Warner Electric Primary Brake Pin Drive Armature PB-825, PB-1000, PB-1225, PB-1525 Motor Brake and Spline Drive MB-825, MB-1000, MB-1225 Pin Drive User Manual

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Warner Electric • 800-825-9050

P-208 • 819-0367

C. Assembling the Armature and Hub

These units contain spline drive armatures.
The armatures are shipped with a built-in 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.

These units are shipped with the armature,
splined armature adapter, and autogap already
assembled.

1. Slide the spline drive armature onto the splined

hub. The segmented side of the armature faces
toward the magnet. (Figure 4)

2. Press on the splined armature adapter, and

slide the armature forward until it is in full
contact with the magnet face.

Note: The

autogap detent ring in the splined adapter
grips the hub very tightly, and requires
considerable force to slide onto the hub.
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.

Figure 4

3. Bolt the cover to the adapter using

capscrews and lockwashers. (Figure 5)

Figure 5