Craftsman 139.53225SRT - Manual (Page 16)

Instaiiatlon Step 4
Position the Opener
Foliow instructions which ispplf to- your door
type as illustrated.
To prewent daniafe to steel, ain'minuni:,
fiberglass or glass panel doors, do not rest the
opener on the door withoul ysing
a 2x4.
■k 2x4 laid flat is co-nvenlent for setting an ideal
door-to-T-rall distance.
• Raise the opener onto a stepladcJer.
Fotr wHt nmd help at this point if the ladder Is
not tali enough.
• Open the cioor alt the way and place' a 2x4 !aJd fiat
on the top sectio-ri' be-neath the T-rail.
IÍ file top paml Mis the tmlley when you raise
the dmr, pull down m the trolley release arm to
dfsconmet the inner and outer sectlms. The
tmlley can remain disconnected until Step í2 Is
comptéted.
T-fail 2*4
Trolley
IE
T » - - ; - — - - 3 ^
a t , ,
I
Slepacfcfef 4 1
I
vVilfs the iJoof !utly epen anej parallel to the floor,
шеаоше the dictunce fiorr. the floor to the top ot
ilto dijfjf
Uriny и oiopladdfif as a rtippoit, ms« the operier
to Ihi: same distance a?> ttie door from the floor {it
vnii bo at a oitijM arigio as shown).
Tfie tr>p ot the door -should be level with the top of
the ofiener. Do not pcssition ihe opener more than
2" above itiis point
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