Page 2 - WARNING
Start by reviewing these important safety alert symbols 2 CONTENTS PAGE A review of safety alert symbols ...............................2 You'll need tools ........................................................3 Safety information regarding garage door locks and ropes ................................
Page 3 - • Lift the door about halfway as shown. Release the
Pliers Wire Cutters Claw Hammer Hack Saw Screwdriver Adjustable End Wrench 1/2" and 7/16" Sockets and Wrench Drill Tape Measure 2 1 Stepladder Pencil 3/16", 5/16" and 5/32" Drill Bits Carpenter's Level You'll Need Tools During assembly, installation and adjustment of the opener, ...
Page 5 - Carton Inventory; INSTALLATION HARDWARE
5 Straight Door Arm Section Curved Door Arm Section Safety Labels and Literature Header Bracket UP CEILING MOUNT ONLY 2-Conductor Bell Wire White & White/Red Remote Control Transmitter Visor Clip Light Lens (2) Belt Cap Retainer Door Bracket One-Piece T-rail Styrofoam Belt Pulley Bracket Belt Tr...
Page 6 - ASSEMBLY STEP 1; Attach the T-Rail To the Opener; ASSEMBLY STEP 2; Set the Belt Tension; Do not use any tools.; CAUTION; Figure A
ASSEMBLY STEP 1 Attach the T-Rail To the Opener To fasten rail, use only those screws mountedin the top of the opener. Any other screws willcause serious damage to the opener. 6 • Remove the two washered screws mounted in top of opener. • Align T-rail and styrofoam over opener sprocket. • Cut tape f...
Page 7 - Assembly Step 3; Attach the Belt Cap Retainer; IMPORTANT INSTALLATION INSTRUCTIONS; READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS.; • Position the belt cap retainer over the
Assembly Step 3 Attach the Belt Cap Retainer 7 IMPORTANT INSTALLATION INSTRUCTIONS To reduce the risk of severe injury or death to persons: 1. READ AND FOLLOW ALL INSTALLATION INSTRUCTIONS. 2. Install only on a properly balanced and lubricated garage door. An improperly balanced door may not reverse...
Page 8 - • Open your door to the highest; SECTIONAL Doors and; • Close the door and mark the inside; Installation Section: Pages 8 – 23; Determine Header Bracket Location
• Open your door to the highest point of travel as shown. Drawan intersecting horizontal lineon the header wall 2" abovethe high point. This height willprovide travel clearance for thetop edge of the door. Header Wall Ceiling Track Highest Point of Travel Door 2" 8 Proceed to Step 2, page 10...
Page 9 - • Close the door and mark the; EXAMPLE; ONE-PIECE Door Without Track; • Open your door to the highest point of travel as; One-piece door without track
9 Header Wall Vertical Centerline Vertical Centerline of Garage Door 2x4 Unfinished Ceiling Structural Supports 2x4 OPTIONAL CEILING MOUNT • Close the door and mark the inside vertical centerline ofyour garage door. Extend theline onto the header wallabove door. If headroom clearance isminimal, you ...
Page 10 - Fasten the Header Bracket to the Wall; • Center the bracket on the vertical guideline with; Fasten the Header Bracket to the Ceiling; Installation Step 2; I nstall the Header Bracket; Hardware Shown Actual Size
UP Lag Screws 5/16"-9x1-5/8" Garage Door Vertical Center Line Header Wall Finished Ceiling Header Bracket 6" Maximum Vertical Center Line Door Spring Lag Screws 5/16"-9x1-5/8" Highest Point of Travel (of Garage Door) Vertical Center Line Header Wall Garage Door UP CEILING MOUNT O...
Page 11 - Installation Step 3; Attach the T-rail to the Header Bracket
Header Bracket Belt Pulley Bracket Temporary Support Header Wall Garage Door , Liftmaster Synchro DriveTee Rail to Header Bracket5/16/92 T-rail Clevis Pin 5/16"x2-3/4 " Ring Fastener Header Bracket Belt Pulley Bracket T-rail • Position the opener on the garage floor below the header bracket....
Page 12 - Installation Step 4; Position the Opener; • With the door fully open and parallel to the floor,; • Raise the opener onto a stepladder.
Installation Step 4 Position the Opener Follow instructions which apply to your door typeas illustrated. T o p r e v e n t d a m a g e t o s t e e l , a l u m i n u m ,fiberglass or glass panel doors, do not rest theopener on the door without using a 2x4. SECTIONAL Door & ONE-PIECE Door with Tra...
Page 13 - Installation Step 5; Hang the Opener; • Measure the distance from; Figure 1
Installation Step 5 Hang the Opener Two representative installations are shown.Yours may be different. Hanging brackets shouldbe angled, Figure 1, to provide rigid support. Onfinished ceilings, Figure 2, attach a sturdy metalbracket to structural supports before installing theopener. The bracket and...
