Warner Electric PCBC-825, PCBC-1000, PCBC-1225 - Manual (Page 6)

6 Warner Electric • 800-234-3369 P- 205-01
•
819-0474
3. Position the assembly to allow a gap of about
1/32-inch between the brake magnet and
armature faces. (Figure 11)
Once this gap is set, it will be automatically
maintained for the life of the unit.
4. Secure the assembly in this position on the
shaft by alternately tightening each setscrew.
During the tightening process, the bushing
should be tapped lightly to make certain it
seats-in properly.
Note: For pin drive armatures (normal duty),
continue to F. For spline drive armatures (heavy
duty), proceed to F. on page 8.
F. Assembling the Clutch Armature
1. A customer may wish to use the autogap
accessory to mount a clutch armature to his
own pulley, hub, gear, etc. Follow the
illustrated dimensions (Figures 12 & 13) to
properly adapt these parts to the armature.
a. Chordal dimensions "A" and "C" must be
held for all chords between pin holes.
b. Drill 27/64-inch diameter holes to a suffi-
cient depth and tap for 1/2-13 NC-3
1-1/8-inch minimum full threads. Pin holes
must be square with plane of mounting sur-
face and magnet mounting.
c. Ream .501/.500 to a 3/8-inch depth and to
be concentric with tapped holes.
Machining Instructions for Gear, Sprocket, or Pulley
Unit Size A B C D
825 3.085 ± .001 3.563 ± .001
1000 4.548 ± .002 5.252 ± .002
1225 4.155 ± .002 5.877 ± .002
A C
D
B
Figure 12
1-9/32" 5/16"
2-1/4"
1/2" –13 UNC –3A
Threads
+.0005"
.6185" Dia.
–.0010"
Figure 13