Mounting And Wiring The Safety Sensors; Aligning The Safety Sensors; Troubleshooting The Safety Sensors - Craftsman 139.53910 Manual Del Propietário

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MOUNTING AND WIRING THE SAFETY SENSORS

• Slide a 1/4"-20x1/2" carriage bolt head into the slot
on each sensor. Use wing nuts to fasten sensors to
brackets, with lenses pointing toward each other
across the door. Be sure the lens is not obstructed
by a bracket extension (Figure 5).
• Finger tighten the wing nuts.
• Run the wires from both sensors to the opener. Use
insulated staples to secure wire to wall and ceiling.
• Strip 1/4" (6 mm) of insulation from each set of
wires. Separate white and white/biack wires
sufficiently to connect to the terminal screws: white
to 2 and white^lack to 3 (Figure 6).

ALIGNING THE SAFETY SENSORS

• Plug in the opener. The indicator ilghts in both the
and
will
sending
receiving eyes
wiring connections and alignment are correct.
The
eye orange indicator light will glow
sending
regardless of alignment or obstruction, if the green
indicator ilght in the
receiving eye
flickering (and the invisible iight beam path is not
obstructed), alignment is required.
• Loosen the
wing nut and readjust,
sending eye
aiming directly at the
receiving eye.
• Loosen the
wing nut and adjust
receiving eye
sensor until it receives the sender's beam. When
the green indicator light
glows steadily
wing nut.
Figure 5

TROUBLESHOOTING THE SAFETY SENSORS

1. If the
if
glow steadily
2. If the
is off, dim, or
3. If the
Lock in place.
NOTE:
or misaligned while the door is closing, the door will
reverse. If the door is already open, it will not close.
tighten the
The opener lights will blink 10 times. See page 20.
indicator light does not
sending eye
installation, check for:
steadily a^er
• Electric power to the opener.
• A short in the white or white/biack wires. These
can occur at staples, or at opener connections.
• Incorrect wiring between sensors and opener.
• A broken wire.
indicator light
sending eye
the
indicator light doesn't:
receiving eye
• Check alignment.
• Check for an open wire to the
indicator light is dim, realign
receiving eye
either sensor.
When the invisible beam path is obstructed
glow
but
glows steadily
receiving eye.

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