Care Of Your Garage Door Opener - Craftsman 139.53976SRT Owner's Manual

Care of Your Opener
LiMiT AND FORCE ADJUSTMENTS:
Weather conditions may
cause some minor
changes in door
operation requiring some
re-adjustments,
particularly during the
first year of operation.
Pages 28 and 29 refer to
the limit and force
adjustments. Only a
screwdriver is required.
FORCE CONTROLS
LIMIT CONTROLS
Follow the instructions carefully.
Repeat the safety reverse test (page 30) after any
adjustment of limits or force.
MAINTENANCE SCHEDULE
Once a Month
• Manually operate door. If it is unbalanced or
binding, call a trained door systems technician.
• Check to be sure door opens & closes fully. Adjust
limits and/or force if necessary. (See pages 28
and 29.)
• Repeat the safety reverse test. Make any
necessary adjustments. (See Adjustment Step 3.)
Twice a Year
• Check chain tension. Disconnect trolley first. Adjust
if necessary (See page 11).
Once a Year
• Oil door rollers, bearings and hinges. The opener
does not require additional lubrication. Do not
grease the door tracks.
THE REMOTE CONTROL BATTERY
To prevent possible SERIOUSINJURYor DEATH:
. NEVERallow small children near batteries.
. if battery swallowed, immediately notify doctor.
The lithium battery should
produce power for up to
5 years. To replace battery, use
the visor clip or screwdriver
blade to pry open the case as
shown. Insert battery positive
side up.
Dispose of old battery properly.
3-FUNCTION
Open this end
first to avoidJ_ __._ _
cracking __-_-_
hous_
Having a Problem?
1. The opener doesn't operate from either the
Door Control or the remote contro#
• Does the opener have electric power? Plug a lamp
into the outlet. If it doesn't light, check the fuse box
or the circuit breaker. (Some outlets are controlled
by a wall switch.)
• Have you disabled all door locks? Review
installation instruction warnings on page 11.
• Is there a build-up of ice or snow under the door?
The door may be frozen to the ground. Remove
any restriction.
• The garage door spring may be broken. Have it
replaced.
• Repeated operation may have tripped the
overload protector in the motor. Wait 15 minutes
and try again.
2. Opener operates from the remote, but not from
the Door Control:
• Is the door control lit? If not, remove the bell wire
from the motor unit terminals. Short the red and
white terminals by touching both terminals at the
same time with a piece of wire. If the opener runs,
check for a faulty wire connection at the door
control, a short under the staples, or a broken
wire.
• Are the wiring connections correct? Review
Installation Step 6, page 18.
3. The door operates from the Door Control, but
not from the remote control:
• Is the door push button flashing? If your model
has the Lock feature, make sure it is off.
• Program the opener to match the remote control
code. (Refer to instructions on the motor unit
panel.) Repeat with all remotes.
4. The remote control has short range:
• Change the location of the remote control in your
car.
• Check to be sure the antenna on the side or back
panel of motor unit extends fully downward.
• Some installations may have shorter range due to
a metal door, foil backed insulation, or metal
garage siding. (Antenna Extender Kit 41A3504)
5. Opener noise is disturbing in living quarters of
home:
• If operational noise is a problem because of
proximity of the opener to the living quarters, the
Vibration Isolator Kit 41A3263 can be installed.
This kit was designed to minimize vibration to the
house and is easy to install.
NOTICE: To comply with FCC and/or Industry Canada rules, adjustment or
modifications of this receiver and/or transmitter are prohibited, except for changing
the code setting or replacing the battery. THERE ARE NO OTHERUSER
SERVICEABLEPARTS.
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