Warner Electric PCBC-825, PCBC-1000, PCBC-1225 - Manual (Page 8)

8 Warner Electric • 800-234-3369 P- 205-01
•
819-0474
2. A customer may mount the clutch armature to
his own pulley, hub, gear, etc. Refer to the
illustration drawings, "Armature View," for the
dimensional information needed to drill and tap
holes in the customer part.
The splined hub pilot diameter must be
concentric with the splined armature center of
rotation within .010 T.I.R.
3. Mount the armature to the customer's part using
the capscrew accessory provided.
Maintain a 1/16-inch clearance between the
armature adapter and the customer part after
the parts have been assembled.
G. Mounting the Clutch Armature Assembly
1. Slide the complete armature and customer
supplied pulley, sprocket or hub assembly on to
the shaft.
2. Adjust the armature's position to allow a 1/16-
inch gap between the magnet and armature
faces. (Figure 13)
3. Secure the armature assembly in position by a)
retainer rings, b) set collars, c) shoulder on the
shaft, or d) any combination of these. The best
method will depend on the characteristics of
each application.
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.
Armatur e
1/32-inch Gap
Clutch
Magnet
Figure 13
PCB-825 PCB-1000 PCB-1225
Clutch-Brake Spline Drive Armature
The illustration drawings, parts lists, and exploded
views for these units can be found beginning on
page 22.
Refer to the installation instructions for pin drive
armature units, page 3, for steps A-E.
F. Assembling the Spline Drive Armature
1. These clutch-brake 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.
The spline drive armature assembly is shipped
with the armature, splined armature adapter,
and autogap already assembled. The splined
hub and capscrew accessories are shipped as
separate parts.
Follow these instructions to assemble the
splined armature assembly and hub:
a. Place the armature-adapter assembly on a
flat surface with the segmented side up.
b. Push the splined hub, with the pilot diameter
down (refer to illustration drawings) through
the autogap spring and splined armature
adapter. (Figure 12)
Figure 12