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Preparing your Door 

Before you begin:

• Disable locks.

• Remove any ropes connected to door.

Complete the following test 

to make sure your  door is balanced and

is not sticking or binding:

1. Lift the door about halfway as shown. Release the door. If balanced,

it should stay in place, supported entirely by its springs.

2. Raise and lower the door to see if there is any binding or sticking.

IF YOUR DOOR BINDS

STICKS OR IS OUT OF BALANCE

CALL A TRAINED DOOR

SYSTEMS TECHNICIAN

.

3. Verify equal cable tension on each side of door. Cable tension

should remain equal during the entire travel of the door.

Tools needed

During assembly, installation and adjustment of the operator, instructions
will call for hand tools as illustrated below.

3

4

• This device is not intended for use by small children or infirmed
persons without supervision.
• young children should NOT be permitted to play with the operator or
remote controls.

Carton Inventory

Your door operator is packaged in one carton which contains the motor
unit and the parts illustrated below. Note that accessories will depend on
the model purchased. If anything is missing, carefully check the packing
material.

Hardware Inventory

INSTALLATION 
HARDWARE

Hex Screw #14-10x1-7/8" (

6

x)

 

Screw #6x-1" (2x)

Flat Head Screw 8x1” (2x)

Self Tapping Screw #10-32 (

4

x)

 

Wall Anchor (

6

x)

Handle (1x)

Rope (1x)

Insulated Staples (20x)

Bracket (

2

x)

Bit (1x)

Bell Wire 093B0867

5

6

ASSEMBLY STEP 1

Attach the Collar to the Motor Unit

To avoid installation difficulties, do not run the door operator until
instructed to do so.

Loosen the collar screws (1).

Attach collar to either the left or the right side of the motor unit.
Ensure that the collar is seated all the way on motor shaft until stop is
reached.

Position the collar so that the screws are facing up (accessible when
attached to the torsion bar).

Tighten both sides of collar screws equally to secure collar to the
motor unit (16Nm-19Nm . of torque).
Use Hex bits 1/8” from hardwarebag..

NOTE:

For most installations the screws should be facing up for easy 

access. Do not tighten set screws until indicated.

7

8

8

ASSEMBLY STEP 2

Attach Mounting Bracket to Motor Unit

Loosely attach slotted side of mounting bracket to the same side of
the motor unit as the collar, using self-threading screws provided.

NOTE:

Do not tighten until instructed. Illustrations shown are for left side

installation.

To prevent possible SERIOUS INJURY or DEATH, the collar MUST
be properly tightened. The door may not reverse correctly or limits
may be lost due to collar slip.

Alternate Mounting Kit 

(480LM OPTIONAL):

This kit allows model LM3800A to be mounted below the torsion bar in
the case where the torsion bar is not round or the normal mounting area 
is obstructed.

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9a

Summary of Contents for LM3800TXSA

Page 1: ...Garage Door Operator Model LM3800TXSA Chamberlain GmbH Alfred Nobel Strasse 4 D66793 Saarwellingen www liftmaster eu info liftmaster eu Optional Accessory Available en ar LM3800TXSA...

Page 2: ...oor balanced Do not let the garage door opener compensate for a binding or sticking garage door Sticking or binding doors must be repaired Garage doors door springs cables pulleys brackets and their h...

Page 3: ...uded in the carton This operator is compatible with Doors that use a torsion bar springs and a door no more than 4 2m high 80mm 178mm drums NOT TO BE USED on tapered drums over 152mm High lift and sta...

Page 4: ...w 8x1 2x Self Tapping Screw 10 32 4x Wall Anchor 6x Handle 1x Rope 1x Insulated Staples 20x Bracket 2x Bit 1x Bell Wire 093B0867 5 6 ASSEMBLY STEP 1 Attach the Collar to the Motor Unit To avoid instal...

Page 5: ...erator by sliding the collar over the torsion bar until pilot holes align with bracket Securely tighten collar screws that attach to the torsion bar to 16Nm 19Nm of torque Securely tighten both set sc...

