Chamberlain LiftMaster Security + 3270 1/2 HP Manuel D'instructions page 13

INSTALLATION STEP 7
Install the Light
1. Press the release tabs on both sides of lens. Gently
rotate lens back and downward until the lens hinge is in
the fully open position. Do not remove the lens.
2. Install a 100 watt maximum light bulb in each socket.
Light bulb size should be A19, standard neck only.
The lights will turn ON and remain lit for approximately
4-1/2 minutes when power is connected. Then the
lights will turn OFF.
3. Reverse the procedure to close the lens. Use
A19, standard neck garage door opener bulbs for
replacement.
NOTE: Use only standard light bulbs. The use of short neck
or specialty light bulbs may overheat the endpanel or light
socket.
INSTALLATION STEP 8
Attach the Emergency Release Rope and
Handle
1. Thread one end of the rope through the hole in the
top of the red handle so "NOTICE" reads right side up
as shown. Secure with an overhand knot at least 1"
(2.5 cm) from the end of the rope to prevent slipping.
2. Thread the other end of the rope through the hole in
the release arm of the outer trolley.
3. Adjust rope length so the handle is 6 feet (1.83 m)
above the fl oor. Ensure that the rope and handle clear
the tops of all vehicles to avoid entanglement. Secure
with an overhand knot.
NOTE: If it is necessary to cut the rope, heat seal the cut
end with a match or lighter to prevent unraveling.
To prevent possible OVERHEATING of the endpanel or
light socket:
• DO NOT use short neck or specialty light bulbs.
• DO NOT use halogen bulbs. Use ONLY
incandescent.
To prevent damage to the opener:
• DO NOT use bulbs larger than 100W.
• ONLY use A19 size bulbs.
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.
Emergency
Release Handle
13
100 Watt (Max)
Standard Light Bulb
Release Tab
Lens
Hinge
Rope
Overhand
Knot
Overhand
Knot
Trolley
Release
Arm