Craftsman 139.53939D Owner's Manual page 21

INSTALLING THE BRACKETS
Be sure power to the opener is disconnected. Install and align
the brackets so the sensors will face each other across the garage
door, with the beam no higher than 6" (15 cm) above the floor.
They may be installed in one of three ways, as follows.
Garage door trackinstallation (preferred):
• Slip the curved arms over the rounded edge of each door track,
with the curved arms facing the door. Snap into place against
the side of the track. It should lie flush, with the lip hugging the
back edge of the track (Figure 1).
If your door track will not support the bracket securely, wall
installation is recommended.
Waft installation (Figures2 and 3):
• Placethe bracket against the wall with curved arms facing the
door. Be sure there is enough clearancefor the sensor beam to
be unobstructed.
• If additional depth is needed,an extension bracket
(see Accessories) or wood blocks can be used.
• Use bracket mounting holes as a template to locate and drill
(2) 3/16" diameter pilot holes on the wall at eachside of the
door, no higher than 6" (15 cm) abovethe floor.
• Attach brackets to wall with lag screws (not provided).
• If using extension brackets or wood blocks, adjust right and left
assemblies to the same distance out from the mounting
surface. Make sure all door hardware obstructions are cleared.
Floor installation (Figure 4):
• Use wood blocks or extension brackets (see Accessories) to
elevate sensor brackets so the lenses will be no higher than
6" (15 cm) abovethe floor.
• Carefully measure and place right and left assemblies at the
same distance out from the wall. Be sure all door hardware
obstructions are cleared.
• Fastento the floor with concrete anchors as shown.
FigureI
Figure2
Figure3
DOOR TRACKMOUNT (RIGHT SIDE)
L --Door
Track
Lip
WALL MOUNT (RIGHT SIDE)
Indicator
Light
Fasten Wood Block to Wall with
Lag Screws (not provided)
Indicator
Light Sensor
__ Bracket
-----_ _ -]1- (not provided)
_2oo- -- -- \
Lens - - ,e_
WALL MOUNT (RIGHT SIDE)
HARDWARESHOWN ACTUALSIZE
Carriage Bolt
1/4"-20xl/2"
Wing Nut
1/4"-20
Staples
....,.
(Provided with
Extension Bracket) _ _
Lens
Figure4
FLOOR MOUNT (RIGHT SIDE)
J
Light
-- ttach with
Concrete Anchors
; (not provided)
Light
Bracket
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