Warner Electric PCBC-1525_1225 - Manual (Page 9)

9 Warner Electric • 800-825-9050 P-214 • 819-0518
4. When the armature is secure on the shaft, push
the armature against the magnet face. When
the armature is released, it will spring back
about 1/32-inch. This 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.
Clutch-Brake Coupling
PCBC-1225/1000 PCBC-1525/1225
The illustration drawings, parts lists, and exploded
views for these units can be found beginning on
page 24.
The brake half of the clutch/brake unit is usually
installed first; however, in some cases it may be
necessary to start with the clutch portion of the
unit to assure a proper assembly when complete.
A. Installing the Conduit Box
Install the conduit box on the brake magnet.
Instructions for this procedure can be found with
conduit box.
B. Mounting the Brake Magnet
The brake magnet is mounted to a stationary
machine member by a flange. Extreme care must
be taken in selecting the location for the mounting
of the magnet. Proper positioning is very important
for the unit to function correctly.
1. A pilot diameter on the mounting surface is
essential to hold the magnet within the required
tolerances. (See Figure 1.)
2. A machined pilot diameter is provided on the
magnet mounting flange (refer to illustration
drawings) to aid in the proper positioning of the
magnet.
3. Once the mounting surface has been prepared,
the magnet is bolted in place with capscrews
and lockwashers. (See Figure 2.)
Magnet
Pilot diameter
Mounting Surface
Figure 1
Figure 2