Chamberlain 1/2-HP LW3500 User Manual

The Chamberlain Group, Inc.845 Larch AvenueElmhurst, Illinois 60126-1196www.chamberlain.comCONTENTSPreparation ... 1-4Assem

9AssemblySTEP 5 Tighten the belt1. By hand, thread the spring trolley nut on the threaded shaft until it is finger tight against thetrolley. Do not us

10InstallationIMPORTANT INSTALLATION INSTRUCTIONSTo reduce the risk of SEVERE INJURY or DEATH:1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUC

11InstallationSTEP 1 Determine the header bracket locationTo prevent possible SERIOUS INJURY or DEATH:l Header bracket MUST be RIGIDLY fastened to str

12InstallationSTEP 2 Install the header bracketYou can attach the header bracket either to the wall above the garage door, or to the ceiling. Follow t

13InstallationSTEP 3 Attach the rail to the header bracket1. Position the opener on the garage floor below the header bracket. Use packing material as

14InstallationSTEP 5 Hang the garage door openerTo avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY tostructural su

15InstallationSTEP 6 Install the light bulbsTo prevent possible OVERHEATING of the endpanel or light socket:l DO NOT use short neck or specialty light

16InstallationSTEP 8 Install the door bracketFiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFOREinstallation of d

17InstallationSTEP 8 Install the door bracket (continued)OPTION B ONE-PIECE DOORS1. Center the door bracket on the top of the door, in line with the h

18InstallationSTEP 9 Connect the door arm to the trolleyInstallation will vary according to the garage door type. Follow the instructions which apply

1Safety Symbol and Signal Word ReviewThis garage door opener has been designed and tested to offer safe service provided it is installed,operated, mai

19InstallationSTEP 9 Connect the door arm to the trolley (continued)OPTION B ONE-PIECE DOORS1. Assemble the door arm, Figure 1:IMPORTANT: The groove o

20InstallationSTEP 10 Install the door controlTo prevent possible SERIOUS INJURY or DEATH from electrocution:l Be sure power is NOT connected BEFORE i

21InstallationSTEP 11 Wire the door control to the garage door openerHARDWAREInsulated Staple(Not Shown)1. Run the white and red/white wire from the d

22InstallationSTEP 13 Install the Protector System®Be sure power is NOT connected to the garage door opener BEFORE installing the safety reversingsens

23InstallationSTEP 13 Install the Protector System®(continued)OPTION B WALL INSTALLATIONIf additional clearance is needed an extension bracket (not pr

24InstallationSTEP 14 Wire the Safety Reversing SensorsIf your garage already has wires installed for the safety reversing sensors, proceed to page 25

25InstallationSTEP 14 Wire the Safety Reversing Sensors (continued)OPTION B PRE-WIRED INSTALLATION1. Cut the end of the safety reversing sensor wire,

26InstallationSTEP 15 Connect powerTo prevent possible SERIOUS INJURY or DEATH from electrocution or fire:l Be sure power is NOT connected to the open

27InstallationSTEP 16 Aligning the safety reversing sensorsThe door will not close if the sensors have not been installed and aligned correctly.When t

28AdjustmentsSTEP 1 Adjust the UP and DOWN Travel LimitsWithout a properly installed safety reversal system,persons (particularly small children) coul

2Additional Items You May Need:Survey your garage area to see if you will need any of the following items:n (2) 2X4 PIECES OF WOODMay be used to faste

29AdjustmentsSTEP 2 Adjust the ForceWithout a properly installed safety reversal system,persons (particularly small children) could beSERIOUSLY INJURE

30AdjustmentsSTEP 3 Test the Safety Reversal SystemWithout a properly installed safety reversal system,persons (particularly small children) could beS

31IMPORTANT SAFETY INSTRUCTIONSTo reduce the risk of SEVERE INJURY or DEATH:1. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS.2. ALWAYS keep remote con

32OperationUsing your Garage Door OpenerYour Security+®opener and hand-held remote control have been factory-set to a matching code whichchanges with

33OperationTo Open the Door ManuallyTo prevent possible SERIOUS INJURY or DEATH from a falling garage door:l If possible, use emergency release handle

34OperationHaving a Problem?Bell WireSending EyeSafety Reversing Sensor (Amber Indicator Light)Receiving EyeSafety Reversing Sensor (Green Indicator L

35OperationDiagnostic ChartYour garage door opener is programmed with self-diagnostic capabilities. The “Learn” button/diagnostic LED will flash a num

36OperationProgrammingNOTICE: Ifthis Security+®garage door opener is operated with a non-rolling code transmitter, thetechnical measure in the receive

37OperationProgrammingTo Add, Reprogram or Change a Keyless Entry PINNOTE: Your new Keyless Entry must be programmed to operate your garage door opene

38OperationThe Remote Control BatteryTo prevent possible SERIOUS INJURY or DEATH:l NEVER allow small children near batteries.l If battery is swallowed

3Carton InventoryYour garage door opener is packaged in one carton which contains the motor unit and all partsillustrated below.Accessories vary depen

7702CB Outside Quick Release:Required for a garage withNO access door.41A5281 CLSS1 953D8808CB8 Foot (2.4 m) Rail Extension:10 Foot (3 m) Rail Extensi

40WarrantyCHAMBERLAIN® FIVE-YEAR LIMITED WARRANTYLIFETIME MOTOR AND BELT LIMITED WARRANTYThe Chamberlain Group, Inc. (“Seller”) warrants to the fi rst

41Repair PartsRail Assembly PartsAccessoriesInstallation Parts13524612NOTICE1342678910115Description Part Number1 Belt 41A52502 Pulley 144C543 Master

42Repair PartsGarage Door Opener PartsDescription Part Number1 Belt Cap Retainer 41A43712 Gear and Sprocket 41A4885-53 Line Cord 41B42454 End Panel w

© 2014, The Chamberlain Group, Inc.114A4252F All Rights Reserved

4HardwareClevis Pin 5/16"x1-1/2" Ring Fastener (3)Hex Bolt 5/16"-18x7/8" (4)Lock Washer 5/16"-18 (5)Nut 5/16"-18 (6) Se

5AssemblySTEP 1 Assemble the rail and install the trolleyTo prevent INJURY from pinching, keep hands and fingers away from the joints while assembling

6AssemblySTEP 2 Fasten the rail to the motor unitTo avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in thetop of th

7AssemblySTEP 3 Install the idler pulley1. Lay the belt beside the rail, as shown. Grasp the end with the hooked trolley connector and passapproximate

8AssemblySTEP 4 Install the belt1. Pull the belt around the idler pulley and toward the trolley. The ribbed side must contactthepulley.2. Hook the tro