Lift-master 71B120 User Manual

Page 1

OUTBO ARD BRAKE KIT

INSTRUCTIONS MANUAL

For Models: T, J and H

APPLICA

TION REQUIREMENTS: This wiring modification is available to models T, J and H. Brake kit for all 115, 230/460 and 575V operators.

BRAKE FUNCTIONS: Ensure your Brake Kit matches your operator and provides up to 5ft.-lb. of braking torque @ 1725 RPM motor shaft. May be factory or field installed.

VOLTAGE REQUIREMENTS: Models T and J 71-EB120 For operators with 115V incoming power source. 71-EB240 For operators with 230V and 460V incoming power source. 71-EB575 For operators with 575V incoming power source.

Model H 71-EB120H For operators with cable and 115V incoming power source. 71-EB240H For operators with cable and 230V and 460V incoming power source. 71-EB575H For operators with cable and 575V incoming power source.

INSTALLATION INSTRUCTIONS FOR OUTBOARD BRAKE KITS

NOTE: Refer to Brake illustration on page 3 and

Figure 1 on page 4 for additional help with installation.

1. Locate the new Brake Mounting Bracket (item #4). Mount the bracket to the motor studs in the same position as the solenoid is to reside. Secure in place with the (2) new flange nuts (item #20), select proper thread to mate with motor studs.

2. Locate the (2) new Motor Standoffs (item #12). Standoffs are threaded #10-32 on one end and #8-32 on the other, select the proper thread to mate with motor studs. Mount the standoffs to the two remaining motor studs, apply loctite to the motor studs before installing.

3. Locate the new Brake Hub (item #14) and Push Nut (item #23). Slide the new hub onto the shaft until it lay against the motor pulley, secure in place with the set screw and push nut supplied.

4. Locate the new Brake Mounting Plate (item #16) and (2) new Collars (item #7). Install the collars into the keyhole slots on the brake mounting plate (set screws in collars to be located away from motor).

TO AVOID SERIOUS PERSONAL INJURY OR DEATH FROM ELECTROCUTION, DISCONNECT ELECTRIC POWER TO OPERATOR BEFORE INSTALLING.

5. Place Brake Assembly over motor shaft, align the (2) Collars from step 4 with the (2) Standoffs from step 2 and slide entire assembly into position on Brake Hub (depress brake actuator lever to allow rotation of brake disc for alignment).

6. Position Brake Assembly so that the edge of the

1.25 square extrusion in the Brake Disc (item #3) is flush with the front of the Brake Hub. Secure in place by installing (2) #10-32 screws and flat washers through the (2) slots in Brake Mounting Plate, into the (2) tapped holes in Brake Mounting Bracket and tighten. Assure Assembly is square to motor and tighten the (2) set screws (item #18), (1) in each Collar.

Page 2

BRAKE KIT ILLUSTRATION

ITEM

1 2 3 4 5 6 7 8 9

*10

11 12 13 14 15 16 17 18 19

20 21

22 23

#24

PART NUMBER

10-10187 10-10190 10-10191 10-15039 11-10192 11-10193 12-14737 18-10194 19-48001 22-120 22-240 22-575 31-10186 31-15018 39-10182 75-10177 75-10184 75-15522 80-14414 82-SH06-03 82-WX10-08T 84-FN-08 84-FN-10 85-FW-10 86-CP04-112 87-P-062 75-11634

DESCRIPTION

BRAKE SOLENOID COVER BRAKE RELEASE LEVER BRAKE DISC MOUNTING BRACKET, SUPPORT SPRING CUP FOR BRAKE BRAKE STUD COLLAR, BRAKE ADJUSTMENT SPRING, COMPRESSION CHAIN,#48 X 1 PITCH BRAKE SOLENOID 115V BRAKE SOLENOID 230/460V BRAKE SOLENOID 575V SPACER,.20 I.D. X .31 O.D. STANDOFF, BRAKE ASSEMBLY BRAKE PAD BRAKE HUB ASSY BRAKE PRESSURE PLATE ASSEMBLY BRAKE MOUNTING PLATE ASSEMBLY KEY,3/16 X 3/16 X 2.0 SCREW, #6-32 X 3/16" SOCKET HEAD SCREW, #10-32 X 5/8" FLANGE HEAD NUT,#8-32 SERRATED FLANGE NUT 10-32 SERRATED FLANGE FLATWASHER #10 COTTERPIN 1/8" X 1-3/4" LONG PUSH RING, 5/8" BRAKE RELEASE CABLE ASSEMBLY

QUANTITY

1 1 1 1 4 4 2 4 1 1 1 1 2 2 2 1 1 1 1 2

2 2 2 2 1 1

* = Solenoid Shipped Depends on Operator Voltage ** = Flange Nuts used Depends on Motor Mounting Studs. # = Shipped with Model “H” Operators (Refer to Page 4 for Instructions)

Page 3

WIRING INSTRUCTIONS FOR OUTBOARD BRAKE KITS

1. Disconnect the ends of wires running to the motor and remove the conduit connector from the end of the conduit, set off to the side for reinstallation.

