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Chamberlain 3265M 1/2 HP - page 1
The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1 196 www .liftmaster .com GARAGE DOOR OPENER Models 3265M 1/2 HP 3265M-267 1/2 HP For Residential Use Only Owner’ s Manual ■ Please read this manual and the enc losed safety materials carefully! ■ Fasten the man ual near the garage door after installation. ■ The door WIL ...
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Chamberlain 3265M 1/2 HP - page 2
2 Introduction 2-5 Safety symbol and signal word review . . . . . . . . . . . . . . . . 2 Preparing your garage door . . . . . . . . . . . . . . . . . . . . . . . . 3 T ools needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Carton inv ...
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Chamberlain 3265M 1/2 HP - page 3
3 To prevent damage to garage door and opener: • ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120V, 60 Hz to avoid malfunction and damage. To prevent possible SERIOUS INJURY or DEATH: • ALWAYS call a trained door systems technician if garage door binds, sticks or is out of balance. An u ...
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Chamberlain 3265M 1/2 HP - page 4
FINISHED CEILING Support bracket & fastening hardware is required. See page 12. Slack in chain tension is normal when garage door is closed. Safety Reversing Sensor Header Wall Access Door Safety Reversing Sensor Gap between floor and bottom of door must not exceed 1/4" (6 mm). Wall- mounted Door Control Motor Unit ONE-PIECE DOOR WITHOUT T ...
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Chamberlain 3265M 1/2 HP - page 5
5 Y our garage door opener is packaged in two cartons which contain the motor unit and all parts illustrated below . Accessories will depend on the model purchased. If anything is missing, carefully check the packing material. Parts may be stuck in the foam. Hardware for installation is also listed below . Carton Inventor y Straight Door Arm Sectio ...
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Chamberlain 3265M 1/2 HP - page 6
6 ASSEMBL Y STEP 1 Attach the Rail to the Motor Unit T o av oid installation difficulties, do not run the gara g e door opener until instructed to do so. • Remove the two washered bolts mounted in top of motor unit. • Position rail at a 45˚ angle to opener so one hole in rail and motor unit line up. • Thread one of the washered bolts part wa ...
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Chamberlain 3265M 1/2 HP - page 7
IMPORTANT INSTALLATION INSTRUCTIONS 7 Lock W asher T o Tighten Outer Nut Inner Nut T rolley T o Tighten Inner Nut Outer Nut INST ALLA TION ASSEMBL Y STEP 3 Tighten the Chain • Spin the inner nut and lock washer down the trolley threaded shaft, away from the trolley . • T o tighten the chain, turn outer nut in the direction shown (Figure 1). • ...
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Chamberlain 3265M 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 . 1. Close the door and mark the inside vertical centerline of the garage door . 2. Extend the line onto the header wall above the door . Y ou can fasten the header bracket withi ...
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Chamberlain 3265M 1/2 HP - page 9
9 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 o ver drywall. If installing into masonry , use concrete anchor s (not pro vided). W ALL ...
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Chamberlain 3265M 1/2 HP - page 10
10 Clevis Pin 5/16"x2-3/4" Ring Fastener INST ALLA TION STEP 3 Attach the Rail to the Header Bracket • Position the opener on the garage floor below the header bracket. Use packing material as a protective base. NO TE: If the door spr ing is in the wa y you will need help . Hav e someone hold the opener securely on a temporary suppor t ...
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Chamberlain 3265M 1/2 HP - page 11
11 ONE-PIECE DOOR WITHOUT TRA CK A 2x4 on its side is convenient for setting an ideal door-to- rail distance. • Remove foam packaging. • Raise the opener onto a stepladder . Y ou will need help at this point if the ladder is not tall enough. • Open the door all the way and place a 2x4 on its side on the top section of the door beneath the rai ...
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Chamberlain 3265M 1/2 HP - page 12
Measure Distance Lag Screws 5/16"-18x1-7/8" Structural Supports Bracket (Not Provided) Lag Screws 5/16"-18x1-7/8" (Not Provided) Bolt 5/16"-18x7/8" Lock W asher 5/16" Nut 5/16"-18 FINISHED CEILING Hidden Support Bolt 5/16"-18x7/8" Lock W asher 5/16" Nut 5/16"-18 Bolt 5/16"-18x7/8" ...
