Planning; One-Piece Doorinstallations - Craftsman 139.536481DM Manual Del Propietário

Planning (Continued)
ONE-PIECE DOORINSTALLATIONS
• Generally,a one-piece door does not require reinforcement. If
your door is lightweight, refer to the information relating to
sectional doors in Installation Step 11.
• Dependingon your door's construction, you may need
additional mounting hardwarefor the door bracket (Step 11).
Without a properly working safety reversal system, persons
(particularly small children) could be SERIOUSLYINJUREDor
KILLED by a closing garage door.
• The gap between the bottom of the garage door and the
floor MUST NOTexceed 1/4" (6 mm). Otherwise, the safety
reversal system may NOTwork properly.
• The floor or the garage door MUST be repaired to eliminate
the gap.
ONE-PIECE DOORWITHOUTTRACK
Header
Wall
Slack in chain tension
is normal when
garage door is closed.
__ Wall-
mounted
}oor
;ontr
I
_afeb _-
Reversing Sensor
andbottom of
Safety door m ustnotexceed 1 /4" ( 6mm)
Reversing Sensor
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 16.
Access
Door
0
Motor Unit
CLOSEDPOSITION
Cable
Pulley Bracket
Trolley
Door j j
I I Emergency
. Release
_ed RR_lDeeaS_ Hand,e
_nr-- Hope_ uanole
,_ Arm Arm
Garage
Door
ONE-PIECE DOORWITH TRACK
_. _ _ Slack in chain tension is normal when _
Header
Fo eeo wa,,
IlI II !lira I I I Garage
--
__ Door
andbottomof door Sensor
----"- Safety must not
/
Reversing Sensor exceed 1/4" (6 mm) /
d
5
CLOSEDPOSITION
Cable Cable Trolley Chain
Pulley Bracket I I_
.
"X'_ Header Curved _ R!il
Bracket Door Arm "_-/ I ....
Y////i:J Door Straight ,..J...
N i c,otooor
"//A Arm
Emergency R elease
Rope & Handle