Craftsman 1/2 HP GARAGE DOOR OPENER 139.53978SRT - Manual (Page 19)

6. Attach the User Safety Instruction label to the wall
near the door control, and frie Maintenance
Instruction label in a prominent location on the
inside of the garage door.
Page 32 explains how to use the door control.
Do NOT connect the power and operate the
opener at this time.
The trolley will travel to the
full open position but will not return to the
dose position until the sensor beam is
connected and properly aligned.
See Safety Reversing Sensor instructions
beginning on page 21.
Installation Step 7
Install the Light and the Lens
Install the light
• Install a 75 watt maximum light bulb in the socket.
The light will turn ON and remain lit for
approximately 4-1/2 minutes when power is
connected. Then the light will turn OFF.
• If the bulb burns out prematurely due to vibration,
replace it with a standard neck "Garage Door
Opener" bulb.
Install the lens
• For convenience, the lens may be installed
after Adjustment Step 4 on page 30.
• Apply slight pressure on the sides of the lens and
slide the tabs into the slots in the end panel.
• Reverse the procedure to remove the lens.
Light
Lens
75 Watt Max.
Light Bulb
Installation Step 8
Attach the Emergency
Release Rope and Handle
• 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" from the end of the rope to prevent
slipping.
• Thread the other end of the rope through the hole
in the release arm of the outer trolley.
• Adjust rope length so the handle is 6 feet above
the floor. Secure with an overhand knot.
If it is necessary to cut the rope, heat seal the
cut end with a match or lighter to prevent
unraveling.
Do not use the red handle to pull the door
open or closed.
The rope knot couid become
untied and you couid fail. Use the emergency
release only to disengage the trolley and, If
possible, only when the door is closed.
Garage doors are heavy. If the door Is open
when the handle is pulled, the door could
close inadvertently if it is not properly
balanced. Serious injury may result to persons
under the door. Make sure the doorway is clear
of persons and obstructions before pulling
handle when door is open.
19