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Chamberlain 3265M 1/2 HP - page 13
13 To prevent possible SERIOUS INJURY or DEATH from electrocution: • Be sure power is not connected BEFORE installing door control. • Connect ONLY to 24 VOLT low voltage wires. To prevent possible SERIOUS INJURY or DEATH from a closing garage door: • Install door control within sight of garage door, out of reach of children at a minimum heigh ...
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Chamberlain 3265M 1/2 HP - page 14
14 INST ALLA TION STEP 7 Install the Light • Press the release tabs on both sides of lens. Gently rotate lens back and downward until the lens hinge is in the fully open position. Do not remove the lens. • Install up to a 100 watt maximum light bulb in each socket. Light bulb size should be A19, standard neck only . The light will turn ON and r ...
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Chamberlain 3265M 1/2 HP - page 15
15 INST ALLA TION STEP 9 Electrical Requirements T o av oid 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 does not fit into the outlet you have, conta ...
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Chamberlain 3265M 1/2 HP - page 16
16 Invisible Light Beam Protection Area Safety Reversing Sensor 6" (15 cm) max. above floor Safety Reversing Sensor 6" (15 cm) max. above floor Facing the door fr om inside the garage INST ALLA TION STEP 10 Install The Protector System ® The safety rever sing sensor must be connected and aligned correctly bef ore the garage door opener w ...
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Chamberlain 3265M 1/2 HP - page 17
17 DOOR TRA CK MOUNT (RIGHT SIDE) Indicator Light Lens Lip Sensor Brack et Door T rack FLOOR MOUNT (RIGHT SIDE) W ALL MOUNT (RIGHT SIDE) Indicator Light Sensor Brack et Lens Extension Brack et (See Accessories) Inside Garage W all (Provided with Extension Brack et) (Provided with Extension Brack et) Figure 1 Figure 2 Figure 3 Figure 4 W ALL MOUNT ( ...
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Chamberlain 3265M 1/2 HP - page 18
Invisible Light Beam Protection Area Safety Reversing Sensor Connect Wire to Opener Quick-Connect T erminals Bell Wire Bell Wire Finished Ceiling Quick-Connect T erminals 3. T o insert or release wire, push in tab with screwdriver tip 1. Strip wire 7/16" (1 1 mm) 2. T wist like colored wires together Red Grey White 7/16" (1 1 mm) Safety R ...
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Chamberlain 3265M 1/2 HP - page 19
19 Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE installation of door bracket. Contact your door manufacturer for reinforcement kit. 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 reinfor cement br ...
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Chamberlain 3265M 1/2 HP - page 20
20 Header W all V ertical Centerline of Garage Door Finished Ceiling Optional Placement of Door Bracket Header Bracket Door Bracket 2x4 Support For a door with no exposed framing, or for the optional installation, use lag screws 5/16"x1-1/2" (Not Provided) to fasten door bracket. MET AL DOOR T op of Door (Inside Garage) Door Bracket Optio ...
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Chamberlain 3265M 1/2 HP - page 21
21 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 3265M 1/2 HP - page 22
22 ALL ONE-PIECE DOORS 1. Assemble the door arm, Figure 4: • 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. Adj ...
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Chamberlain 3265M 1/2 HP - page 23
23 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 3265M 1/2 HP - page 24
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 3265M 1/2 HP - page 25
Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. • Safety reversal system MUST be tested every month. • If one control (force or travel limits) is adjusted, the other control may also need adjustment. • After ANY adjustments are made, the ...
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Chamberlain 3265M 1/2 HP - page 26
IMPOR T ANT SAFETY INSTR UCTIONS OPERA TION 26 T o reduce the risk of SEVERE INJUR Y or DEA TH: Using Y our Garage Door Opener Y our Security ✚ ® opener and hand-held remote control have been factory-set to a matching code which changes with each use, randomly accessing over 100 billion new codes. Y our opener will operate with up to eight Secur ...
