Carton Inventory; Hardware; Additional Items You May Need - Chamberlain LJ8900W Manual

Introduction

Carton Inventory

Your door operator is packaged in one carton which contains the motor unit and the parts illustrated below. If anything is missing,
carefully check the packing material.
Single Button
Control Station
Cable Tension Monitor
with 2-Conductor
Green/White Bell Wires

Hardware

Screw #10-32 (2)
Screw 14-10x2" (4)
Handle

Additional Items You May Need

Extension brackets (Model 041A5281-1)
or wood blocks: Depending upon building
construction, extension brackets or wood
blocks may be needed to install the safety
reversing sensor.
Fastening hardware: Alternate fl oor
mounting of the safety reversing sensor
will require hardware not provided.
Door Operator
Mounting
Bracket
Rope
Screw 1/4"-20x1/2" (2)
Carriage Bolt 1/4"-20x1/2" (2)
90˚ connector for cable conduit or fl ex
cable adapter: Required for permanent
wiring.
Battery Backup (Model 485LM): Provides
backup power to the door operator.
The Protector System (2) Safety
Reversing Sensors (1 Sending
Sensor and 1 Receiving Sensor)
with 2-Conductor White and
White/Black Bell Wire attached
Safety Reversing
Sensor Bracket (2)
5
2 Conductor Bell
Wire White and
White/Red
Safety Labels
and Literature
Wing Nut 1/4"-20 (2)
Automatic door lock (Model 841LM): The
automatic door lock is used to prevent the
door from being manually opened once the
door is fully closed.
Collar with
Set Screws