Care Of Your Garage Door Opener - Chamberlain 3275 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 fi rst year of operation.
Pages 23 and 24 refer to the limit and force adjustments.
Only a screwdriver is required. Follow the instructions
carefully.
Repeat the safety reverse test (Adjustment Step 3,
page 26) after any adjustment of limits or force.
FORCE CONTROLS
LIMIT CONTROLS
MAINTENANCE SCHEDULE
Every Month
• Manually operate door. If it is unbalanced or binding, call
a trained door systems technician.
• Check to be sure door opens and closes fully. Adjust
limits and/or force if necessary. (See pages 23 and 24.)
• Repeat the safety reverse test. Make any necessary
adjustments. (See Adjustment Step 3.)
Two Times a Year
• Check chain tension. Disconnect trolley fi rst. Adjust if
necessary (see page 7).
Every Year
• Oil door rollers, bearings and hinges. The opener does
not require additional lubrication. Do not grease the door
tracks.
Every Three to Four Years
• Use a rag to wipe away the existing grease from the
garage door opener rail. Reapply a small layer of white
lithium grease to the rail.
THE REMOTE CONTROL BATTERY
To prevent possible SERIOUS INJURY or DEATH:
• NEVER allow small children near batteries.
• If battery is swallowed, immediately notify doctor.
To reduce risk of fi re, explosion or chemical burn:
• Replace ONLY with 3V2032 coin batteries.
• DO NOT recharge, disassemble, heat above 100° C
(212° F) or incinerate.
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.
Replace the battery with only
3V2032 coin cell batteries.
NOTICE: To comply with FCC and or Industry Canada (IC) rules,
adjustment or modifi cations of this receiver and/or transmitter
are prohibited, except for changing the code setting or replacing
the battery. THERE ARE NO OTHER USER SERVICEABLE
PARTS.
Tested to Comply with FCC Standards FOR HOME OR OFFICE
USE. Operation is subject to the following two conditions: (1)
this device may not cause harmful interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation.
28
Battery
positive
side
up (+)