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To prevent possible SERIOUS INJURY or DEATH, disconnect 
electric power to operator BEFORE installing.
ALL installations and electrical connections MUST be made by 
a qualified individual.

The kit will provide up to 5 lb-ft of braking torque at 1725 RPM.

Model K71-B1PH-1

 . . .  For SL585501U, SL585101U, SL585151U, 

SL595101U, & SL595151U single phase gate operators

Model K71-B3PH-1

 .  For SL585103U, SL585503U, SL595103U, & 

SL595203U three phase gate operators

Model K71-B575-1

 . . .  For SL585105U, SL585505U, SL595105U, 

& SL595205U 575V three phase gate operators

TRANSFORMER

J11

2

J7

COMM WHITE

208V RED

240/575V ORANGE

480V PURPLE

J5

J6

BRAKE

J8

J10

24V

J13

White

Blue

White

Blue

Motor 

Wires

Brake 

Wires

SINGLE PHASE

White

Blue

POWER BOARD

THREE PHASE

NOTE: 

The power board is located 

behind the control board.

1/8" minimum
(.32 cm)

Gear Box

Brake Hub

Locking Ring

Brake Mounting Plate

Brake Solenoid
with cover

Brake Disc

Brake Pressure Plate

Set Screw

Key

Gear Box 
Shaft

Conduit

MODEL SL585

REMOVE EXISTING BRAKE KIT

1. Disconnect 

power 

to 

operator.

2.  

Single Phase Operators:

 Disconnect the brake solenoid 

wires from the motor wires (located in the electrical box).

Three Phase Operators:

 Disconnect the brake solenoid wires 

from the power board (located behind the control board).

3.   Disconnect the conduit from the brake solenoid and pull the 

brake solenoid wires out of the conduit.

4.   Remove the bolts, springs, and spacers from the brake 

pressure plate.

5.  Remove the brake pressure plate and brake disc.

6.   Remove the brake mounting plate and brake solenoid by 

removing the 4 screws.

7.   Loosen the set screws on the brake hub.

8.   Remove the locking ring and brake hub from the gear box 

shaft.

9.  Remove the key from the gear box shaft.

INSTALL THE NEW BRAKE KIT

1.  Install the new key on the gear box shaft.

2.   Place the new brake hub onto the gear box shaft. Position the 

brake hub 1/8" (.32 cm) minimum from the gear box. Apply 
adhesive to the set screws, then tighten to 75 ±5 in-lbs. 

3.  Place the locking ring in front of the brake hub.

4.   Apply adhesive to the screws for the brake mounting plate, 

then install the brake mounting plate and brake solenoid.

5.   Install the brake disc and brake pressure plate with the bolts, 

springs, and spacers.

6.   Pull the brake solenoid wires through the conduit and connect 

the conduit to the brake solenoid.

7.  

Single Phase Operators: 

Connect the brake solenoid wires to 

the motor wires. 

Three Phase Operators: 

Connect the brake solenoid wires to 

the power board.

8. Reconnect 

power 

to 

operator.

9.  Run the operator to make sure the brake is working smoothly.

BRAKE KIT

MODELS K71-B1PH-1, K71-B3PH-1 & K71-B575-1

CARTON INVENTORY

• Instructions

• 

Solenoid Brake Assembly

• 

Brake Hub Assembly

• Adhesive

Summary of Contents for K71-B1PH-1

Page 1: ...control board 3 Disconnect the conduit from the brake solenoid and pull the brake solenoid wires out of the conduit 4 Remove the bolts springs and spacers from the brake pressure plate 5 Remove the brake pressure plate and brake disc 6 Remove the brake mounting plate and brake solenoid by removing the 4 screws 7 Loosen the set screws on the brake hub 8 Remove the locking ring and brake hub from th...

Page 2: ... Position the brake hub 1 8 32 cm minimum from the gear box Apply adhesive to the set screws then tighten to 75 5 in lbs 3 Place the locking ring in front of the brake hub 4 Apply adhesive to the screws for the brake mounting plate then install the brake mounting plate and brake solenoid 5 Install the brake disc and brake pressure plate with the bolts springs and spacers 6 Reattach the gear box an...

Page 3: ...rique du tableau d alimentation derrière le tableau de commande 3 Déconnecter le conduit du frein électrique et tirer les fils du frein électrique hors du conduit 4 Enlever les boulons ressorts et entretoises du plateau d embrayage du frein 5 Enlever le plateau d embrayage et le disque de frein 6 Enlever la plaque de montage du frein et le frein électrique en enlevant les 4 vis 7 Desserrer les vis...

Page 4: ...le moyeu de frein à 3 2 mm 1 8 po au minimum du boîtier d engrenage Appliquer l adhésif aux vis de blocage puis serrer à un couple de 75 5 po lb 3 Placer la bague de blocage devant le moyeu du frein 4 Appliquer l adhésif aux vis de la plaque de montage puis installer la plaque de montage et le frein électrique 5 Installer le disque de frein et le plateau d embrayage du frein avec les boulons resso...

Page 5: ...nectar el solenoide del freno y jalar los cables del solenoide del freno fuera del conducto 4 Retirar los pernos resortes y separadores de la placa de presión del freno 5 Retirar la placa de presión del freno y el disco de freno 6 Retirar la placa de montaje del freno y el solenoide del freno quitando los 4 tornillos 7 Aflojar los tornillos de fijación en el cubo de freno 8 Retirar el anillo de re...

Page 6: ... cm como mínimo de la caja de engranajes Aplicar adhesivo a los tornillos de fijación luego ajustar a 75 5 pulgadas libra 3 Colocar el anillo de retención al frente del cubo de freno 4 Aplicar adhesivo a los tornillos para la placa de montaje del freno luego instalar la placa de montaje del freno y el solenoide del freno 5 Instalar el disco del freno y la placa de presión del freno con los pernos ...

Page 7: ......

Page 8: ... 2016 LiftMaster All Rights Reserved Tous droits réservés 01 38338 Todos los derechos reservados ...

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