Chamberlain 1145- 1-3HP, 1160- 1-2 HP, 1150- 1-3HP, 1156- 1-2HP, 1155 - 1-2HP User Manual

Lift-Master

Model 1156- 1/2HP
Model 1146 - 1/3HP

Model 1140- 1/4HP

Garage Door Opener

Owner's Manual

FOR RESIDENTIAL USE ONLY

Model 1160- 1/2 HP

Model 1150- 1/3HP

The Chamberlain Group, Inc.
A DUCHOSSOIS ENTERPRISE
845 Larch Avenue, Elmhurst, Illinois 60126

Model 1155 - 1/2HP

Model 1145- 1/3HP

CAUTION! PLEASE READ THIS MANUAL CAREFULLY

The MODEL NUMBER label is located on the front panel of your opener

THIS DEVICE COMPLIES WITH FCC RULES PART 15. Operation of this device is subject to the following two conditions: 1. This device
may not cause harmful interference. 2.This device must accept any interference that may be received including interference
undesired operation.

CONTENTS PAGE

Safety Rules.............................................................2

Carton Inventory.......................................................3

Features of Your Opener...........................................3

Specifications ........................................................... 3

Accessories..............................................................4

Completed Installation Illustration ............................. 5

Installation Information ............................................. 5

Operation of Your Opener.........................................6

Care and Maintenance of Your Opener......................7

Assembly.................................................................. 8

Installation................................................................10

FASTEN THIS MANUAL NEAR THE GARAGE DOOR AFTER INSTALLATION.

PERIODIC CHECKS OF THE OPENER ARE REQUIRED TO INSURE SATISFACTORY OPERATION.

CONTENTS PAGE

Limit Adjustment....................................................... 20

Force Adjustment......................................................21

Safety Reverse Test..................................................22

The Protector System.............................................22

Setting/Changing Code.............................................23

Having a Problem? ...................................................24

Repair Parts, Rail Assembly......................................26

Repair Parts, Installation........................................... 26

Repair Parts, Opener Assembly................................27

How To Order Repair Parts.......................................28

Warranty .................................................................. 28

that may cause

ACCESSORIES

10-FT T-RAIL:

OUTSIDE KEYLOCK:

Many useful accessories are available for your garage door opener. They are illustrated below with model numbers and
descriptions.

Model 61LM

STANDARD REMOTE CONTROL
TRANSMITTER:

Single-Function with visor clip

.

Model 1710

Fully assembled 10-ft. T-rail with full
chain. Allows 10-foot garage doors
to open fully

Model 62LM 2-CHANNEL REMOTE CONTROL

TRANSMITTER:

With visor clip.

Model 63LM

Model 64LM

Model 66LM

Model 1708

MULTI-FUNCTION REMOTE
CONTROL TRANSMITTER:

With visor clip.

MINI MULTI-FUNCTION REMOTE
CONTROL TRANSMITTER:

With key ring.

KEYLESS ENTRY SYSTEM:

Enables homeowner to operate
garage door opener from outside by
entering code on specially designed
keypad.

8-FT T-RAIL:

Fully assembled 8-ft. T-rail with full
chain. Allows 8-ft. garage doors to
open fully

Model 56

Model 60

Model 1702

Model 70

MULTI-FUNCTION CONTROL
PANEL:

Provides a Lock Switch feature
which prevents operation of garage
door opener from remote control
transmitters and a Light Switch
feature for constant light.

Opens garage door automatically
from outside when transmitter is not
handy

OUTSIDE QUICK RELEASE

LOCK:
REQUIRED for a garage with NO
service door.

Allows manual operation of garage
door from outside in case of power
failure .

"THE PROTECTOR SYSTEM":

Provides auxiliary support to the safety
features built into your opener. The
system's invisible beam, when broken by
an obstruction, causes a closing door to
open and prevents an open door from
closing. Strongly recommended for
homeowners with young children.

BEFORE YOU BEGIN, PLEASE TAKE SOME TIME TO CAREFULLY EXAMINE THE
ILLUSTRATIONS ON THE FOLLOWING PAGE OF A TYPICAL GARAGE DOOR OPENER
INSTALLATION ON BOTH A SECTIONAL AND A ONE-PIECE DOOR.

