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Additional Items For Purchase
The following items are REQUIRED to complete
the installation:
SAFETY SENSORS
The Model 50-220 safety sensors are intended for
installation with the operators covered in this manual.
To order call 1-800-528-2806 or visit www.liftmaster.com.
HARDWARE
• 5/16" mounting hardware for gate bracket.
• The following hardware is needed to mount the control
box depending on the mounting surface:
Wood: Four #8 1-1/4" zinc plated wood screws.
Metal: Four #10-32x6" zinc plated machine screws with
nut and lock washers.
Concrete, Brick, etc.: Four 1/4" x 1-3/4" masonry
screws.
CONDUIT
UL Listed outdoor electrical conduit with 3/4" diameter to
hold the extension cable between the junction box and the
control box.
Tools Needed
During assembly, installation and adjustment of the operator, instructions will call for tools as illustrated below.
Screwdriver
Adjustable End Wrench
Tape Measure
2
1
Pencil
Carpenter's Level
Clamps
Phillips Head Screwdriver
Deep Well Sockets
and Wrench
1/2", 5/8", 7/16", 9/16"
and 1/4"
Hammer
Drill
Drill Bits
1/2", 3/16", 5/16"
and 5/32"
Wire Cutters (Optional) Wire Strippers (Optional)
Welder (Optional)
7 Introduction
ALL MODELS: LA412-S ONLY: