Instruction/ maintenance manual of the product 2575 Chamberlain
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The Chamberlain Group, Inc. 845 Larch A ven ue Elmhurst, Illinois 60126-1196 www .liftmaster .com GARAGE DOOR OPENER Model 2575 3/4 HP For Residential Use Only ® Owner’s Manual ■ Please read this manual and the enc losed safety materials carefull y! ■ F asten the man ual near the garage door after installation.
2 Introduction Pages 2-5 Saf ety symbol and signal word re view ........................2 Preparing your garage door ........................................3 T ools needed ...............................................................3 Planning ....
3 To prevent damage to garage door and opener: • AL WA YS disable locks before installing and operating the opener . • ONL Y operate garage door opener at 120V , 60 Hz to avoid malfunction and damage.
Safety Reversing Sensor Support bracket & fastening hardware is required. See page 13. — — — — — — — — Door Center Header Wall FINISHED CEILING Torsion Spring Extension Spring OR S.
5 Straight Doo r Arm Section Curved Door Arm Section Safety Labels and Literature Header Bracket U P C E IL IN G MO U N T O N L Y 2 Conductor Bell Wire White & White/Red Light Lens (2) Remote Cont.
6 ASSEMBL Y STEP 1 Attach the T -Rail to the Motor Unit To av oid installation difficulties, do not run the garage door opener until instructed to do so. •R emov e the bolt and lock nut from the top of the motor unit. • Place rail onto the bolt mounted on the motor unit and align the back hole with the hole in the top of the unit.
7 ASSEMBL Y STEP 3 Tighten the Chain • Spin the inner nut and loc k washer down the threaded shaft, aw a y from the trolley . •T o tighten the chain, tur n outer nut in the direction shown.
8 INST ALLA TION STEP 1 Determine the Header Bracket Location Installation procedures va r y according to garage door types. Follo w the instructions which apply to your door . SECTIONAL DOOR AND ONE-PIECE DOOR WITH TRA CK 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 TRA CK 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 brack et either to the wall abov e the garage door , or to the ceiling. F ollow the instructions which will work best for y our par ticular requirements. Do not install the header brac ket o ver 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 .
KG 1 3 9 7 5 KG 1 3 9 7 5 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. The installation surface must be smooth and flat.
15 INST ALLA TION STEP 7 Install the Lights • 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.
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 Track Sensor Bracket Extension Bracket (See Accessories) Lens Indicator l.
19 Carriage bolt 1/4"-20x1/2" 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 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 vertical supports. A vertical reinforcement brace should cover the height of the top panel.
21 Header Wall Vertical 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 5/16"x1-1/2" lag screws (Not provided) to fasten door bracket.
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 .
23 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.
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 right side 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 (force or travel limits) is adjusted, the other control may also need adjustment.
OPERA TION 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 Security ✚ remote controls and one Security ✚ Keyless Entry System.
28 Additional feature when used with the 3-function hand-held remote T o control the opener lights: In addition to operating the door , you may program the remote to operate the lights. 1. With the door closed, press and hold a small remote button that you want to control the light.
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 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 provided 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 Motion Detecting Door Control.
7 10 11 5 N O T IC E U P C E I L I N G M O U N T O N L Y 8 6 1 4 3 2 9 12 L O C K LIG H T 1 3 4 5 6 2 Installation Parts 33 REP AIR P ARTS Rail Assembly Parts KEY P ART NO.
Motor Unit Assembly Parts 34 DN UP Brown Wire (Down) Contact LIMIT SWITCH ASSY. Grey Wire Yellow Wire (Up) Contact Center Limit Contact Drive Gear 2 4 3 1 15 19 8A 17 5 18 9 10 16 14 13 12 6 6 11 8B 8C 7 7 KEY P ART NO.
35 L O C K L IG H T C L O S E D O P E N ACCESSORIES 974LM 970LM 995LM 1708LM 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 . 8 Foot Complete Rail: T o allow an 8 foot door to open fully .
LIFTMASTER GARAGE DOOR OPENER FIVE-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 i.
An important point after buying a device Chamberlain 2575 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Chamberlain 2575 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Chamberlain 2575 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Chamberlain 2575 you will learn all the available features of the product, as well as information on its operation. The information that you get Chamberlain 2575 will certainly help you make a decision on the purchase.
If you already are a holder of Chamberlain 2575, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Chamberlain 2575.
However, one of the most important roles played by the user manual is to help in solving problems with Chamberlain 2575. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Chamberlain 2575 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
