Warner Electric • 800-825-9050
P-209-WE • 819-0517
3
Primary Brake Heavy Duty
Spline Drive Armature
PB-825 PB-1000 PB-1225 PB-1525
The illustration drawings, parts lists, and exploded
views for these units can be found beginning on
page 8 .
A. Installing the Conduit Box
Install the conduit box on the magnet . Instructions for
this procedure can be found with conduit box .
B. Mounting the 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 on page 8, 10, 12, or 14) 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 .)
4 . Use a dial indicator to check the unit for
concentricity and squareness to the shaft .
The unit should be concentric within .010
T .I .R . and square within .006 T .I .R . (See
Figure 3 .)
C. Assembling the Armature and Hub
The heavy duty 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 .
Mounting Surface
Pilot diameter
Magnet
Figure 1
Figure 2
Figure 3
