LiftMaster K71-BPH-1 Guia Del Usuario página 2

MODEL SL595
REMOVE EXISTING BRAKE KIT
1. Disconnect power to operator.
2. Unbolt the gear box and motor and slide to the right.
3. 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).
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 brake hub from the gear reducer shaft.
9. Remove the locking ring and brake hub from the gear box
shaft.
10. Remove the key from the gear box shaft.
Brake Pressure Plate Brake Solenoid
with cover
Brake Disc
Brake Mounting Plate
INSTALL THE NEW BRAKE KIT
1. Install the new key on the gear box shaft.
2. Place the new brake hub on 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. Reattach the gear box and motor.
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.
Gear Box
Brake Hub
Locking Ring
Set Screw
Key
Shaft
1/8" minimum
(.32 cm)
Motor
Gear Box
THREE PHASE
POWER BOARD
2
TRANSFORMER
J6 J11
J8
BRAKE
J10 J13
J5
NOTE: The power board is located
behind the control board.
SINGLE PHASE
Motor
Wires
Brake
Wires
J7
Blue
White