Page 6: ...h conduit cut to proper length and strip insulation Attach with wire nuts not provided Properly secure wire under plastic ties so that wire does not come in contact with moving parts Reinstall the cov...

Page 7: ...parate refer to FLA230 manual Connection of Door in Door Switch 16200LM optional accessory Prevents operator from starting if door in door is open See drawing for wiring Additional material is require...

Page 8: ...ld be protruding through the track Operate the door in the open direction The power door lock should retract before the door begins to move Operate the door in the down direction When the door reaches...

Page 9: ...d aligned 1 If open the door will close If closed it will open 2 If closing the door will stop 3 If opening the door will stop 4 If the door has been stopped in a partially open position it will close...

Page 10: ...ensor Short travel 150 200mm Unplug unit to reset Try to operate motor unit check diagnostic code If it is still flashing 5 times and motor unit moves 150 200mm 6 8 The unit s APE Absolute Positioning...

Page 11: ...f not move the position of the mounting bracket 15 Power lock makes noise when operating Call Chamberlain Liftmaster dealer for replacement power lock TROUBLESHOOTING 1 The operator doesn t operate fr...

Page 12: ...oise level 57dB Travel Rate 24rpm down 36rpm up Safety Personal Push button and automatic stop in down direction Push button and automatic stop in up direction Electronic Automatic force adjustment El...

Page 13: ...ar E1702 2 3 50 TheProtector System 40 400 1 5...

Page 14: ...2 ar EverCharge Protector System Protector System 4 2 80 178 152 4 2 5 5 16 2 25 1 64 76 205 25 100 1 CM475 EverChargeTM SPU 5 2 2 1...

Page 15: ...3 ar 1 2 3 2 1 1 16 19 8 1 480LM LM3800A 14 10 x1 7 8 6 x 1 2 8 x1 2 10 32 4 6 1 1 20 2 1 3 4 6 5 9 9a 6 093B0867...

Page 16: ...4 ar 1 2 3 4 5 1 8 6 7 8 1 5 9 10 11 50 1 2 1 2 3 1 5 2 1 2 3 4 25 1 8 4 16 19 3 5 1 2 3 8 4 5 6 3 11 10 12 13 14 15...

Page 17: ...5 ar 22 1 3 7 6 o 4 90 22 1 1 6 128 LM 1 5 3800 128 LM 128 LM 2 25 1 2 8 2 1 5 5 3 5 16 3 4 5 6 5 1 2 6 1 4 4 1 2 3 4 5 32 6 5 1 2 16 17 18 19 20 21...

Page 18: ...LA230 16200 LM 7 Evercharge SPU CM475 1 SPU 80 2 SPU SPU SPU SPU 2 SPU SPU 3 CM475 SPU 4 5 6 16 1 7 1 7 2 50 8 Protector System 400 40 Protector System 400 The Protector System The Protector System ar...

Page 19: ...7 ar 2 1 2 LED 3 LED 3 3 9 5 50 1 2 1 4 x 2 4 1 2 50 1 2 1 4 x 2 3 4 4 32 30 31...

Page 20: ...6 100 64 128 LM 1 2 3 4 5 6 7 Chamberlain Protector System IR Chamberlain Protector System IR 5 78 LM LED 1 10 45 3 4 3 5 1 2 5 ar 8 33 34 35...

Page 21: ...LED 3 4 LED 5 RPM 9 30 60 LED RPM 150 200 5 150 200 6 8 APE Chamberlain 1 LED 30 2 LED 30 3 30 LED 4 LED 5 LED ar 9 36 37 38...

Page 22: ...LED 6 9 1 2 LED LED LED LED 3 4 5 6 7 4 9 2 8 LED 4 2 9 LED 5 10 11 12 EverCharge 20 13 1 2 1 14 15 Chamberlain Liftmaster www liftmaster eu ar 10...

Page 23: ...9747 E 4 78 LM 5 770 EV The Protector System 6 FLA1 LED 7 16200 LM 230 240 50 40 145 5 10 57 24 36 4 2 14 5 5 16 11 64 433 92 Chamberlain Protector System ar 11 39 40 41 220 240 Volt 50 60Hz E53349 1...

Page 24: ...114A4864B...

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