Chamberlain 248754 - Manual (Page 33)

33
Care of Your Opener
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 and 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).
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
The lithium battery should produce power for up to
5 years.
NOTICE: To comply with FCC and or Industry Canada rules (IC), adjustment or modifications 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.
To prevent possible SERIOUS INJURY or DEATH:
• NEVER allow small children near batteries.
• If battery is swallowed, immediately notify doctor.
To reduce risk of fire, explosion or chemical burn:
• Replace ONLY with 3V2032 coin batteries.
• DO NOT recharge, disassemble, heat above 100°C (212°F)
or incinerate.
Battery
positive
side up (+)
To Open the Door Manually
DISCONNECT THE TROLLEY:
The door should be fully closed if
possible. Pull down on the
emergency release handle
(so that the trolley release arm
snaps into a vertical position)
and lift the door manually. The
lockout feature prevents the
trolley from reconnecting
automatically, and the door can
be raised and lowered manually
as often as necessary.
TO RE-CONNECT THE
TROLLEY:
Pull the emergency release
handle toward the opener at an
angle so that the trolley release
arm is horizontal. The trolley will
reconnect on the next UP or
DOWN operation, either
manually or by using the control
console or remote.
To prevent possible SERIOUS INJURY or DEATH from a
falling garage door:
• If possible, use emergency release handle to disengage
trolley ONLY when garage door is CLOSED. Weak or
broken springs or unbalanced door could result in an open
door falling rapidly and/or unexpectedly.
• NEVER use emergency release handle unless garage
doorway is clear of persons and obstructions.
• NEVER use handle to pull door open or closed. If rope knot
becomes untied, you could fall.
Lockout position
(Manual disconnect)
NO TIC E
Trolley
Release Arm
(In Manual
Disconnect
Position)
Trolley
NO TICE
Emergency
Release Handle
(Down and Back)
Trolley
Release
Arm
Trolley
To reconnect
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.