Instruction/ maintenance manual of the product 1265-267 1/2 HP Chamberlain
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The Chamberlain Group, Inc. A DUCHOSSOIS ENTERPRISE 845 Larch Avenue Elmhurst, Illinois 60126-1 196 www .chamberlaingroup.com GARAGE DOOR OPENER Models • 1265 • 1265-267 1/2 HP For Residential Use.
2 Introduction Pages 2-5 Safety symbol and signal word review ........................2 Preparing your garage door ........................................3 T ools needed ...............................................................3 Planning ......
3 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" .
Safety Reversing Sensor Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, steel, aluminum, door with glass panels, etc.). See page 20 for details. FINISHED CEILING Support bracket & fastening hardware is required.
5 Straight Door Arm Section Curved Door Arm Section Safety Labels and Literature Header Bracket UP CEILING MOUNT ONLY Sprocket Cover 2 Conductor Bell Wire White & White/Red Light Lens (2) Remote C.
6 ASSEMBL Y STEP 1 Attach the T -Rail to the Motor Unit T o avoid installation difficulties, do not run the garage door opener until instructed to do so. • Remove the two washered screws mounted in top of motor unit. • Position T -rail at a 45˚ angle to opener so one hole in T -rail and motor unit line up.
7 ASSEMBL Y STEP 3 Tighten the Chain • Spin the inner nut and lock washer down the threaded shaft, away from the trolley . • T o tighten the chain, turn outer nut in the direction shown.
8 INST ALLA TION STEP 1 Determine the Header Bracket Location Installation procedures vary according to garage door types. Follow the instructions which apply to your door . SECTIONAL DOOR AND ONE-PIECE DOOR WITH TRACK 1. Close the door and mark the inside vertical centerline of the garage door .
9 Header Wall Vertical Centerline Vertical Centerline of Garage Door 2x4 Unfinished Ceiling 2x4 OPTIONAL CEILING MOUNT FOR HEADER BRACKET Structural Supports ONE-PIECE DOOR WITHOUT TRACK 1. Close the door and mark the inside vertical centerline of your garage door .
10 INST ALLA TION STEP 2 Install the Header Bracket Y ou can attach the header bracket either to the wall above the garage door , or to the ceiling. Follow the instructions which will work best for your particular requirements. Do not install the header bracket over drywall.
Clevis Pin 5/16"x2-3/4" Ring Fastener 11 INST ALLA TION STEP 3 Attach the T -Rail to the Header Bracket • Position the opener on the garage floor below the header bracket. Use packing material as a protective base. NOTE: If the door spring is in the way you’ll need help.
12 ONE-PIECE DOOR WITHOUT TRACK • With the door fully open and parallel to the floor , measure the distance from the floor to the top of the door . • Using a stepladder as a support, raise the top of the opener to this height. • The top of the door should be level with the top of the motor unit.
13 INST ALLA TION STEP 5 Hang the Opener T wo representative installations are shown. Y ours may be different. Hanging brackets should be angled (Figure 1) to provide rigid support. On finished ceilings (Figure 2), attach a sturdy metal bracket to structural supports before installing the opener .
2 1 RED WHT Figure 4 REMOVE COVER 14 INST ALLA TION STEP 6 Install the Door Control Locate door control within sight of the door at a minimum height of 5 feet where small children cannot reach, and away from moving parts of the door and door hardware.
15 INST ALLA TION STEP 7 Install the Lights and Lens INST ALL THE LIGHTS • Install a 75 watt maximum light bulb in each socket. The lights will turn ON and remain lit for approximately 4-1/2 minutes when power is connected. Then the lights will turn OFF .
16 INST ALLA TION STEP 9 Electrical Requirements T o avoid installation difficulties, do not run the opener at this time. T o reduce the risk of electric shock, your garage door opener has a grounding type plug with a third grounding pin. This plug will only fit into a grounding type outlet.
17 Invisible Light Beam Protection Area Sensor Beam 6" max. above floor Sensor Beam 6" max. above floor Facing the door from inside the garage INST ALLA TION STEP 10 Install The Protector System ® The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction.
18 FLOOR MOUNT (RIGHT SIDE) WALL MOUNT (RIGHT SIDE) DOOR TRACK MOUNT (RIGHT SIDE) Indicator light Lens Lip Sensor Bracket Door T rack Sensor Bracket Extension Bracket (See Accessories) Lens Indicator .