Some installation instructions vary for sectional and one-piece doors. Follow only those
instructions which apply to your door type.

Do you have a finished ceiling in your garage? If so, you will need a support bracket
and additional fastening hardware. Refer to Step 4, Page 13 for specific requirements.

Do you have a lightweight or metal door (or does it have glass panels)? If so,
horizontal and vertical reinforcement is required. Refer to Step 8, Page 17.

4

Adjustment

STEP 1

LIMIT ADJUSTMENT settings regulate the points at
which the door will stop when moving up or down.

NOTE: Door STOPS in the UP direction if anything
interferes with door travel. Door REVERSES in the
DOWN direction if anything interferes with the door
travel (including binding or unbalanced doors).

PROCEDURE: To operate the opener, press the Door

Control Button. Run the opener through a COMPLETE
TRAVEL CYCLE. No limit adjustments are necessary
when the door opens and closes completely and doesn't
reverse unintentionally when fully closed.

The following chart outlines adjustment procedures. Run the opener through a COMPLETE TRAVEL
CYCLE AFTER EACH ADJUSTMENT.

Adjust UP and DOWN Limits

NOTE: REPEATED OPERATION OF THE OPENER DURING ADJUSTMENT PROCEDURES MAY CAUSE
MOTOR TO OVERHEAT AND SHUT OFF. SIMPLY WAIT 15 MINUTES AND TRY AGAIN.

Read the chart carefully before proceeding to Step 2. Use a screwdriver to make limit adjustments.

LIMIT ADJUSTMENT CHART

IF DOOR DOES NOT OPEN COMPLETELY

BUT OPENS AT LEAST FIVE FEET

Increase UP travel. Turn the UP LIMIT adjustment
screw clockwise. One turn equals 2" of travel.

If door does not open at least 5 feet: adjust UP
(OPEN) FORCE as explained in Step 2.

IF DOOR DOES NOT CLOSE COMPLETELY

Increase DOWN travel. Turn down limit adjustment
screw counterclockwise. One turn equals 2" of travel.

If the door still will not close completely, the header
bracket is positioned too high. See Step 1, page 10.

Increase DOWN travel. Turn down limit adjustment
screw counterclockwise. One turn equals 2 inches of
travel.

Decrease DOWN travel. Turn down limit adjustment
screw clockwise. One turn equals 2 inches of travel.

IF DOOR REVERSES WHEN CLOSING AND THERE
IS NO INTERFERENCE TO TRAVEL CYCLE

Test door for binding: Pull manual release handle.
Manually open and close door. If door is binding, call a
door serviceman. If door is not binding or unbalanced,
adjust DOWN (CLOSE) FORCE. See Step 2.

IF ONE-PIECE DOOR DOES NOT

CLOSE COMPLETELY

IF OPENER REVERSES IN FULLY

CLOSED POSITION.

20

ADJUSTMENT STEP 2

Adjust Force

Force Adjustment Controls are located on rear panel of
opener. FORCE ADJUSTMENT settings regulate amount
of the power required to open and close door.

NOTE: The door STOPS in the UP direction if
anything interferes with its travel. Door REVERSES
in the DOWN direction if anything interferes with its
travel (including binding or unbalanced doors).

If the force adjustments are set too light, door travel ma y
be interrupted by nuisance reversals in DOWN direction
and stops in UP direction. Weather conditions can affect
the door movement, so occasional adjustment may be
needed.

Maximum force adjustment range is 260 degrees, about
3/4 of a complete turn. Do not force controls beyond that
point. Turn force adjustment controls with a screwdriver.

DO NOT USE FORCE ADJUSTMENTS TO
COMPENSATE FOR A BINDING OR
STICKING GARAGE DOOR EXCESSIVE

FORCE WILL INTERFERE WITH THE PROPER
OPERATION OF THE SAFETY REVERSE SYSTEM OR
DAMAGE THE GARAGE DOOR.

Adjustment Label

FORCE ADJUSTMENT CHART

TEST DOWN (CLOSE) FORCE

Grasp the door handle or door bottom when door is about
halfway through DOWN (CLOSE) TRAVEL. Door should
reverse. If the door is hard to hold or doesn't
reverse,decrease DOWN (CLOSE) FORCE by turning the
control in a counterclockwise direction. Make 10 degree
turn adjustments until door reverses normally. After each
adjustment, run opener through a complete cycle.

