Chamberlain LiftMaster 1345 Owner'S Manual Download Page 1

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The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com

GARAGE DOOR OPENER

Model Series 1300

For Residential Use Only

Owner’s Manual

■

Please read this manual and the enclosed safety materials carefully!

■

Fasten the manual near the garage door after installation.

■

The door WILL NOT CLOSE unless the Protector System

is connected and

properly aligned.

■

Periodic checks of the opener are required to ensure safe operation.

■

The model number label is located on the front panel of your opener.

Model 1356 - 1/2HP
Model 1346 - 1/3HP

Model 1355 - 1/2HP
Model 1345 - 1/3HP

Summary of Contents for LiftMaster 1345

Page 1: ...and the enclosed safety materials carefully Fasten the manual near the garage door after installation The door WILL NOT CLOSE unless the Protector System is connected and properly aligned Periodic che...

Page 2: ...8 11 Fasten the rail to the motor unit 8 9 Install the chain and the sprocket cover 8 Install the chain spreader and the chain 10 Tighten the chain 11 Installation 11 27 Installation safety instructi...

Page 3: ...your garage door Before you begin Disable locks Remove any ropes connected to garage door Complete the following test to make sure your garage door is balanced and is not sticking or binding 1 Lift t...

Page 4: ...ing in your garage If so a support bracket and additional fastening hardware may be required Installation Step 10 Depending upon garage construction extension brackets or wood blocks may be needed to...

Page 5: ...Header Wall Planning Continued ONE PIECE DOOR INSTALLATIONS Generally a one piece door does not require reinforcement If your door is lightweight refer to the information relating to sectional doors i...

Page 6: ...ote Control 1 2 Safety Reversing Sensors 1 Sending Eye and 1 Receiving Eye with 2 Conductor White White Black Bell Wire attached Safety Sensor Bracket 2 Carton Inventory Your garage door opener is pac...

Page 7: ...in 5 16 x2 3 4 1 NOTICE Handle Drywall Anchors 2 Clevis Pin 5 16 x1 1 Clevis Pin 5 16 x1 1 4 1 Hex Bolt 5 16 18x7 8 4 Rope Ring Fastener 3 Lock Washer 5 16 4 Lag Screw 5 16 9 x1 5 8 2 Wing Nut 1 4 20...

Page 8: ...EMOVE STYROFOAM Washered Bolt 5 16 18x1 2 Styrofoam Rail Hole USE ONLY THIS TYPE AND SIZE BOLT Washered Bolt 5 16 18x1 2 Motor Unit Sprocket USE ONLY THIS TYPE AND SIZE BOLT Sprocket Cover Mounting Pl...

Page 9: ...the rail with the two washered bolts previously removed Tighten securely Use only these bolts Use of any other bolts will cause serious damage to door opener USE ONLY THIS TYPE AND SIZE BOLT Washered...

Page 10: ...wn Figure 3 Continue dispensing the chain forward to the trolley Figure 4 Reconnect the trolley to the trolley threaded shaft Proceed to Assembly Step 3 for chain tightening instructions Trolley Troll...

Page 11: ...ll garage door opener ONLY on properly balanced and lubricated garage door An improperly balanced door may not reverse when required and could result in SEVERE INJURY or DEATH 3 All repairs to cables...

Page 12: ...shown Draw an intersecting horizontal line on the header wall 2 5 cm above the high point This height will provide travel clearance for the top edge of the door Proceed to Step 2 page 14 One piece do...

Page 13: ...om the top of the door to the floor Subtract the actual height of the door Add 8 20 cm to the remainder See Example 3 Close the door and draw an intersecting horizontal line on the header wall at the...

Page 14: ...UP CEILING MOUNT ONLY Wall Mounting Holes Optional Wall Mounting Holes The nail hole is for positioning only You must use lag screws to mount the header bracke UP CEILING MOUNT ONLY Door Spring Header...

Page 15: ...ou ll need help Have someone hold the opener securely on a temporary support to allow the rail to clear the spring Position the rail bracket against the header bracket Align the bracket holes and join...

Page 16: ...the opener onto a stepladder You will need help at this point if the ladder is not tall enough Open the door all the way and place a 2x4 laid flat on the top section beneath the rail If the top secti...

Page 17: ...if the bracket is not centered above the door 7 Remove the 2x4 Operate the door manually If the door hits the rail raise the header bracket 8 Grease the top and underside of the rail surface where the...

Page 18: ...two screw terminals on the back of the door control by color white wire to 2 and white red wire to 1 2 Fasten the Lighted Door Control Button securely with 6ABx1 1 2 screws If installing into drywall...