19 1/4"-20x1/2" Carriage bolt Lens Wing nut Figure 4 MOUNTING AND WIRING THE SAFETY SENSORS • Slide a 1/4"-20x1/2" carriage bolt head into the slot on each sensor . Use wing nuts to fasten sensors to brackets, with lenses pointing toward each other across the door .
20 T o prevent damage to garage door , reinforce inside of door with angle iron both vertically and horizontally . INST ALLA TION STEP 11 Fasten the Door Bracket Follow instructions which apply to your door type as illustrated below or on the following page.
21 ONE-PIECE DOORS Please read and comply with the warnings and reinforcement instructions on the previous page. They apply to one-piece doors also. • Center the door bracket on the top of the door , in line with the header bracket as shown. Mark either the left and right, or the top and bottom holes.
22 INST ALLA TION STEP 12 Connect Door Arm to T rolley Follow instructions which apply to your door type as illustrated below and on the following page. SECTIONAL DOORS ONL Y • Make sure garage door is fully closed. Pull the emergency release handle to disconnect the outer trolley from the inner trolley .
ALL ONE-PIECE DOORS 1. Assemble the door arm: • Fasten the straight and curved door arm sections together to the longest possible length (with a 2 or 3 hole overlap). • With the door closed, connect the straight door arm section to the door bracket with the 5/16"x1-1/4" clevis pin.
24 ADJUSTMENT STEP 1 Adjust the UP and DOWN T ravel Limits Limit adjustment settings regulate the points at which the door will stop when moving up or down. T o operate the opener , press the Door Control push bar . Run the opener through a complete travel cycle.
ADJUSTMENT STEP 2 Adjust the Force Force adjustment controls are located on the back panel of the motor unit. Force adjustment settings regulate the amount of power required to open and close the door . If the forces are set too light, door travel may be interrupted by nuisance reversals in the down direction and stops in the up direction.
Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSL Y INJURED or KILLED by a closing garage door . • Safety reversal system MUST be tested ever y month. • If one control (for ce or travel limits) is adjusted, the other control may also need adjustment.
OPERA TION 27 IMPORT ANT SAFETY INSTRUCTIONS 1. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS. 2. AL WA YS keep remote controls out of reach of children. NEVER permit children to operate or play with garage door control push buttons or remote controls.
B) T o operate one door using all three buttons on the hand-held remote: Y ou may program the remote to open the door with the large button, close it with the middle button, and stop the door ’s movement with the third button. NOTE: If remote is already programmed, you must first erase all codes.
29 Care of Y our Opener LIMIT AND FORCE ADJUSTMENTS: Weather conditions may cause some minor changes in door operation requiring some readjustments, particularly during the first year of operation. Pages 24 and 25 refer to the limit and force adjustments.
30 Having 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 wire from the door control terminals and operate from the remote only .
*3-Channel Remotes If supplied with your garage door opener , the large button is factory programmed to operate it. Additional buttons on any Security ✚ 3-channel remote or mini-remote can be programmed to operate other Security ✚ garage door openers.
1. Enter a four digit personal identification number (PIN) of your choice on the keypad. Then press and hold ENTER. 2. While holding the ENTER button, press and hold the LIGHT button on the Multi-Function Door Control.
7 10 11 5 NOTICE UP CEILING MOUNT ONLY 8 6 1 4 3 2 LOCK LIGHT 9 12 1 3 4 5 RAIL GREASE NO. 83A4 6 2 Installation Parts 33 REP AIR P ARTS Rail Assembly Parts KEY P ART NO.
Motor Unit Assembly Parts 34 1 2 10 8 13 14 15 16 19 4 5 3 DN UP Brown Wire (Down) Contact LIMIT SWITCH ASSY. Grey Wire Yellow Wire (Up) Contact Center Limit Contact Drive Gear 7 9 20 16 12 6 7 18 6 11 17 3 KEY P ART NO.
LOCK LIGHT 35 ACCESSORIES 974LM 970LM 982LM 1708LM 97LM 1702LM Outside Quick Release: Required for a garage with NO access door . Enables homeowner to open garage door manually from outside by disengaging trolley . 8 Foot Complete Rail: T o allow an 8 foot door to open fully .
© 2001, The Chamberlain Group, Inc. 1 14A2070J All Rights Reserved Printed in Mexico LIFTMASTER GARAGE DOOR OPENER ONE-YEAR LIMITED W ARRANTY The Chamberlain Group, Inc.
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