PROCEED TO STEP 3

IF DOOR DOESN'T OPEN AT LEAST 5 FEET

Increase UP (OPEN) FORCE by turning the control in a
clockwise direction. Make 10 degree turn adjustments until
door opens completely.Readjust UP LIMIT if necessary.
After each adjustment, run opener through a complete
travel cycle.

IF DOOR REVERSES DURING DOWN

(CLOSE) CYCLE

Increase DOWN (CLOSE) FORCE by turning control
clockwise. Make 10 degree turn adjustments until door
completes close cycle. After each adjustment, run the
opener through a complete travel cycle.

21

ADJUSTMENT STEP 3

Test Safety Reverse System

PROCEDURE: Place-a one-inch obstacle on the floor
under the garage door. Operate door in DOWN direction.
The door MUST reverse on the obstruction.

If the door STOPS on the obstruction, it is not traveling
far enough in the DOWN direction. Increase the DOWN
limit by turning DOWN limit adjustment screw
counterclockwise 1/4 turn. REPEAT TEST.

NOTE: Make sure limit adjustments do not force the
door arm beyond a straight up and down position.
See the illustration on Page 18/19.

When the door reverses on the one-inch obstacle,
remove the obstruction and run the opener through a
complete travel cycle.

Door MUST NOT reverse in closed position. Repeat
Adjustment Steps 1, 2 and 3 if necessary.

THE SAFETY REVERSE SYSTEM TEST IS
IMPORTANT. GARAGE DOOR MUST RE­VERSE ON CONTACT WITH A ONE-INCH

OBSTACLE PLACED ON THE FLOOR. FAILURE TO
PROPERLY ADJUST OPENER MAY RESULT IN
SERIOUS PERSONAL INJURY FROM A CLOSING
GARAGE DOOR. REPEAT TEST ONCE A MONTH AND
ADJUST AS NEEDED.

THE PROTECTOR SYSTEM

Installation of Optional Safety Feature

After opener has been installed and adjusted, THE
PROTECTOR SYSTEM accessory can be installed.

REPEAT ADJUSTMENT STEP 3 AFTER:

• EACH ADJUSTMENT OF DOOR ARM LENGTH, CLOSE
FORCE OR DOWN LIMIT.

• ANY REPAIR OR ADJUSTMENT OF GARAGE DOOR
(INCLUDING SPRINGS AND HARDWARE).

• ANY REPAIR OR BUCKLING OF THE GARAGE FLOOR R.

• ANY REPAIR OR ADJUSTMENT OF THE GARAGE DOOR
OPENER.

THE PROTECTOR SYSTEM PROVIDES AN ADDITIONAL
MEASURE OF SAFETY AGAINST A SMALL CHILD BEING
CAUGHT UNDER A GARAGE DOOR. It uses an invisible
beam which, when broken by an obstruction, causes a
closing door to open and prevents an open door from
closing. STRONGLY RECOMMENDED FOR HOMEOWNERS
WITH YOUNG CHILDREN.

Instructions are included with this optional
device.

22

Radio Controls

REMOTE CONTROL

TRANSMITTER

F.C.C. rules prohibit adjustments to or modification of receiver and/or remote control
transmitter circuitry except for changing the code setting and replacing the remote
control transmitter battery. THERE ARE NO USER SERVICEABLE PARTS.

Manufactured under 1 or more of the following U.S. patents: RE29,525: 4,037,201;

4.750.118: 4.806.930 Other Patents Pending

SHOULD ENTER OR LEAVE GARAGE WHILE DOOR IS IN
MOTION. DO NOT ALLOW CHILDREN TO OPERATE

ACTIVATE THE OPENER ONLY WHEN DOOR IS
IN FULL VIEW, FREE OF OBSTRUCTION AND
PROPERLY ADJUSTED . NO ONE

REMOTES OR DOOR CONTROL BUTTONS. DO NOT
ALLOW CHILDREN TO PLAY NEAR THE DOOR.

Your garage door opener receiver and remote control transmitter have been set at the factory to a matching

If you want to CHANGE your code or purchase additional remotes, follow the Instructions below. The code

code.
in any NEW remote control must be set to match the code in the original remote control.

