Owner`s manual

ManualsBrandsCraftsman ManualsKitchen139.53975SRT

Mounting and Wiring the Safety Sensors

• Slide a 1/4"-20xl/2" carriage bolt head intothe slot

on both sensors. Use wing nuts to fasten sensorsto

brackets, with lenses pointingtoward each other

across the door. Be sure the lens is not obstructedby

a bracket extension. See Figure 5.

• Finger tightenthe sensor wing nuts.

• Run the wires from bothsensors to the opener. Use

insulatedstaples to secure wire to wall and ceiling.

• Strip 1/4" of insulationfrom each set ofwires.

Separate white and white/black wires sufficientlyto

connectto the opener terminal screws: white to 2

and white/blackto 3.

Aligning the Safety Sensors

• Plug inthe opener. The indicator lightsin boththe

sending and receivingeyes will glow steadilyif wiring

connectionsand alignment are correct.

The sendingeye orange indicator lightwillglow

regardlessof alignment or obstruction. If the green

indicatorlight inthe receiving eye is off, dim, or

flickering(and the invisiblelight beam path is not

obstructed), alignmentis required.

• Loosenthe sending eye wing nut and readjust,

aiming directlyat the receiving eye. Lock inplace.

• Loosen the receiving eye wing nut and adjustsensor

vertically and/or horizontallyuntil it receives the

sender's beam. When the green indicatorlightglows

steadily, tightenthe wing nut.

Figure 5

1/4" 20xl/2" _'_P

CarriageIx)It

Wing nut

Trouble Shooting the Safety Sensors

1. [fthe sendingeye indicatorlightdoes not glow

steadilyafter installation,check for:

• Electdc power to the opener.

• A short inthe white or white/black wires. These can

occurat staples, or at screw terminal connections.

• Incorrectwiringbetween sensorsand opener.

• A brokenwire.

2. If the sending eye indicatorlight glows steadilybut the

receivingeye indicatorlightdoesn't:

• Check alignment.

• Check for a brokenwire to the receiving eye,

3. If the receivingeye indicatorlightis dim, realign either

sensor.

NOTE: When the invisiblebeam path is obstructedor

misaligned whilethe dooris closing, the door will

reverse, ff the door isalready open, it willnot close. The

opener lights willflash 10 times. (if bulbs are not

installed, 10 clickscan be heard.) See page 21.

Figure 6

Connect Wire to

Opener Terminals

Bell Wire

Door Control Sensor

Connections_ Connections

(dotted line) -'_ /

[]

OPENER TERMINAL SCREWS

SeRsor

Sensor

Invisible Light Beam