3900PLD Manual
Page 1
... The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com patible with Com Details Owner's Manual See Page 13 for ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the manual near the door after installation. ■ The door WILL NOT CLOSE unless The Protector System®...
... The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 www.liftmaster.com patible with Com Details Owner's Manual See Page 13 for ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the manual near the door after installation. ■ The door WILL NOT CLOSE unless The Protector System®...
3900PLD Manual
Page 2
... safety reversal system 19 Test The Protector System 19 Test cable tension monitor 20 To open door manually 20 Operation 21-25 Operation safety instructions 21 Using your door operator 21 Care of serious injury ... change a keyless entry PIN (Not Provided 27 Programming remote light (Not Provided 28 Repair Parts 29 Installation parts 29 Motor unit assembly parts 29 Accessories 30 Notes 31 Repair Parts and Service 32 INTRODUCTION Safety Symbol... When you see this Signal Word on the following pages, it is installed, operated, maintained and tested in this manual.
... safety reversal system 19 Test The Protector System 19 Test cable tension monitor 20 To open door manually 20 Operation 21-25 Operation safety instructions 21 Using your door operator 21 Care of serious injury ... change a keyless entry PIN (Not Provided 27 Programming remote light (Not Provided 28 Repair Parts 29 Installation parts 29 Motor unit assembly parts 29 Accessories 30 Notes 31 Repair Parts and Service 32 INTRODUCTION Safety Symbol... When you see this Signal Word on the following pages, it is installed, operated, maintained and tested in this manual.
3900PLD Manual
Page 7
..., concrete or door/flag bracket. Disable ALL locks and remove ALL ropes connected to door BEFORE installing operator to help assure proper alignment of the torsion bar. Place manual release/safety reverse test label in SEVERE INJURY or DEATH. 3. Close the door completely. 2. ...of installation, test safety reversal system. Securely tighten both set screws firmly, without damaging the motor unit. 5. ALL repairs...
..., concrete or door/flag bracket. Disable ALL locks and remove ALL ropes connected to door BEFORE installing operator to help assure proper alignment of the torsion bar. Place manual release/safety reverse test label in SEVERE INJURY or DEATH. 3. Close the door completely. 2. ...of installation, test safety reversal system. Securely tighten both set screws firmly, without damaging the motor unit. 5. ALL repairs...
3900PLD Manual
Page 8
...unless doorway is clear of the garage door track with hardware provided. 5. To prevent possible SERIOUS INJURY or DEATH from being manually opened once the door is ideal in several places. 6. Check for clearance. Emergency Release Cable Overhand Knot Rope Emergency NOTICE Release... Garage DDoooorr TTrraacckk Lock Template TOP DRILL 5/16" DRILL 3/4" DRILL 5/16" HARDWARE SHOWN ACTUAL SIZE Lock Screw 1/4-20 x 1/2" (2) Staples 8 INSTALLATION STEP 2 Attach the Emergency Release Rope and Handle • Thread one end of the rope through the loop in an open door falling rapidly and...
...unless doorway is clear of the garage door track with hardware provided. 5. To prevent possible SERIOUS INJURY or DEATH from being manually opened once the door is ideal in several places. 6. Check for clearance. Emergency Release Cable Overhand Knot Rope Emergency NOTICE Release... Garage DDoooorr TTrraacckk Lock Template TOP DRILL 5/16" DRILL 3/4" DRILL 5/16" HARDWARE SHOWN ACTUAL SIZE Lock Screw 1/4-20 x 1/2" (2) Staples 8 INSTALLATION STEP 2 Attach the Emergency Release Rope and Handle • Thread one end of the rope through the loop in an open door falling rapidly and...
3900PLD Manual
Page 23
...TROUBLESHOOTING) 1. The door may be broken. The door doesn't open completely: • Is something obstructing the door? For an existing installation, see installation step 4). • Check the safety reversing sensor. Repeat safety reverse test after the adjustment is complete. 8. Close the door and... The remote control has short range: • Check to a metal door, foil backed insulation, or metal siding. 5. Operate the door manually. Remove any point of travel while being supported entirely by its springs. Is it doesn't light, check the fuse box or the circuit ...
...TROUBLESHOOTING) 1. The door may be broken. The door doesn't open completely: • Is something obstructing the door? For an existing installation, see installation step 4). • Check the safety reversing sensor. Repeat safety reverse test after the adjustment is complete. 8. Close the door and... The remote control has short range: • Check to a metal door, foil backed insulation, or metal siding. 5. Operate the door manually. Remove any point of travel while being supported entirely by its springs. Is it doesn't light, check the fuse box or the circuit ...
3900PLD Manual
Page 29
... bell wire attached KEY NO. 7 8 PART NO. 41A6388 41A5266-1 41A6298 114A3593 DESCRIPTION Collar with set screws (2) Safety sensor brackets (2) NOT SHOWN Installation hardware bag (includes hardware listed on page 5) Owner's manual Motor Unit Assembly Parts 2 1 6 5 3 4 KEY NO. 1 2 3 PART NO. 41DJ001 41A6408 41C168 DESCRIPTION Logic board complete with plate Absolute Encoder System Transformer...
... bell wire attached KEY NO. 7 8 PART NO. 41A6388 41A5266-1 41A6298 114A3593 DESCRIPTION Collar with set screws (2) Safety sensor brackets (2) NOT SHOWN Installation hardware bag (includes hardware listed on page 5) Owner's manual Motor Unit Assembly Parts 2 1 6 5 3 4 KEY NO. 1 2 3 PART NO. 41DJ001 41A6408 41C168 DESCRIPTION Logic board complete with plate Absolute Encoder System Transformer...
3900PLD Manual
Page 30
... installation onto the wall or floor. 475LM 377LM Keyless Entry with Security✚® : Enables end user to operate door operator from being manually opened once closed. 30 Also can be mounted below the torsion bar in their home with their car with an additional LiftMaster ...Security✚® remote. 41A6102 EverCharge™ StandBy Power System: Provides backup power to the model 3900 door operator. Alternate...
... installation onto the wall or floor. 475LM 377LM Keyless Entry with Security✚® : Enables end user to operate door operator from being manually opened once closed. 30 Also can be mounted below the torsion bar in their home with their car with an additional LiftMaster ...Security✚® remote. 41A6102 EverCharge™ StandBy Power System: Provides backup power to the model 3900 door operator. Alternate...