MATCH/CHANGE THE CODE IN REMOTE CONTROL(S)

SET CODE SWITCHES IN ALL REMOTES TO MATCHING POSITIONS

PROCEDURE: Slide battery compartment cover back to access the

code switches in your single function remote control and any new
remote control

Place remote controls side by side as shown and set code switches
in ALL remotes to matching positions (+, -, 0). Use a pen or
screwdriver to slide the switches.

NOTE: Instructions for matching the code switches in two-channel and multi-function remote control

transmitters are included with those accessories.

MATCH/CHANGE THE CODE IN THE RECEIVER

GARAGE DOOR OPENERS

WITH RECEIVER SMART CODE BUTTON

1. Press the RECEIVER Smart Button on the back panel of the
opener as shown The adjacent indicator light will turn ON.

CAUTION: Door will begin to move immediately if any
transmitter has been activated.
If this occurs, wait until the door has completed its UP or
DOWN cycle. Then begin again at Step 3.

2. STAND AWAY FROM THE DOOR and press the remote
control transmitter push button The indicator light will turn OFF
and the door will move. Receiver and remote control(s) codes
now match. The opener will operate when either the door
control button or the remote control transmitter

pressed

push button is

NOTE: If the remote control transmitter push button

is not pressed within 30 seconds, the indicator light
will turn

OFF. In that case, begin again at Step 1.

Push
Button

23

Repair Parts

4 Strand

Bell Wire
217A241

7

13

Master Link Kit

1

1A995

RAIL ASSEMBLY PARTS LIST

Inner Trolley w/Rod

41B3243

2

Outer Trolley

4

41B3244

5

Chain

Pulley Bracket

41A2780

One-Piece

T-Rail

183B99

3

Full Chain Assy.

41D384

6

NOT SHOWN

Owners Manual

114A1225

8

Straight Door
Arm Section
178B34

INSTALLATION PARTS LIST

9

Remote Control Transmitter

Case, Cover & Screw Assembly

(circuit board not included)

41A3593

14

Remote Control

Transmitter

Visor Clip

29C128

10

11

12V Battery

10A14

15

Curved Door
Arm Section

178B35

Lighted Push

Button Assembly

41A2756

2 Strand
Bell Wire
217A238

16

Emergency Rope

& Handle Assembly

41A2828

12

17

Door Bracket

12B374

Multi-Function

Control Panel

41A3586

18

Door Bracket
Plate 12B380

19

Header Bracket Plus

Clevis and Fastener

41A2829

26

Repair Parts

41A3627

41A3712
41A2825

Chassis Assembly Parts List

KEY PART
NO. NO. DESCRIPTION

1 41A3260 Sprocket cover with screw and idler pulley

31C290 Sproket cover (1160, 1155, 1145, 1140)

2 41A3261 Gear and sprocket assy. (1156, 1146)

41A2827 Gear and sprocket assy. (All other models)

3 41A2817 Drive/worm gear kit w/grease
4 41B2991

5 143D100
6 143D110
7 175B88
8 108D36

108D34

9 30B363

30B387

30B366
10 12A373
11 41D3150

(1156, 1146)

Complete with:
Spring washer
Thrust washer
Retaining ring
Bearing plate
Roll pins (2)
Drive gear and Worm gear
Helical gear w/retainer and Grease

Roll pins (2)
Line cord

End panel w/all labels
End panel w/all labels (1160, 1150)
Light socket
Lens
Lens (1160, 1150)
Capacitor- 1/2 h:p.
Capacitor- 1/3 h.p.
Capacitor- 1/4 h.p.
Capacitor bracket
Terminal block w/screws

KEY PART
NO. NO. DESCRIPTION

12 41D3058 Universal replacement motor & bracket assy.

