Warner Electric ER 825 and 1225 Normal Duty - Manual (Page 8)

8 Warner Electric • 800-825-9050 P-250 • 819-0122
Section IV
Disassembling the Armature/Hub
Assembly (Figure 3)
Do not pry the armature away
from the magnet. If armature is distorted the
entire brake must be replaced.
Note: Steps (1) and (2) are to be performed at
the brake.
Note: Make sure power to the brake is turned
off. See Figure 3 for the following two steps.
Put machine in a safe
condition so that when voltage is applied to
control and switch closures are made the
brake does not rotate and machine does not
run.
Step 1: Loosen the taper-lock bushing (item 5)
on the brake shaft.
To loosen, remove both allen screws from the
taper lock bushing (item 5, figure 5) using an
allen wrench. Insert the allen screw into the
previously vacant taped holes in the taper
lock bushing and tighten this screw until the
bushing is loosened in the hub (item 2). If the
bushing does not loosen, tap on the hub with
a small hammer.
Step 2: Apply power to the brake. The armature
will then spring away from the magnet. If it
does not, check electrical connections and
release voltage. Remove taper lock bushing
(item 5) and armature assembly (items 2 & 3)
from the brake shaft. Set the bushing aside.
Do not discard the bushing.
Note: If reinstalling armature assembly,
follow steps 1 thru 7 in the assembly
procedure.