Warner Electric PCBC-500 Clutch_Brake Coupling - Manual (Page 18)

D. Mounting the Armature Assembly
The armature and armature hub are mounted on the
shaft with a taperlock bushing. All parts must be clean
and free from burrs and chips before assembling.
1. Place the bushing into the hub and insert the
key. The key is a side-to-side fit and should not
contact the top of the keyway.
2. Insert the locking setscrews loosely into the
bushing and slide the assembly onto the shaft.
3. Place the face of the armature approximately
1/32 inch from the face of the magnet. Once
this gap is set, it will be automatically
maintained throughout the life of the unit.
(Figure 13)
4. Secure the armature's position on the shaft
by al ter nately tightening each setscrew. During
the tightening process, the bushing should be
tapped lightly to make certain it seats-in
properly.
E. Assembling the Magnet and Magnet
Hub
1. Determine which side of the magnet hub will be
mounted to the magnet. The hub is reversible.
The side to be used will depend on which side
the taperlock bushing is to enter.
2. Insert the lead wires through the rubber
terminal caps and into the collector ring. The
wires should be inserted from the same side
of the ring that the magnet will be mounted on.
(Figure 14)
1/32-inch
Magnet
Armature
Figure 13
Step 6 Tighten these (3) drive pins until shoulders of
pins are against face of armature bosses.
Since threads are class No. 3 fit, pins may
seem to bind.
Note: Alternately tighten each drive pin a
few turns at a time.
Step 7 Repeat Steps 5 and 6 for the second
armature. (Figures 10 & 11)
Step 8 Compress the armature hub and one of the
armatures together until the armature hub bot-
toms on the armature boss. Slide the retainer
on each pin down tightly against the armature
hub. (Figure 12)
Step 9 Turn the assembly over and repeat Step 8 for
the second armature.
Note: This position must not be dis turbed
during completion of the assembly.
Figure 10
Figure 11
Figure 12
Warner Electric • 800-825-9050 819-0484 18