Owner’s Manual Please read this manual and the enclosed safety materials carefully! Fasten the manual near the garage door after installation. The
10Clevis Pin5/16"x2-3/4"Ring FastenerHeaderBracketChainPulleyBracketTemporarySupportHeader WallGarageDoorRailClevis Pin5/16"x2-3/4"
11INSTALLATION STEP 4Position the OpenerSECTIONAL DOOR ONLYA 2x4 laid flat is convenient for setting an ideal door-to-rail distance. • Raise the opene
12Drywall AnchorsInsulatedStaples Screw 6ABx1-1/2" Lighted Door Control ButtonHARDWARE SHOWN ACTUAL SIZETo prevent possible SERIOUS INJURY or DEA
13INSTALLATION STEP 7Install the Light • Install a 75 watt maximum light bulb in the socket.The light will turn ON and remain lit forapproximately 4-1
14INSTALLATION STEP 9Electrical RequirementsTo avoid installation difficulties, do not run theopener at this time.To reduce the risk of electric shock
15Invisible Light BeamProtection AreaSensor Beam6" (15 cm) max.above floorSensor Beam6" (15 cm) max.above floorFacing the door from inside t
16InsideGarageWall“C” ShapedWrapMounting Bracketwith Square Holes1/4-20x1/2"Carriage Bolts1/4"-20 Lock NutsDrill 3/8"HolesGarageDoor Tr
17Hex Bolt1/4-20 x 1-1/2""C" WrapSensorwith WireWingNutIndicator LightFigure 6Invisible Light BeamProtection AreaSensorSensorConnect Wi
If your installation doesn't require vertical reinforcement but does need top and bottomfastening holes for the door bracket, fasten as shownin F
19INSTALLATION STEP 12Connect Door Arm to TrolleySECTIONAL DOORS ONLY• Make sure garage door is fully closed. Pull theemergency release handle to disc
2Introduction 2-5Safety symbol and signal word review...2Preparing your garage door ...3Tool
20ADJUSTMENT STEP 1Adjust the UP and DOWN TravelLimitsLimit adjustment settings regulate the points at whichthe door will stop when moving up or down.
ADJUSTMENT STEP 2Adjust the ForceForce adjustment controls are located on the backpanel of the motor unit. Force adjustment settingsregulate the amoun
Without a properly installed safety reversal system,persons (particularly small children) could beSERIOUSLY INJURED or KILLED by a closing garagedoor.
OPERATION Using Your Garage Door OpenerYour opener will operate with up to eight Security✚®remote controls and one Security✚®Keyless EntrySystem. Acti
24To Open the Door ManuallyThe door should be fullyclosed if possible. Pull downon the emergency releasehandle and lift the doormanually. To reconnect
25Having a Problem?1. The opener doesn’t operate from either the DoorControl or the remote control:• Does the opener have electric power? Plug a lamp
26The 300 Series remote control works only with dooropeners and light controls having a purple “Learn”button. Programming instructions are described a
271. Press and release the “learn”button on motor unit. The learnindicator light will glow steadily for30 seconds.2. Within 30 seconds, enter a fourdi
28Multi-Function Door Control (Optional)OPERATION OF THE MULTI-FUNCTION DOOR CONTROLPress the push button to open or closethe door. Press again to rev
6UPCEILING MOUNT ONLY101NOTICE3549811 12 272921345Installation PartsREPAIR PARTSRail Assembly PartsKEY PARTNO. NO. DESCRIPTION1 4A1008 Master link k
3To prevent damage to garage door and opener:• ALWAYS disable locks BEFORE installing and operatingthe opener. • ONLY operate garage door opener at 12
30Motor Unit Assembly Parts97121314151848111710163561815DNUPBrownWire(Down)ContactLIMIT SWITCH ASSY.GreyWireYellowWire(Up)ContactCenter LimitContactDr
31ACCESSORIESLOCKLIGHT370LMCD10081702LMOutside Quick Release:Required for a garage with NOaccess door. Enableshomeowner to open garage doormanually fr
© 2006, The Chamberlain Group, Inc.114A3155D All Rights ReservedLIFTMASTER®SERVICEIS ON CALLOUR LARGE SERVICE ORGANIZATIONSPANS AMERICAINSTALLATION AN
Safety Reversing SensorHorizontal and vertical reinforcementis needed for lightweight garage doors(fiberglass, steel, aluminum, door with glass panels
5StraightDoor ArmDoor Bracket PlateDoor BracketSafety Labelsand Literature"C" Wrap (2)2 -Conductor Bell WireWhite & White/RedCurved Door
6ASSEMBLY STEP 1Attach the Rail to the Motor UnitTo avoid installation difficulties, do not run thegarage door opener until instructed to do so.• Plac
7ASSEMBLY STEP 3Tighten the Chain• Spin the inner nut and lock washer down thethreaded shaft, away from the trolley.• To tighten the chain, turn outer
8INSTALLATION STEP 1Determine the Header BracketLocation1. Close the door and mark the inside verticalcenterline of the garage door.2. Extend the line
9INSTALLATION STEP 2Install the Header BracketYou can attach the header bracket either to the wallabove the garage door, or to the ceiling. Follow the
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