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TM

The Chamberlain Group, Inc.

A DUCHOSSOIS ENTERPRISE

845 Larch Avenue

Elmhurst, Illinois 60126-1196

Garage Door Opener

Model 1270

- 1/2 HP -

For Residential Use Only 

Complies with
UL 325
Regulations
effective 
January 1, 1993

®

Owner's Manual

Please read this manual and the enclosed safety materials carefully!

Fasten the manual near the garage door after installation.

The door WILL NOT CLOSE unless the Protector System

®

is connected and

properly aligned.

Periodic checks and adjustment of the opener are required to ensure safe
operation.

The model number label is located under the light lens on the left side panel
of your opener as shown.

Summary of Contents for Lift-Master Professional 1270

Page 1: ...993 Owner s Manual Please read this manual and the enclosed safety materials carefully Fasten the manual near the garage door after installation The door WILL NOT CLOSE unless the Protector System is...

Page 2: ...trolley one piece door 23 Adjustment section pages 24 26 Travel limit adjustments 24 Force adjustments 25 Test the safety reversing sensor 26 Test the safety reverse system 26 Operation safety instruc...

Page 3: ...An unbalanced garage door might not reverse when required and someone under the door could be seriously injured or killed If your garage door binds sticks or is out of balance call for professional ga...

Page 4: ...oss width of door FINISHED CEILING Extension Spring Torsion Spring Access Door OR OR One Piece Door Extension Spring Header Wall Door Track Slack in belt tension is normal when garage door is closed B...

Page 5: ...rol Transmitter 1 with 12V battery Light Lens 2 Remote Control Transmitter Visor Clip One Piece T rail Styrofoam Belt Pulley Bracket Trolley Belt LIGHT LOCK Multi Function Door Control Panel Safety Re...

Page 6: ...18x1 2 Styrofoam Belt T Rail Hole USE ONLY THIS TYPE AND SIZE SCREW T Rail Hole Opener Sprocket Belt Washered Screw 5 16 18x1 2 T Rail Hole ASSEMBLY STEP 2 Set the Belt Tension By hand thread the spr...

Page 7: ...ng parts of the door 7 Install the User Safety Instruction Label on the wall adjacent to the control button and the Maintenance Instruction Label in a prominent location on the inside of the garage do...

Page 8: ...ach it to the ceiling refer to page 10 when clearance is minimal If you need to install the header bracket on a 2x4 on wall or ceiling use lag screws not supplied to securely fasten the 2x4 to structu...

Page 9: ...Add 8 Bracket height on header wall 12 Measure UP from top of CLOSED door Proceed to Step 2 page 10 9 ONE PIECE Door Without Track Open your door to the highest point of travel as shown Measure the di...

Page 10: ...eiling mount Drill 3 16 pilot holes and fasten the bracket securely to a structural support with the hardware provided Extend the vertical guideline onto the ceiling as shown Center the bracket on the...

Page 11: ...ner on the garage floor below the header bracket Use packing material as a protective base If the door spring is in the way you ll need help Have someone hold the opener securely on a temporary suppor...

Page 12: ...the T rail If the top panel hits the trolley when you raise the door pull down on the trolley release arm to disconnect the inner and outer sections The trolley can remain disconnected until Step 12...

Page 13: ...the T rail is centered over the door or in line with the header bracket if the bracket is not centered above the door Remove the 2x4 Operate the door manually If the door hits the rail raise the heade...

Page 14: ...d door hardware Fasten the Multi Function Door Control securely with 6ABx1 screws If installing into drywall drill 5 32 holes and use the anchors provided Run the bell wire up the wall and across the...

Page 15: ...s closed Garage doors are heavy If the door is open when the handle is pulled the door could close inadvertently if it is not properly balanced Serious injury may result to persons under the door Make...

Page 16: ...ed 3 prong cord Connect the black line wire to the screw on the brass terminal the white neutral wire to the screw on the silver terminal and the ground wire to the green ground screw The opener must...

