Warner Electric PCBC-500 Clutch_Brake Coupling - Manual (Page 13)

13
C. Assembling the Hub and Armatures
The heavy duty units contain spline drive armatures and
hubs. The armatures are shipped with a built-in autogap
spring accessory. This device automatically maintains a
gap of about 1/32-inch between the
armature and magnet faces for the life of the unit.
Use the following method to assemble the armature and
splined hub:
1. Place the armature hub up on one end.
2. Check the detent ring in the armature
assembly to make sure it is evenly centered
around the spline. This ring moves freely, and it
should be centered for easier assembly of the
hub.
3. Holding one of the armatures with the
segmented side up, press the armature on
to the hub using firm rocking back-and-forth
pressure. (Figure 5)
4. Push the assembly up against the retainer ring.
5. Turn the hub over and repeat Steps 3 and 4
with the other armature. (Figure 6)
Figure 5
D. Mounting the Armature-Hub Assembly
1. Insert a key in the keyway of the hub and slide
the armature-hub assembly on to the shaft.
2. Position the assembly so that the face of the
armature is about 1/16-inch from the magnet
face.
3. Secure the armature-hub assembly in this
position by tightening the two setscrews in the
hub.
4. Check the assembly by pressing the armature
into contact with the magnet face and then
releasing it. The armature should spring
back about 1/32-inch. This gap will be
automatically maintained for the life of the unit.
(Figure 7)
Figure 6
Magnet
1/32-inch
Armature
Figure 7
Warner Electric • 800-825-9050 819-0484