Craftsman 139.53644SRT Operations Instructions download pdf (Page 22)

installation Step 10 I

install the Safety Reversing Sensor

Figures 2 and 3 show assembly of brackets and

"C" wrap based on the recommended installation of

the sensors as shown on page 21.

However, Figures 4 and 5 are variations which may

fit your installation requirements better. Make sure

the wraps and brackets are aligned so the

sensors will face each other across the garage

door.

, Fasten the "C" wraps to the mounting brackets

having square holes, using the hardware shown

in Figure 2.

• Connect each assembly to a slotted bracket, using

the hardware shown in Figure 3.

Note the alignment of the brackets for left and

right sides of the door.

• Finger tighten the lock nuts.

• Use bracket mounting holes as a template to

locate and drill (2) 3/16" diameter pilot holes on

both sides of the garage door, 4"-6" above the

floor but not exceeding 6". (See warning on

page 21 .)

• Attach bracket assemblies with 1/4"x1-1/2" lag

screws as shown in Figure 3.

• Adjust right and left side bracket assemblies to the

same distance out from the mounting surface.

Make sure all door hardware obstructions are

cleared. Tighten the nuts securely.

Figure 2

i /,

#10-32

Lock Nuts

Mounting Bracket

With Square Holes

"C" Wrap

#10-32x3/8"

Screws

Figure 3

1/4-20xl/2" Carriage Bolts

(with square shoulder)

j Bracket

with Slot

/ _ M.ounting Bracket

f_/1/4"-20 _uare Holes

_OCKNuts

"C" Wrap

#10-32x3/8" #10x32

Screw Lock Nut

Hardware Shown Actual Size

Lag Screw Staples

1/4"-20xl/2"

Carriage Bolts

1/4"-20

Lock Nut

Figure 4

Alternate Wall Mount

Inside

Garage

Wall

Mounting Bracket

with Slot

_ Mounting Bracket

with Square Holes

with wire

indicator Light

Figure 5

Alternate Floor Mount

Inside

Garage Sensor with wire

T Wall

, /Indicat°r Light

Mounting Bracket

with Square Holes

Mounting Bracket

j with Stot

Attach with

concrete anchors

(not provided)

Garage

Floor ........

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 39 40

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Craftsman 139.53644SRT Operations Instructions Page 22

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