41A3583-2

13

41A3583-1

14

41A3583

15

41A2818

16

41D3452
41C3005

17

41C2726

18

41A2826

19

41A2822

20

41A3626

21 41A3673

Complete with: Motor, worm, bracket,
bearing assembly RPM sensor

Cover (1160, 1156, 1155)
Cover (1150, 1146, 1145)
Cover (1140)
Helical gear 8 retainer w/grease
Limit switch assembly
RPM sensor assembly
Wire harness assy. w/plug
Shaft bearing kit
Interrupter cup assy.
Receiver Logic Board assy. (1160, 1150)

Receiver logic board assy. (All other models)
Complete with:
Logic board
End panel w/all labels
Light socket (1160. 1150 only}

End panel wlall labels (1160, 1150)
End panel w/all labels (All other models)

NOT SHOWN Chassis assy. hardware kit
(includes screws not designated by a number
in illustration)

27

LIFT-MASTER SERVICE

• PART NUMBER

• PART NAME

HOW TO ORDER

IS ON CALL

OUR LARGE SERVICE ORGANIZATION

SPANS AMERICA

INSTALLATION AND SERVICE INFORMATION IS AS
NEAR AS YOUR TELEPHONE SIX DAYS A WEEK.
SIMPLY DIAL OUR TOLL FREE NUMBER:

1-800-528-6563

HOURS: 7:00 a.m. TO 3:30 p.m.

(Mountain Std. Time)

MONDAY through SATURDAY

For professional installation, parts and service, contact your

local LIFT-MASTER/CHAMBERLAIN
dealer. Look for him in the Yellow Pages, or call our Service
number for a list of dealers in your area.

REPAIR PARTS

Selling prices will be furnished on request or parts will be
shipped at prevailing prices and you will be billed accordingly.

WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE
FOLLOWING INFORMATION

• MODEL NUMBER

ADDRESS ORDERS TO:

THE CHAMBERLAIN GROUP, INC.

Parts and Service Department

2106 N. Forbes Boulevard

Tucson, AZ. 85745

SERVICE INFORMATION

TOLL FREE NUMBER:

1-800-528-6563

LIFT-MASTER GARAGE DOOR OPENER ONE-YEAR LIMITED WARRANTY

The Chamberlain/Lift-Master warrants to the first retail purchaser of this product that it will be free from any defect in materials and/or workmanship for a
period of twelve full months from the date of purchase. The product must be used in complete accordance with Lift-Master's instructions for installation,
operation and care.

LIMITED WARRANTY ON MOTOR

Model 1160: The motor is warranteed to be free from any defect in materials and/or workmanship for a period of 60 full months (5 years) from the date of

purchase.

Models 1156, 1155: The motor is warranteed to be free from any defect in materials and/or workmanship for a period of 48 full months (4 years) from the

date of purchase.

Model 1150: The motor is warranteed to be free from any defect in materials and/or workmanship for a period of 36 full months (3 years) from the date of

purchase.

Models 1146, 1145: The motor is warranteed to be free from any defect in materials and/or workmanship for a period of 24 full months (2 years) from the

date of purchase.
This warranty does not cover non-defect damage, damage caused by unreasonable use (including abuse, failure to provide reasonable and necessary

maintenance, or any alterations to the product), labor charges for dismantling or reinstalling of a repaired or replaced unit or replacement batteries.

If, during the warranty period, the product appears as though it may be defective CALL OUR TOLL FREE SERVICE NUMBER BEFORE DISMANTLING

IT (1-800-528-6563). If the product is then alleged to be defective please send it pre-paid and insured to our Service Center to obtain warranty repair. You

will be advised of shipping instructions when you call the number listed above.

Please be sure to include a brief description of the problem and a dated proof-of-purchase receipt with any product that is returned for warranty repair.

Product under warranty, which upon receipt by Chamberlain/Lift-Master is determined to be defective in materials and/or workmanship, will be repaired or

replaced (Chamberlain's option) at no cost to you and returned pre-paid. Defective parts will be repaired or replaced with new or factory rebuilt parts at

Chamberlain's option.

THE DURATION OF IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IS LIMITED TO THE

DURATION OF THIS WRITTEN WARRANTY. SOME STATES MAY NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS,

SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.

All claims for consequential or incidental damages for breach of this warranty are excluded and in no event shall manufacturer's liability for breach of

warranty, negligence, strict liability or breach of contract exceed the cost of the product covered herein, but the purchaser is entitled to the remedies

expressly provided in this policy. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or

exclusion may not apply to you.

No representative or person is authorized to assume for us any other liability in connection with the sale of this product. This warranty gives you specific

legal rights, and you may also have other rights which may vary from state to state.

114A1225E

 1990, The Chamberlain Group, Inc.

All rights reserved

Printed in Mexico