Page 14 - Outside Keylock Accessory Connections; open position but will not return to the close; Installation Step 6; Install the Door Control Panel; Hardware Shown
Outside Keylock Accessory Connections To opener terminal screws: white to 2; white/red to 1 WARNING DO NOT CONNECT TO LIVE ELECTRICAL WIRING.C O N N E C T O N L Y T O 2 4 V O L T L O W V O L T A G EWIRES. CONNECTION TO LIVE WIRES OR HIGHERVOLTAGE MAY CAUSE SERIOUS INJURY FROMSHOCK, BURN OR ELECTROCU...
Page 15 - after Adjustment Step 4 on page 26.; Installation Step 7; Install the Lights and the Lenses; Installation Step 8; The rope knot could become
Watt ximum ht Bulb Lens Guide ens ab Lens Slot Lens Tab 75 Watt Maximum Light Bulb • Install a 75 watt maximum light bulb in the socket. The light will turn ON and remain lit forapproximately 4-1/2 minutes when power isconnected. Then the light will turn OFF. • If the bulbs burn out prematurely due ...
Page 16 - only fit into a grounding; Installation Step 9; Electrical Requirements; • To make a permanent connection through the
To reduce the risk of electric shock, your garagedoor opener has a grounding type plug with a thirdgrounding pin. This plug will only fit into a grounding type outlet. If the plug doesn't fit into the outlet you have,contact a qualified electrician to install the properoutlet. To avoid installation ...
Page 17 - : Facing the door from inside the garage; The Protector; The safety reversing sensor
Without a properly working safety reversingsensor, persons (particularly children) could beinjured or killed by a closing garage door. Readand follow all instructions. To protect small children, install the safetyreversing sensor so that the beam will be nohigher than 4"-6" above the garage ...
Page 18 - Installation Step 10; Install the Safety Reversing Sensor
Installation Step 10 Install the Safety Reversing Sensor 18 FLOOR MOUNT (Right Side) WALL MOUNT (Right Side) DOOR TRACK MOUNT (Right Side) Indicator light Lens Lip Sensor Bracket Door Track Sensor Bracket Optional Extension Bracket (See Accessories) Lens Indicator light Attach with concrete anchors ...
Page 19 - Figure 6; Figure 5
Invisible Light Beam Protection Area Sensor Sensor Connect Wire to Opener Terminals Bell Wire Bell Wire Finished Ceiling OPENER TERMINAL SCREWS Sensor Connections Door Control Connections (dotted line) 1 2 3 19 Figure 6 Wiring the Safety Sensors 1/4"-20x1/2"Carriage bolt Lens Wing nut Figure...
Page 20 - Installation Step 11; Fasten Door Bracket; • Center the door bracket on the previously marked; Note the correct UP placement as; • Position the bracket on the face of the door within; SECTIONAL Door Installation Procedure
Installation Step 11 Fasten Door Bracket Follow instructions which apply to your door typeas illustrated below or on page 21. To p r e v e n t d a m a g e t o s t e e l , a l u m i n u m ,f i b e r g l a s s o r g l a s s p a n e l d o o r s , a l w a y sreinforce the inside of the door both vertica...
Page 21 - All ONE-PIECE Door Installation Procedure; • Center the bracket on the inside face of the door,
Door Bracket Inside Edge of Door or Reinforcement Board Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, aluminum, steel, door with glass panel, etc.). (Not Provided) Header Wall Vertical Centerline of Garage Door — Finished Ceiling — Header Bracket 2x4 Suppo...
Page 22 - Installation Step 12; • Bring arm sections together. Find two pairs of holes; above holes in straight; • Fasten straight door arm section to outer trolley; • Fasten curved section to the door bracket in the
Installation Step 12 Connect Door Arm to Trolley Follow instructions which apply to your door typeas illustrated below and on page 23. Make sure garage door is fully closed. Pull the manual release handle to disconnect the outer trolleyfrom the inner trolley. Slide the outer trolley back (away from ...
Page 23 - Can/DoorArmToTrolley 1 pc; Adjustment Procedures for One-Piece Doors
Nuts 5/16"-18 Lock Washers 5/16" Ring Fastener Straight Door Arm Screws 5/16"-18x7/8" Door Bracket 5/16"x1-1/4" Clevis Pin Curved Door Arm Fully Open Trolley Door Arm Connector Hole Door Arm Closed Door Open Door Door with Backward Slant Door Arm Connector Hole Fully Closed T...
Page 24 - Adjustment Step 1; Adjust the UP and DOWN Limits; Adjustment Section: Pages 24 – 26
Adjustment Step 1 Adjust the UP and DOWN Limits Do not make any limit adjustments until thesafety reversing sensors are completelyinstalled. 24 Limit adjustment settings regulate the points atwhich the door will stop when moving up or down. The door will stop in the up direction if anything interfer...
Page 25 - Adjustment Step 2; Adjust the Force
Adjustment Step 2 Adjust the Force Too much force on the door will interfere witht h e p r o p e r o p e r a t i o n o f t h e s a f e t y r e v e r s esystem. The door might not reverse properly when required and could seriously injure orkill someone under it. Do not increase theforce beyond the mi...
