Chamberlain WD962KD Manuale Utente

3

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.

During assembly, installation and adjustment of the opener, 
instructions will call for hand tools as illustrated below.

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.

To prevent damage to garage door and opener:
•  ALWAYS disable locks BEFORE installing and operating

the opener. 

•  ONLY operate garage door opener at 120V, 60 Hz to avoid 

malfunction and damage.

2

1

Pliers

Wire Cutters

Claw Hammer

Hack Saw

Screwdriver

Adjustable End Wrench

Sockets and Wrench
1/2", 5/8", 7/16", 9/16" 
and 1/4"

Drill

Tape Measure

2

1

Stepladder

Pencil

Drill Bits 
3/16", 5/16" 
and 5/32"

Carpenter’s
Level (optional)