Warner Electric SFC-120, SFC-170, SFC-250, SFC-400 Bearing Mounted, Flange Mounted - Manual (Page 7)

7 Warner Electric • 800-825-9050 P-200
• 819-0481
Clutch-Coupling SFC-120, SFC-170,
SFC-250, SFC-400
Installation Instructions
A. Aligning the Shafts
In order for the clutch-coupling unit to operate
properly, the mounting shafts of the motor and
reducer or other hardware must be aligned with
respect to each other before the unit is installed.
The two shafts should be concentric with each
other within .004 T.I.R., and angular alignment
should be within 1/2 degree.
1. Use a straight-edge to check if the shafts are
aligned with each other. For a more precise
indication of alignment, use a dial indicator.
(Figure 10)
2. Adjust the position of the motor, reducer, or
other hardware as required to achieve the
correct alignment.
3. To be sure the shafts stay in alignment, drill
holes for tapered dowel pins through the
mounting bases of the motor, reducer, or other
hardware and into the mounting surfaces. This
procedure will ensure that, after the clutch-
coupling has been installed, the shafts can
easily be placed in proper alignment again by
lining up the holes and secured by inserting the
dowel pins.
B. Installing the Conduit Box
To install the conduit box on the size 400 units, refer
to the instructions supplied with conduit box.
C. Mounting the Field-and-Rotor Assembly
Flange-Mounted Units
The fields and rotors are shipped separately for
flange-mounted units. On some applications it will
be necessary to mount the rotor first, and then
bring the field into position. In other instances the
field will be mounted first, and then the rotor
(mounted on a shaft) will be inserted into place.
1. Care must be taken in selecting the location for
mounting the field assembly. Pilot diameters are
machined on the field mounting flange to aid in
holding the field in the proper position. (Figure
1)
2. An appropriate pilot diameter must be provided
on the mounting surface as well.
3. The field assembly is then fastened in place
with capscrews and lockwashers. (Figure 2)
Field
Mounting
Surface
Pilot
Diameters
Figure 1
Figure 2