Assembly Step - Chamberlain LM3800A Manual De Instrucciones

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.
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IF YOUR DOOR BINDS STICKS OR IS OUT OF BALANCE
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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 4
During assembly, installation and adjustment of the operator, instructions
will call for hand tools as illustrated below.
• 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" (4x)
Screw #6x-1" (2x)
Flat Head Screw 8x1" (2x)
Self Tapping Screw #10-32 (2x)
Wall Anchor (4x)
Handle (1)
Rope (1x)
Insulated Staples (20x)
Bracket (1x)
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CALL A TRAINED DOOR
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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.
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.
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.
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.
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