Warner Electric ER-1225 - Manual (Page 12)

12 Warner Electric • 800-825-9050 819-0466
Step 4: Position the magnet/spacer assembly
on the transmission pilot and align the
holes in the magnet with the spacer
and mounting surface holes . Following
the manufacturer’s instructions, apply
grade 242 Loctite to the threads of
each furnished cap screw, add a lock
washer, and fasten the magnet on the
transmission . Tighten these screws to 25
to 28 lb .ft . torque with a torque wrench .
Make the elecrical connection . The positive and
negative of the power lead must be connected to
the positive and negative lead wires or terminals
of the brake, respectively . follow KONE Inc .
instructions to set the release voltage of the brake .
Step 5: Place the armature hub assembly on a
flat surface with the armature working
face up . Push down on each detent cup
(Item 5) with your fingers, pushing the
armature down until the armature will not
move down any further . (See Figure 15)
Figure 15 - Positioning the detent cups
in the armature.
During steps 7 and 8, handle the
armature/hub assembly by the hub (Item 1)
only, making sure the armature (Item 2) is as
close to the retainer ring (Item 9) as possible.
Any movement of the armature on the pins
(Item 3) will reduce available armature travel
and may cause improper air gap setting.
Keep fingers clear of the area
between the magnet (Item 10) and the
armature (Item 2) because the armature
will be pulled sharply toward the magnet
after the gap is closed to approximately 1/8
inch. Injury can result if fingers are pinched
between the armature and the magnet.
Step 6: Insert the key in the motor shaft key way .
Step 7: Make sure no power is applied to
the brake. Place three steel shims 120
degrees apart on the magnet as shown
in Figure 16 .
.062 inch shims are
recommended. Do not use shims thicker than
.125 inch or you will shorten brake life by
reducing available armature travel.
Slip the armature/hub assembly onto the
transmission shaft until the armature hub bottoms
out on the shims . (See Figure 16) The gap
between the armature & magnet must be no more
than .125 inch . If the gap is larger than .125 inch,
push on the hub to achieve .125 inch gap .
Shims
Figure 16 - Armature installation
with shims in place.
Step 8: Insert the washer and bolt into the
threaded hole in the end of the shaft .
Tighten the bolt to the torque specified
by KONE Inc . .