Craftsman 139.53225SRT - Manual (Page 21)

Safety Reversing System
iiiferination f ou'll need before yoy begin the installation of the safety re¥ersing sensor.
The safety reversing sensor must be connected
and aligned correctly before the garagi door
opener will move in. the down dlrectlo-n.. This Is a
required safety device and cannot be disabled.
instaltaiion procedures are the same for sectional
and one-piece doors.
■
Without ê propertf working safety reversing
sensor, pêTsom (particularly chIMren} muté
te Iniumé or Mlfed' by s elmlng f amfe door.
Read and fellow ali instructions.
To protect small children,: install the safety
reversing sensor so that thé beam will be no
higher than 4'*'-S*‘ above the garage floor.
Disconnect power to the garage door opener
before Instaillng the safety reversing sensor.
Be sure power to the opener is disconnecfed.
The sending eye transmits an invisible iight beam to
file receiving eye The units can be instnised on
esthet Ride ot the garage door as long as the sun
novor TihineG directly into the receiving eye lens.
l.ook at the label on the connector end of each case
ÎO identify the sensors
The hiackcT-R rminî be connected and tar,toned .so
that the sendifig and iecetving eyes lace each otiier
as I’hown m rigun,; t
If an ohstnict'on breaks the light beeun while tfvj
garage cl-nor ie ckvrng. tfm doo' win .ief/ md
re''er.se t" toll open pnritiort and the opcmei lights
will flash ÎO' ‘3 seconds
Ttio brackets muiU be sccurtdy fastened to a soiirj
surface such as the studs on either ssdc: of ttse dour,
or aiJd a piece of
wood a! each locrstior, if irsatallinq ifi
ma.ronr/ consbuction
■| tie invisible light beani palli гпигД be unobctructed
No pad of tho garage door {or door tracks, springs
tsingoG, roiiers or other hardware) can interrupt the
biioni wfiile Win fJtvjr IS rk.irariyi If it does, uRc a pieu,-
of wood to bnitiJ Tiut each scTiSor mouRiiru.; юсрДюп to
itio гтшп 10 !;'| dopih roc;uired for iight fv>am i:‘earaii<:f‘
Sensot Seart
4.€* max.
шьлт
Itoor
\
\
M) « i r i .3f5T,
4 < ’ fit ’ Ï.
(Hr''- i.jI’T' - - ■■ ^
.tlilL 1 I'jht dêMiT
Prôiætbn Атш.
Figure 1: Facing the door from inside the garage
21