Chamberlain 3800PC - Manuel (Page 4)

4
Introduction
Preparing Your Garage Door
BEFORE YOU BEGIN:
• Disable locks.
• Remove any ropes connected to the
garage door.
Complete the following test to make sure
the garage door is balanced and is not
sticking or binding:
1. Lift the door halfway up. Release the
door. If balanced, it should stay in place,
supported entirely by its springs.
2. Raise and lower the door to check for
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.
To prevent damage to garage door and opener:
• ALWAYS disable locks BEFORE installing and operating the opener.
• ONLY operate garage door opener at 120 V, 60 Hz to avoid malfunction and
damage.
• DO NOT exceed 10 complete cycles of door operation per hour.
To prevent possible SERIOUS INJURY or DEATH:
• ALWAYS call a trained door systems technician if garage door binds, sticks, or is
out of balance. An unbalanced garage door may NOT reverse when required.
• NEVER try to loosen, move or adjust garage door, door springs, cables, pulleys,
brackets or their hardware, ALL of which are under EXTREME tension.
• Disable ALL locks and remove ALL ropes connected to garage door BEFORE
installing and operating garage door opener to avoid entanglement.
Tools Needed
During assembly, installation and adjustment of the garage door opener, instructions will
call for hand tools as illustrated below.
Specifi cations
Volts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Vac - 60 Hz, ONLY
Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 AMP
Rated Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325 in. lb/sec 10 Cycles per Hour
Pliers
Wire Cutters
Claw Hammer
Screwdriver
Adjustable End Wrench
1/4", 5/16" & 3/8" Sockets
and Wrench with 6" Extension
Drill Tape Measure
2 1
Stepladder
Pencil
3/16" and 1/8"
Hex Key Wrench
Needle Nose Pliers
5/32", 3/16", 5/16"
and 3/4" Drill Bits
Sectional Door
Torque Meter (not shown)