Page 17: ...d a piece of wood at each location if installing in masonry construction The invisible light beam path must be unobstructed No part of the garage door or door tracks springs hinges rollers or other ha...

Page 18: ...rack Installation Procedure Fasten the C wraps to the mounting brackets having square holes using the hardware shown in 2 Garage Wall Installation Procedure Connect each assembly to a slotted bracket...

Page 19: ...ows with a steady light When indicator lights are glowing steadily in both units tighten the wing nut in the receiving eye unit 19 Push connector in until you hear a click Tab should be flush with bac...

Page 20: ...ing limits A The top edge of the bracket 2 4 below the top edge of the door B The top edge of the bracket directly below any structural support across the top of the door Mark and drill 5 16 left and...

Page 21: ...enter the bracket on the top of the door in line with the header bracket as shown Mark holes Drill 5 16 pilot holes and fasten the door bracket with hardware supplied If the door has no exposed framin...

Page 22: ...Screws 5 16 18x7 8 Manual Release Handle Rope Figure 3 If holes in curved arm are above holes in straight arm disconnect straight arm Cut about 6 from the solid end Reconnect to trolley with cut end d...

Page 23: ...to the floor and lift the door arm to the trolley The arm should touch the trolley just in back of the door arm connector hole Refer to the fully open trolley door arm positions in the illustration If...

Page 24: ...ls 2 of travel If door does not open at least 5 feet Adjust the UP open force as explained in Adjustment Step 2 If the door does not close completely Increase down travel Turn the DOWN limit adjustmen...

Page 25: ...G KG 1 3 9 7 5 1 3 9 7 5 1 2 3 How and When to Adjust the Forces Test the DOWN close force Grasp the door bottom when the door is about halfway through DOWN close travel The door should reverse Revers...

Page 26: ...tep 3 Test The Safety Reversing Sensor Press the remote control push button to open the door Place the opener carton in the path of the door Press the remote control push button to close the door The...

Page 27: ...e the risk of severe injury or death to persons 1 READ AND FOLLOW ALL INSTRUCTIONS 2 Do not permit children either to operate or to play with the opener Keep remote control in a location inaccessible...

Page 28: ...ize is 75 watts maximum The lockout feature prevents the trolley from reconnecting automatically Pull the manual release handle down and back toward the opener The door can then be raised and lowered...

Page 29: ...r will operate with up to twelve Smart remote control transmitters with green indicator lights a Keyless Entry System and code switch remote controls with red indicator lights Below are instructions f...

Page 30: ...ontrol code Refer to instructions on the opener panel 3 Does the battery test light glow when the remote control push button is pressed If not replace the battery 4 Program the receiver to match the r...

Page 31: ...tion decrease the travel limits page 24 Repeat the safety reverse test after adjustments to force or travel limits The need for occasional adjustment of the force and limit settings is normal Weather...

Page 32: ...Transmitter visor clip 4 41A3984 7 Remote control case cover screw only no circuit board 5 41A2828 Manual release rope handle assy 6 217A238 2 Conductor bell wire white white red 7 12B374 1 Door brack...

Page 33: ...harness assembly with plug 6 41A4252 6B Receiver logic board assembly Complete with Logic board 7 41A4435 End panel w all labels 8 175B88M Light socket 9 108D34 Lens KEY PART NO NO DESCRIPTION 10 30B...

Page 34: ...le Outside Quick Release Required for a garage with NO access door 10 foot Complete Rail To allow a 10 foot door to open fully 8 foot Complete Rail To allow an 8 foot door to open fully Model 61LM Sin...

Page 35: ...ents 30 31 Safety warnings 24 27 Manual Release Rope Handle Lockout feature 28 Manual disconnect 28 Safety warnings 7 15 27 28 Opener Terminals Door control connections 14 Safety reversing sensor conn...

Page 36: ...RRANTY 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...

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