entry of dirt.
C. Remove the motor guard and stay complete.
D. Remove the four nuts from the rotor shaft drive flange.
E. Remove the motor, drive plate, mounting plate, and rubber bushings as one unit by removing the three
attachment bolts, through the rubber bushings separating the rotor shaft from the drive flange, taking care not
to damage the joint faces.
F. Remove the non-drive end bearing guard, loosen the bearing locking set screws and remove the clamping
setscrew in the end of the shaft.
G. Remove the rotor shaft from the cowl. While it is out of the cowl remove all the flails and shackles and
replace with flails facing the opposite direction, but at the same location.
I. Remove the bearing adaptor plate from the left hand side of the cowl and replace in the right hand side of
the cowl.
J. Reassembly is the opposite of the above procedure but with the positions of the items reversed: left hand
side for right hand side and vice versa.
NOTE: Extreme care must be taken to ensure that the mating faces of the drive flange are clean, flat and
undamaged when it is reassembled . If any burrs are found on either face they should be carefully removed
with a fine file. Tighten the 4 flange nuts eventually to a torque of 60Nm (44 ft lbs). Failure to observe this
procedure could result in rotor shaft vibration and/or premature motor failure.