Page 26 - Adjustment Step 4; Test the Safety Reverse System; The door; Important safety check:; Repeat Adjustment Steps 1, 2 and 4 after:; Adjustment Step 3; Test the Protector System
Adjustment Step 4 Test the Safety Reverse System Test: • With the door fully open, place a 2x4 laid flat on the floor, centered under the garage door. • Operate the door in the down direction. The door must reverse on striking the obstruction. Adjustment: If the door stops on the obstruction, it is ...
Page 27 - Care of Your Opener; IMPORTANT SAFETY INSTRUCTIONS; Maintenance Schedule
The remote control transmitter: The opener must learn the code of any new remotecontrol. Page 29 explains how to program yourreceiver and how to erase all codes if required. Selfservice of your radio controls and remote controls isnot recommended. If service is needed, call the toll-free number list...
Page 28 - Operation of Your Opener; only when the door is fully closed.
28 Operation of Your Opener Weak or broken springs could allow an opendoor to fall (either rapidly or unexpectedly),resulting in serious injury, death or propertydamage. If possible, use the manual release ropeand handle only when the door is fully closed. WARNING Activate the opener with any of the...
Page 29 - Figure 2; Receiver and Remote Control Programming; To Add A Remote Control
SECURITY ✚ Garage Door Opener RIGHT PANEL "Smart" (learn) Button Indicator Light KG KG 1 3 9 7 5 1 3 9 7 5 1 2 3 KG KG 1 3 9 7 5 1 3 9 7 5 1 2 3 Code programming instructions are also located on the opener panel. Figure 2 Select a push button Model 973LM SECURITY ✚ 3-Channel Remote Control F...
Page 30 - Be sure that all remote control push buttons are off.; Repeat the safety reverse test after the adjustment is complete.; or metal garage siding.
1. Does the opener have electric power? Plug a lamp into the outlet. If it doesn't light, check the fuse box or the circuit breaker. (Some outlets are controlled by a wall switch.) 2. Have you disabled all door locks? Review installation instruction warnings on page 7.3. Is there a build-up of ice o...
Page 31 - Review the force adjustment procedures on page 25.; Do not increase the force to operate the opener.
31 Having a Problem? (continued) Situation Probable Cause & Solution The door reverses forno apparent reasonand opener lightsdon't blink: 1. Is something obstructing the door? Pull the manual release handle. Operate the door manually. If it is unbalanced or binding, call for professional garage ...
Page 32 - Rail Assembly Parts; Repair Parts
7 10 11 5 NOTICE 6 UP CEILING MOUNT ONLY 8 4 3 2 9 12 1 LOCK LIGHT 7 1 4 5 3 6 2 Rail Assembly Parts Installation Parts 32 KEY PART NO. NO. DESCRIPTION 1 1A995 Master link kit 2 41A3588-1 Belt pulley bracket 3 41B3869-1 Complete trolley assembly 4 183B99 One-piece T-rail 5 41A3589-12 Full belt assem...
Page 33 - Opener Assembly Parts
Repair Parts Opener Assembly Parts 2 12 10 15 4 3 DN UP Brown Wire (Down) Contact LIMIT SWITCH ASSY. Grey Wire Yellow Wire (Up) Contact Center Limit Contact Drive Gear 11 5 6 7 9 8 9 8 20 14 13 16 1 3 18 19 17 5 KEY PART NO. NO. DESCRIPTION 1 41A4371 Belt cap retainer 2 41A4885-2 Gear and sprocket a...
Page 34 - Accessories Available For Your Opener; Choose a 4-digit code using numbers from 0 to 9; To Add the Keyless Entry
LOCK LIGHT 34 Accessories Available For Your Opener Model 59LMC Model 974LMC Model 1702LMC SECURITY ✚ 3-Channel Remote Control: Includes visor clip. SECURITY ✚ 4-Channel Remote Control: Includes visor clip. SECURITY ✚ 3-Channel Mini Remote Control: With key ring and Velco fasteningstrip. Extension B...
Page 35 - Index; Garage Door
Index Access Door/Outside Quick Release Accessory..........................................................................................4, 34 Electrical Safety Warnings....................................................................................................................2, 7, 16, 27 ...
Page 36 - IS ON CALL; LIFT-MASTER GARAGE DOOR OPENER FIVE-YEAR LIMITED WARRANTY
© 2000, The Chamberlain Group, Inc. 114A2478 All Rights Reserved Printed in Mexico LIFT-MASTER SERVICE IS ON CALL OUR LARGE SERVICE ORGANIZATION SPANS AMERICA AND CANADA INSTALLATION AND SERVICE INFORMATION IS AS NEAR AS YOUR TELEPHONE SIX DAYS A WEEK. SIMPLY DIAL OUR TOLL FREE NUMBER: 1-800-654-473...
