Safety Information, Precautions, Tools; Testing Your Garage Door For Binding & Balance - Craftsman 139.53963SRT Owner's Manual

Safety Information and Precautions; Tools
An unbalanced g aragedoormightnotreverse w hen
required andsomeone under the doorcould be seriously
injuredor killed.
If yourgaragedoorbinds,sucksor Is out ofbalance, c all
for professional garagedoorservice.Garage doors,door
springs, c ables,pulleys, b rackets, a nd theirhardware are
underextremetens/on and can causeseriousInju,ry or
death. Do not try to loosen, move or adjust them
yourself!
Ropesleft on a garage door could causesomeoneto
become entangled and killed. Remove all ropes
canna€tedto thedoorbeforeInstalling andoperating the
opener,
To avoiddamage to thegaragedoorend opener, d isable
locksbeforeInstallingand operating the opener.Use a
woodscrewor nailto holdlocksinthe "open'(unlocked)
position.
Operation at otherthan 120V 60 Hz will cause opener
malfonctlonanddamage.
Identify the type and height of your door, any special
conditions that exist, and any additional materials that
may be required. Refer to pages 6 and 7.
Test Your Door for Balance
Before you begin, complete the following test to make
sure your door is balanced, and is not sticking or
binding:
• Lift the door about halfway as shown. Release the door.
It should stay in place, supported entirely by its springs.,
• Raise and lower the door to see if there is any binding or
sticking.
Sectional Door
One-Piece Door
During assembly, installation and adjustment of the opener, instructions will call for tools shown below.
Lev_
3