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Chamberlain 3265M 1/2 HP - page 27
T o Open the Door Manually The door should be fully closed if possible. Pull down on the emergency release handle and lift the door manually . T o reconnect the door to the opener , press the door control push bar . The lock out feature prevents the trolley from reconnecting automatically . Pull the emergency release handle down and back (toward th ...
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Chamberlain 3265M 1/2 HP - page 28
CARE OF YOUR OPENER LIMIT AND FORCE ADJUSTMENTS: Weather conditions may cause some minor changes in door operation requiring some re-adjustments, particularly during the first year of operation. Pages 23 and 24 refer to the limit and force adjustments. Only a screwdriver is required. Follow the instructions carefully . Repeat the safety re verse te ...
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Chamberlain 3265M 1/2 HP - page 29
29 HA VING A PROBLEM? 1. My door will not close and the light b ulbs blink on m y motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. • V erify the safety sensors are properly installed, aligned and free of any obstructions. Refer to Installation Step 10: I ...
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Chamberlain 3265M 1/2 HP - page 30
Bell Wire Safety Reversing Sensor Diagnostics Located On Motor Unit LED or Diagnostic LED “Learn” Button 30 Installed Safety Reversing Sensor Y our garage door opener is programmed with self-diagnostic capabilities. The “Learn” b utton/diagnostic LED will flash a number of times then pause signifying it has f ound a potential issue. Consult ...
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Chamberlain 3265M 1/2 HP - page 31
*3-Button Remotes If provided with your garage door opener , the large button is factory programmed to operate it. Additional buttons on any Security ✚ ® 3-Button remote or compact remote can be programmed to operate other Security ✚ ® garage door openers. T o Erase All Codes Fr om Motor Unit Memory T o deactivate any unwanted remote, first e ...
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Chamberlain 3265M 1/2 HP - page 32
L O C K LI GH T 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 (al ...
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Chamberlain 3265M 1/2 HP - page 33
1 3 4 5 6 2 33 REP AIR P ARTS Rail Assembly Parts KEY P ART NO . NO . DESCRIPTION 1 4A1008 Master link kit 2 41A4813 Chain pulley bracket 3 41A3489 Complete trolley assembly 4 1707LM One-piece rail - 7' (2.1 m) 1708LM One-piece rail - 8' (2.4 m) 1710LM One-piece rail - 10' (3 m) 5 41D3484 Full chain assembly 6 83A1 1-2 Rail grease 7 ...
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Chamberlain 3265M 1/2 HP - page 34
Motor Unit Assembly Parts 34 2 10 8 13 14 15 5 19 3 9 4 16 12 7 18 11 17 6 6 7 DN UP Brown Wire (Down) Contact LIMIT SWITCH ASSEMBL Y Grey Wire Y ellow Wire (Up) Contact Center Limit Contact Drive Gear 1 KEY P ART NO . NO. DESCRIPTION 1 31D380 Sprocket cover 2 41C4220A Gear and sprocket assembly Complete with: Spring washer , thrust washer , retain ...
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Chamberlain 3265M 1/2 HP - page 35
35 ACCESSORIES 374LM 370LM 395LM 41A5281 1702LM Outside Quick Release: Required for a garage with NO access door . Enables homeowner to open garage door manually from outside by disengaging trolley . Remote Light Control: Enables homeowner to turn on a lamp, television or other appliance from their car with their garage door opener remote or from a ...
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Chamberlain 3265M 1/2 HP - page 36
© 2008, The Chamberlain Group, Inc. 1 14A3586B All Rights Reserved LIFTMASTER ® SER VICE IS ON CALL OUR LARGE SER VICE ORGANIZA TION SP ANS AMERICA INST ALLA TION AND SER VICE INFORMA TION IS AS NEAR AS Y OUR TELEPHONE. SIMPL Y DIAL OUR TOLL FREE NUMBER: 1-800-528-9131 www .liftmaster .com For prof essional installation, parts and service, contac ...
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