Sears CRHFTSMBN Series Owner's Manual page 23

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. See Figure 5.
• Finger tighten the wing nuts.
• Run the wires from both sensors to the opener. Use
insulated staples to secure wire to wail and ceiling.
• Strip 1/4" of insulation from each set of wires.
Separate white and white/black wires sufficiently to
connect to the opener terminal screws: white to 2 and
white/black to 3.
ALIGNING THE SAFETY SENSORS
• Plug in the opener. The indicator lights in both the
sending and receiving eyes will
connections and alignment are correct.
sending eye
The orange indicator tight will glow
regardless of alignment or obstruction. If the green
receiving eye
indicator light in the
flickering (and the invisible light beam path is not
obstructed), alignment is required.
sending eye
• Loosen the
directly at the receiving eye. Lock in place.
receiving eye
• Loosen the
until it receives the sender's beam. When the green
glows steadily,
indicator light
Figure 6 Wiring the Safety Sensors
Bell Wire
Invisible Light Beam
' Sensor
glow steadily W
is off, dim, or
wing nut and readjust, aiming
wing nut and adjust sensor
tighten the wing nut.
Protection Area
Figure 5
1/4"-20xl/2'
Carriage boH
Trouble Shooting the Safety Sensors
sending eye
1. If the
steadily e^ex
installation, check for:
• Electric power to the opener.
• A short in the white or white/black wires. These can
occur at staples, or at screw terminal connections.
• Incorrect wiring between sensors and opener.
wiring
• A broken wire.
2. If the sending eye indicator light
receiving eye indicator light doesn't:
• Check alignment.
• Check for a broken wire to the receiving eye.
3. If the receiving eye indicator light is dim, realign either
sensor.
NOTE: W hen the invisible beam path is obstruct
m isaligned while the door is dosing, the door wi
reverse, if the door is already open, it will not do
opener lights will flash 10 tim es, (if bulbs are no
installed, 10 dicks can be heard.) See page 21.
23
Wing nut
glow
indicator light does not
glows steadiiyduX
the