Stearns 57 User Manual

Brake replacement parts

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Service Instructions for

DC Arc Suppression Module Kit

Series 55,X00; 57,500; 87,X00; 81,X00; 82,X00 and 86,X00 Disc Brakes

Note: Two kits are required on 86,X00 Series


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, Inc., Stearns

Division, 5150 S. International Dr., Cudahy,

Wisconsin 53110, (414) 272-1100.


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.

Surfaces may be hot enough to be

painful or cause injury.

4. Do not operate brake with housing

removed. All moving parts should be


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.


Brake Replacement Parts

P/N 8-078-955-08

effective 8/20/99

Table: Components



Item Description









Arc suppression module

Cable strap

Terminal connector

Cap screw, #10-24 x 5/8

Machine screw, #6-32 x 3/8

Flat washer #6







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