Warner Electric PCBC-825, PCBC-1000, PCBC-1225 - Manual (Page 13)

13 Warner Electric • 800-234-3369 P-205-01
•
819-0474
Step 4
Insert the bushing into the retainer ring side of the
splined hub. The clearance holes in the bushing
flange should line up with the tapped holes in the
splined hub. (Figure 14)
G. Mounting the Armature and Hub
Assembly
1. Slide the complete armature and hub assembly
onto the shaft until the armature face touches
the magnet face.
2. Tighten the bushing capscrews, taking a few
turns at a time on each capscrew. As the
capscrews are tightened, the armature will
back away slightly from the magnet. There
should be a clearance of 1/16" between the
armature and magnet when the capscrews are
completely tight. (Figure 15)
Figure 14
Armatur e
1/32-inch Gap
Clutch
Magnet
Figure 15
3. When the bushing is secure on the shaft,
push the armature against the magnet face.
When the armature is released, it will spring
back about 1/32". The gap will be
automatically maintained for the life of the
unit.
H. Mounting the Brushholder
1. The brushholder is mounted on a bracket
which must be furnished by the customer.
The bracket must be firmly secured to
prevent vibration which could cause improper
contact between the brushes and
collector ring.
2. The distance from the centerline of the shaft
to the top of the brushholder should be
5-3/4". Maintaining this distance will assure
proper spring tension on the brushes and
maximum wear follow-up. A detailed
dimensional drawing is included with each
brushholder.