Preparing Your Door; Before You Begin; Tools Needed - LiftMaster DDO8900W Manual Del Usuario

Introduction

Preparing Your Door

BEFORE YOU BEGIN:

• Disable locks.
• Remove any ropes connected to the
door.
Complete the following test to make sure
the 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.
3. Door should NOT open or fall rapidly.
If your door binds, sticks, or is out of
balance, call a trained door systems
technician.
Sectional Door

Tools Needed

During assembly, installation and adjustment of the door operator, instructions will call for hand tools as illustrated below.
Stepladder
To prevent possible SERIOUS INJURY or DEATH:
• ALWAYS call a trained door systems technician if door binds, sticks, or is out of
balance. An unbalanced door may NOT reverse when required.
• NEVER try to loosen, move or adjust 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 door BEFORE installing
and operating door operator to avoid entanglement.
To prevent damage to door and operator:
• ALWAYS disable locks BEFORE installing and operating the operator.
• ONLY operate door operator at 120V, 60 Hz to avoid malfunction and damage.
• DO NOT exceed 10 complete cycles of door operation per hour.
Volts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120 Vac - 60 Hz, ONLY
Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 AMPS
Light Duty Commercial Use Rated Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Nm
LED Light (Not Provided) Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.2 AMPS
Drill Tape Measure
5/32", 3/16", 5/16"
and 3/4" Drill Bits
1/4", 5/16", and 3/8" Sockets
and Wrench with 6" Extension
SPECIFICATIONS
Wire Cutters
Screwdriver
Level
Adjustable End Wrench
4
Pliers
Claw Hammer
Pencil
Torque Meter
(not shown)