Chamberlain 3840 Garage Door Opener User Manual


 
5
Straight Door
Arm Section
Curved Door
Arm Section
Safety Labels
and
Literature
Header Bracket
UP
CEILING MOUNT ONLY
2 Conductor Bell Wire
White & White/Red
Remote Control
Visor Clip
Door Bracket
The Protector System
®
(2) Safety Reversing Sensors
(1 Sending Eye and 1 Receiving Eye)
with 2-Conductor White & White/Black
Bell Wire attached
Safety Sensor
Bracket (2)
Sprocket Coupling
Trolley
Rail
Motor Unit with 2 Light Lenses
Battery
(Optional)
SECURITY
®
3-Button Remote Control
LOCK
LIGHT
Your garage door opener is packaged in two cartons which
contain the motor unit and all parts illustrated below.
Accessories will depend on the model purchased. If
anything is missing, carefully check the packing material.
Parts may be stuck in the foam. Hardware for installation
is also listed below.
Carton Inventory
RAIL ASSEMBLY
Coupling Sleeve (1)
Hex Bolt 1/4"-20 x 5/8" (4)
Nut 1/4" - 20 (4)
INSTALLATION HARDWARE
Hex Bolt 5/16"-18x7/8" (4)
Lag Screw 5/16"-9x1-5/8" (2)
Lag Screw 5/16"-18x1-7/8" (2)
Clevis Pin 5/16"x2-3/4" (1)
Clevis Pin 5/16"x1-1/4" (1)
Clevis Pin 5/16"x1" (1)
Nut 5/16"-18 (4)
Lock Washer 5/16" (4)
Screw 6-32x1" (2)
Self-Threading Screw 1/4"-14x5/8" (2)
Insulated Staples (10)
Ring Fastener (3)
Drywall Anchors (2)
Carriage Bolt 1/4"-20x1/2" (2)
Wing Nut 1/4"-20 (2)
Spacers (2)
Rope
Handle
Smart Control Panel
®