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Chamberlain 1265-267 1/2 HP - page 1
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 Only Complies with UL 325 regulations effective January 1, 1993 ® Owner’s Manual ■ Please read this manual and the enclosed safety materials car ...
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Chamberlain 1265-267 1/2 HP - page 2
2 Introduction Pages 2-5 Safety symbol and signal word review ........................2 Preparing your garage door ........................................3 T ools needed ...............................................................3 Planning .....................................................................4 Carton inventory ................. ...
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Chamberlain 1265-267 1/2 HP - page 3
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" Drill Bits Carpenter's Level T o prevent damage to garage door and opener: • AL W A YS disable locks before installing and operating the opener ...
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Chamberlain 1265-267 1/2 HP - page 4
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. See page 13. — — — — — — — — Door Center Header Wall Safety Reversing Sensor ...
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Chamberlain 1265-267 1/2 HP - page 5
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 Control Transmitter Visor Clip Door Bracket SECURITY ✚ 3-Channel Remote Control Model 1265 (1) Model 1265-267 (2) SECURITY ✚ Keyless Entry Model 12 ...
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Chamberlain 1265-267 1/2 HP - page 6
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. • Thread one of the washered screws ...
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Chamberlain 1265-267 1/2 HP - page 7
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. As you turn the nut, keep the chain from twisting. • When the chain is approximately 1/2" above the base of the T -rail at its midpoint, re-tighten the ...
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Chamberlain 1265-267 1/2 HP - page 8
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 . 2. Extend the line onto the header wall above the do ...
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Chamberlain 1265-267 1/2 HP - page 9
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 . Extend the line onto the header wall above door , as shown. If headroom clearance i ...
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Chamberlain 1265-267 1/2 HP - page 10
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. If installing into masonry , use concrete anchors (not provided). W ALL HE ...
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Chamberlain 1265-267 1/2 HP - page 11
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. Have someone hold the opener securely on a temporary support to ...
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Chamberlain 1265-267 1/2 HP - page 12
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. Do not position the opener more than 2" ab ...
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Chamberlain 1265-267 1/2 HP - page 13
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 . This bracket and fastening hardware are not provide ...
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Chamberlain 1265-267 1/2 HP - page 14
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. If installing into drywall (Fig. 1), drill 5/32" holes and use anchors provided. For pre-wire ...
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Chamberlain 1265-267 1/2 HP - page 15
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 . • If the bulbs burn out prematurely due to vibration, replace with a Garage Door Opener bu ...
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Chamberlain 1265-267 1/2 HP - page 16
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. If the plug doesn't fit into the outlet you have, co ...
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Chamberlain 1265-267 1/2 HP - page 17
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. IMPORT ANT ...
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Chamberlain 1265-267 1/2 HP - page 18
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 light Attach with concrete anchors (not provided) Inside Garage Wall Indicator light Sensor Bracket Lens Extension Bracket (See Accessories) Inside Ga ...
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Chamberlain 1265-267 1/2 HP - page 19
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 . Be sure the lens is not obstructed by a bracket extension. Se ...
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Chamberlain 1265-267 1/2 HP - page 20
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. A horizontal reinforcement brace should be long enough to be secured to two or three vertic ...
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Chamberlain 1265-267 1/2 HP - page 21
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. • Metal Doors: Drill 3/16" pilot holes ...
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Chamberlain 1265-267 1/2 HP - page 22
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 . Slide the outer trolley back (away from t ...
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Chamberlain 1265-267 1/2 HP - page 23
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. • Secure with a ring fastener . 2. Adjustment proce ...
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Chamberlain 1265-267 1/2 HP - page 24
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. • Does the door open and close completely? • Does the door stay closed and not rev ...
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Chamberlain 1265-267 1/2 HP - page 25
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. Weather ...
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Chamberlain 1265-267 1/2 HP - page 26
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. • After ANY adjustments are made, ...
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Chamberlain 1265-267 1/2 HP - page 27
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. 3. ONL Y activate garage door when it can be seen clearly , it is properly adjusted, and there ar ...
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Chamberlain 1265-267 1/2 HP - page 28
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. See Programming. 1. With the door closed, press an ...
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Chamberlain 1265-267 1/2 HP - page 29
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. Only a screwdriver is required. Follow the instructions carefully . Repeat the safety reverse ...
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Chamberlain 1265-267 1/2 HP - page 30
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 . If this solves the problem, the door control is faulty (replace), or there is an intermittent short on the wire between ...
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Chamberlain 1265-267 1/2 HP - page 31
*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. T o Erase All Codes From Motor Unit Memory T o deactivate any unwanted remote, first erase all ...
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Chamberlain 1265-267 1/2 HP - page 32
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. 3. Continue holding the ENTER and LIGHT buttons while you press the push bar on the Multi-Function Door Control (all three buttons ...
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Chamberlain 1265-267 1/2 HP - page 33
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. NO. DESCRIPTION 1 1A995 Master link kit 2 41A4813 Chain pulley bracket 3 41A3489 Complete trolley assembly 4 183B99 One-piece T -rail 5 41D3484 Full chain assembly 6 83A4 Rail gre ...
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Chamberlain 1265-267 1/2 HP - page 34
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. NO. DESCRIPTION 1 31D380 Sprocket cover 2 41C4220A Gear and sprocket assembly Complete with: Spring washer , Thrust washer , Reta ...
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Chamberlain 1265-267 1/2 HP - page 35
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 . Plug-In Light Control: Enables homeowner to turn on a lamp, television o ...
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Chamberlain 1265-267 1/2 HP - page 36
© 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., (“Seller”) warrants, to the first retail purchaser of this product, for the residence in which this product is originally installed, that it will be free from any defect in m ...
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