®
Brake Replacement Parts
P/N 8-078-946-04
effective 11/10/06
Important
Please read these instructions carefully
before servicing your Stearns Brake.
Failure to comply with these instructions
could cause injury to personnel and/or
damage to property if the brake is
serviced or operated incorrectly. For
definition of limited warranty/liability,
contact Rexnord Industries, LLC, Stearns
Division, 5150 S. International Dr.,
Cudahy, Wisconsin 53110,
(414) 272-1100.
Caution
1. Servicing shall be in compliance with
applicable local safety codes including
Occupational Safety and Health Act
(OSHA). All wiring and electrical
connections must comply with the
National Electric Code (NEC) and local
electric codes in effect.
2. To prevent an electrical hazard,
disconnect power source before
working on the brake. If power
disconnect point is out of sight, lock
disconnect in the
off
position and tag
to prevent accidental application of
power.
3. Be careful when touching the exterior
of an operating brake. Allow sufficient
time for the brake to cool before
disassembly. Surface may be hot
enough to be painful or cause injury.
4. Do not operate brake with housing
removed. All moving parts should be
guarded.
5. After usage, the brake interior will
contain burnt and degraded friction
material dust. This dust must be
removed before servicing or adjusting
the brake.
DO NOT BLOW OFF DUST using an
air hose. It is important to avoid
dispersing dust into the air or inhaling
it, as this may be dangerous to your
health.
a) Wear a filtered mask or a respirator
while removing dust from the inside
of a brake.
b) Use a vacuum cleaner or a soft
brush to remove dust from the brake.
When brushing, avoid causing the
dust to become airborne. Collect the
dust in a container, such as a bag,
which can be sealed off.
6. Maintenance should be performed only
by qualified personnel familiar with the
construction and operation of the brake.
7. For proper performance and operation,
only genuine Stearns parts should be
used for repairs and replacements.
Warning!
Any mechanism or load held in
position by the brake should be secured to
prevent possible injury to personnel or
damage to equipment before any
disassembly of the brake is attempted or
before the manual release knob or lever is
operated on the brake.
Instructions
1. To remove housing, follow instructions
listed for appropriate brake series.
Series 65,300 brakes use four
through-bolts (15S), four flat washers
(15U), four lock washers (15W) and
four hex nuts (15N). Remove all and
pull back on housing (7) to free it.
Service Instructions for No. 4 AC Coil Kit
Single and Dual Voltage Coils
Series 65,000 and 65,300 Brakes
Item
Description of Parts
Qty
no.
Included in Kit
per Kit
12A
Coil
1
139
*
Lead wire and terminal assy.
2
(standard brakes only)
139S
Terminal screw
2
139W
Terminal lock washer
2
82
Plunger guide
2
84
Screw - plunger guide
2
12AN
**
Wirenut
2
12AT
**
Crimp terminal
2
*
Series 65,000 brakes use four bolts
(15S), threaded into endplate and four
lock washers (15W). Remove all and
pull back on housing (7) to free it.
Note:
Some older design Series
65,300 brakes used the same bolt
arrangement as Series 65,000.
*
Dual voltage coils only
*
Dual voltage coils only