2. Install the new double connector supplied to the conduit where the connector was just removed in step

1. Reconnect the motor wires in the same manner as they were removed in step 1.

3. Reinstall the conduit connector removed in step 1 to the new piece of conduit supplied.

MOTOR WIRING DIAGRAMS

ELECTRO MECHANICALSINGLE PHASE

115V. CONNECTION

BL-BK

115V. BRAKE SOLENOID

4. Connect the (2) new blue/black wires supplied to the brake solenoid. Feed the wires through the brake mounting plate and then the conduit from step 4 (conduit connector side first). Secure the conduit connector to the brake mounting plate.

5. Feed the brake wire through the new double connector and secure the connector the conduit.

6. Wire the brake wires to the motor (refer to motor wiring diagrams below). Secure the double connector to the motor.

Y GY

230V. CONNECTION

BL-BK

230V. BRAKE SOLENOID

230V. CONNECTION

ELECTRO MECHANICALTHREE PHASE

BL-BK

OVERLOAD

BL-BK

(UP TO 3/4 HP)

575V. BRAKE SOLENOID

BL-BK

4 2 3

OVERLOAD

(UP TO 3/4 HP)

BL-BK

230V. BRAKE SOLENOID

7 8 936

460V. CONNECTION

BL-BK

OVERLOAD

(UP TO 3/4 HP)

BL-BK

460V. BRAKE SOLENOID

2 3

575V. CONNECTION

LOGIC CONTROL SINGLE PHASE

Y BL GY

1 8

5 4

115V. CONNECTION

BL-BK

115V. BRAKE SOLENOID

BL (Not Used)

230V. CONNECTION

BL-BK

230V. BRAKE SOLENOID

LOGIC CONTROL THREE PHASE

BL-BK

OVERLOAD

(UP TO 3/4 HP)

BL-BK

460V. BRAKE SOLENOID

230V. CONNECTION

BL-BK

4 2 3

OVERLOAD

(UP TO 3/4 HP)

BL-BK

230V. BRAKE SOLENOID

7 8 936

460V. CONNECTION

Page 4

RELEASE CABLE INSTALLATION INSTRUCTIONS

1. Locate the screw threads protruding through the brake mounting plate opposite the brake solenoid. Mount the new cable clamp supplied to the thread that is second from the top and closest the motor and secure in place with the #10 flange nut supplied.

2. Locate the release cable, cable sleeving and (2) spring clamps. Install the two spring clamps onto one end of the sleeving. Feed the release cable from the side without the spring into the sleeving from the side with the spring clamps.

3. Take the release cable assembly from above and feed the release cable and sleeving through the cable clamp installed in step 1, through the top hole of the brake mounting bracket and brake mounting plate. Once you get to the brake release lever feed only the release cable through the top hole. Secure in place by installing a #8 flatwasher and a 1/16” cable stop sleeve. Secure cable stop sleeve in place by crimping down on it with pliers (refer to detail 1).

DETAIL 1

#8 FLATWASHER

4. Locate the frame spacer that has the release chain going through it. Take the end of the cable sleeving with the two collars and slide it down into the notch in the center of the bracket (be sure that one collar is on each side of bracket). By releasing the collars, slide the sleeving until there is at least 3” of sleeving protruding out past the bracket. Secure in place by sliding the collars as tight to the bracket as possible and snugging up on the set screw (do not over tighten) refer to detail 2.

7. Pull release chain and release cable so that both are taunt, being careful not to engage either of the two. Connect the two together using the keyring on the end of the spring.

TEST BRAKE RELEASE:

After the installation is complete pull the release chain to insure the brake disengages. If the brake does not fully disengage it can be adjusted by hooking the key ring further away from the operator. Move the key ring one chain link at a time, testing each time. Refer to drawing below for additional help.

DETAIL 2

COLLAR W/SET SCREW

FIGURE 1

CABLE STOP SLEEVE

CABLE CLAMP

DETAIL 1

RELEASE CABLE

CABLE SLEEVING

TO ADJUST TENSION ON BRAKE RELEASE, MOVE KEYRING AWAY FROM OPERATOR ONE LINK AT A TIME. BE SURE TO TEST AFTER EACH ADJUSTMENT.

RELEASE CABLE