Page 19: ...he hole in the release arm of the outer trolley Adjust rope length so the handle is 6 feet 1 83 m above the floor Secure with an overhand knot NOTE If it is necessary to cut the rope heat seal the cut...

Page 20: ...he black line wire to the screw on the brass terminal the white neutral wire to the screw on the silver terminal and the ground wire to the green ground screw The opener must be grounded Reinstall the...

Page 21: ...ove the floor Either can be installed on the left or right of the door as long as the sun never shines directly into the receiving eye lens The mounting brackets are designed to clip onto the track of...

Page 22: ...p hugging the back edge of the track as shown in Figure 1 If your door track will not support the bracket securely wall installation is recommended Wall installation Figure 2 3 Place the bracket again...

Page 23: ...ding eye wing nut and readjust aiming directly at the receiving eye Lock in place Loosen the receiving eye wing nut and adjust sensor until it receives the sender s beam When the green indicator light...

Page 24: ...cket Drill 3 16 fastening holes Secure the door bracket using the two 1 4 14x5 8 self threading screws Figure 2A Alternately use two 5 16 bolts lock washers and nuts not provided Figure 2B Metal insul...

Page 25: ...INUM STEEL DOORS WITH GLASS PANEL ETC NOT PROVIDED ONE PIECE DOORS Please read and comply with the warnings and reinforcement instructions on the previous page They apply to one piece doors also Cente...

Page 26: ...as far apart as possible to increase door arm rigidity Figure 3 Hole alignment alternative If holes in curved arm are above holes in straight arm disconnect straight arm Cut about 6 from the solid end...

Page 27: ...ashers 5 16 Ring Fastener Straight Arm Bolts 5 16 18x7 8 Door Bracket Clevis Pin 5 16 x1 1 4 Curved Door Arm Press the Door Control push button The trolley will travel to the fully closed position Man...

Page 28: ...ustment Step 2 If the door does not close completely Increase down travel Turn the down limit adjustment screw counterclockwise One turn equals 2 5 cm of travel If door still won t close completely an...

Page 29: ...clockwise Make small adjustments until the door completes a close cycle After each adjustment run the opener through a complete travel cycle Do not increase the force beyond the minimum amount requir...

Page 30: ...the 1 1 2 3 8 cm board remove the obstruction and run the opener through 3 or 4 complete travel cycles to test adjustment IMPORTANT SAFETY CHECK Repeat Adjustment Steps 1 2 and 3 after Each adjustment...

Page 31: ...s restored after interruption when the opener is activated The light will also turn on when someone walks through the open garage door It will turn off automatically after 4 1 2 minutes Bulb size is A...

Page 32: ...ess the push button to open or close the door Press again to reverse the door during the closing cycle or to stop the door while it s opening To prevent possible SERIOUS INJURY or DEATH from a falling...

Page 33: ...ol Is the door control lit If not remove the bell wire from the motor unit terminals Short the red and white terminals by touching both terminals at the same time with a piece of wire If the opener ru...

Page 34: ...adjustments to force or travel limits The need for occasional adjustment of the force and limit settings is normal Weather conditions in particular can affect door travel 11 The door reverses for no a...

Page 35: ...you wish to operate your garage door 3 Release the button when the motor unit lights blink It has learned the code If light bulbs are not installed two clicks will be heard To Add or Reprogram an Add...

Page 36: ...ger open the door It can be used to close the door even after it has expired To set a temporary PIN 1 Press the four buttons for your personal entry PIN not the last temporary PIN then press and hold...

Page 37: ...r 8 41A5047 Door bracket w clevis pin fastener 9 41A5034 Safety sensor kit receiving and sending eyes with 3 9 m 2 conductor bell wire attached 10 178B34 Straight door arm section 11 178B35 Curved doo...

Page 38: ...d panel w all labels 6 175B88 Light socket 7 108D36 2 Lens 8 30B532 Capacitor 1 2HP 30B533 Capacitor 1 3HP 9 12A373 Capacitor bracket 10 41A3150 Terminal block w screws KEY PART NO NO DESCRIPTION 11 4...

Page 39: ...number of hours or entries 78LM 902LM 903LM 2 3 Door Multi Function Wall Control Ideal for homes with up to three garage doors Combine up to three controls into one wall control panel for a neat comp...

Page 40: ...ceipt by Seller are confirmed to be defective and covered by this limited warranty will be repaired or replaced at Seller s sole option at no cost to you and returned pre paid Defective parts will be...

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