Preparing Your Garage Door; Tools Needed - Craftsman 139.5399 Owner's Manual

Preparing your Garage Door

Before you begin:
• Disable locks.
• Remove any ropes connected to garage door.
• Complete the following test to make sure your
garage door is balanced and is not sticking or
binding:
1. Lift the door about halfway as shown. Release
the door. If balanced, it should stay in place
supported entirely by its springs.
2. Raise and lower the door to see if there is any
binding or sticking.
If your door binds, sticks, or is out of balance, call
a trained door systems technician.
Sectional Door
Stepladder
One-Piece Door
Carpenter's
Level
Drill
Sockets and Wrench
1/2", 5/8", 7/16", 9/16"
and 1/4"

Tools Needed

During assembly, installation and adjustment of the
opener, instructions will call for hand tools as
illustrated below.
Pencil
Tape Measure
Wire Cutters
Drill Bits
3/16", 5/16"
and 5/32"
Pliers
Locking pliers
3
WARNING
CAUTION
WARNING
CAUTION
Hack Saw
Claw Hammer
Screwdriver
Adjustable End Wrench