Chamberlain 1345M User Manual

The Chamberlain Group, Inc.845 Larch AvenueElmhurst, Illinois 60126-1196www.liftmaster.comGARAGE DOOR OPENERModel Series 1300For Residential Use Only

10ASSEMBLY STEP 4Attach the Chain Spreaderand Re-install the ChainMODELS 1356M AND 1346M ONLY• Line up the holes in the chain spreader with the holesi

11ASSEMBLY STEP 5Tighten the ChainALL MODELS• Spin the inner nut and lock washer down the trolleythreaded shaft, away from the trolley.• To tighten th

12INSTALLATION STEP 1Determine the Header BracketLocationInstallation procedures vary according to garage doortypes. Follow the instructions which app

13Header WallVerticalCenterlineof GarageDoor2x4UnfinishedCeiling2x4OPTIONALCEILING MOUNTFOR HEADER BRACKETStructuralSupportsONE-PIECE DOOR WITHOUT TRA

14INSTALLATION STEP 2Install the Header BracketYou can attach the header bracket either to the wallabove the garage door, or to the ceiling. Follow th

15Clevis Pin5/16"x2-3/4"Ring FastenerINSTALLATION STEP 3Attach the Rail to the Header Bracket• Position the opener on the garage floor belo

16ONE-PIECE DOOR WITHOUT TRACK• With the door fully open and parallel to the floor,measure the distance from the floor to the top of thedoor.• Using a

17INSTALLATION STEP 5Hang the OpenerTwo representative installations are shown. Yours maybe different. Hanging brackets should be angled (Figure1) to

18To prevent possible SERIOUS INJURY or DEATH fromelectrocution:• Be sure power is not connected BEFORE installing doorcontrol.• Connect ONLY to 24 VO

19INSTALLATION STEP 7Install the Light and Lens INSTALL THE LIGHT• Install an A19 standard neck, 75 watt maximum lightbulb in the socket. The light wi

2When you see these Safety Symbols and Signal Wordson the following pages, they will alert you to thepossibility of serious injury or death if you do

20INSTALLATION STEP 9Electrical RequirementsTo avoid installation difficulties, do not run theopener at this time.To reduce the risk of electric shock

21Invisible Light BeamProtection AreaSafety Reversing Sensor6" (15 cm) max. above floorSafety Reversing Sensor6" (15 cm) max. above floorFac

22DOOR TRACK MOUNT (RIGHT SIDE)IndicatorLightLensLip SensorBracketDoorTrackFLOOR MOUNT (RIGHT SIDE)WALL MOUNT (RIGHT SIDE)IndicatorLightSensorBracketL

23Carriage Bolt 1/4"-20x1/2"LensWing Nut1/4"-20Figure 5MOUNTING AND WIRING THE SAFETY REVERSINGSENSORS• Slide a 1/4"-20x1/2"

24INSTALLATION STEP 11Fasten the Door Bracket Follow instructions which apply to your door typeas illustrated below or on the following page.A horizon

25Header WallVerticalCenterline ofGarage DoorFinished CeilingOptionalPlacementof DoorBracketHeaderBracketDoorBracket2x4 SupportFor a door with no expo

26INSTALLATION STEP 12Connect Door Arm to TrolleyFollow instructions which apply to your door type asillustrated below and on the following page.SECTI

27ALL ONE-PIECE DOORS1. Assemble the door arm, Figure 4:• Fasten the straight and curved door arm sectionstogether to the longest possible length (wit

28ADJUSTMENT STEP 1Adjust the UP and DOWN Travel LimitsLimit adjustment settings regulate the points at which thedoor will stop when moving up or down

29ADJUSTMENT STEP 2Adjust the ForceForce adjustment controls are located on the back panelof the motor unit. Force adjustment settings regulate theamo

3To prevent damage to garage door and opener:• ALWAYS disable locks BEFORE installing and operating theopener. • ONLY operate garage door opener at 12

30Without a properly installed safety reversal system, persons(particularly small children) could be SERIOUSLY INJUREDor KILLED by a closing garage do

31OPERATION Using Your Garage Door OpenerYour Security✚®opener and hand-held remote controlhave been factory-set to a matching code which changeswith

32To Open the Door ManuallyThe door should be fully closed ifpossible. Pull down on theemergency release handle and liftthe door manually. To reconnec

33Having a Problem?1. The opener doesn't operate from either the DoorControl or the remote control:• Does the opener have electric power? Plug a

34Having a Problem? (Continued)6. The garage door opens and closes by itself:• Be sure that all remote control push buttons are off.• Remove the bell

35*3-Button RemotesIf supplied with yourgarage door opener, thelarge button is factoryprogrammed to operateit. Additional buttons onany Security✚®3-bu

361. Press and release the “learn”button on motor unit. The learnindicator light will glow steadilyfor 30 seconds.2. Within 30 seconds, enter a fourdi

377 UP CEILING MOUNT ONLY 11 10 NOTICE 5 6 8 1 4 9 12 3 2 Installation PartsREPAIR PARTSKEY PARTNO. NO. DESCRIPTION 1 41A4166 Door control button2 37

38Motor Unit Assembly Parts212A108131415161943DNUPBrownWire(Down)ContactLIMIT SWITCH ASSY.GreyWireYellowWire(Up)ContactCenter LimitContactDriveGear920

39ACCESSORIES CLOSEDOPENLOCKLIGHT374LM370LM915LM395LM990LM1702LMOutside Quick Release:Required for a garage with NO accessdoor. Enables homeowner to o

4Safety Reversing SensorSupport bracket & fastening hardwareis required.See page 17. — — — — — — — —Header WallFINISHED CEILINGTorsi

© 2008, The Chamberlain Group, Inc.114A3587 All Rights ReservedLIFTMASTER®SERVICE ISON CALLOUR LARGE SERVICE ORGANIZATIONSPANS AMERICAINSTALLATION AND

5Without a properly working safety reversal system, persons(particularly small children) could be SERIOUSLY INJUREDor KILLED by a closing garage door.

6Straight Door Arm Section Curved Door Arm Section Safety LabelsandLiteratureHeader Bracket UP CEILING MOUNT ONLY Sprocket Cover 2-Conductor Bell Wi

7Hardware InventorySeparate all hardware and group as shown below for the assembly and installation procedures.Nut 5/16"-18 (4) Clevis Pin 5/16&q

8To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of theopener.ASSEMBLY STEP 1Fasten the Rail to the M

9ASSEMBLY STEP 3Fasten the Rail to the Motor UnitMODELS 1356M AND 1346M ONLY• Remove the two washered bolts mounted in top ofmotor unit.• Align rail a