One-Piece Door Installations - Craftsman 139.53977SRT Manual Del Propietário

Planning (continued)
ONE-PIECE DOOR INSTALLATIONS
• 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.
• Depending on your door's construction, you may
need additional mounting hardware for 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 NOT exceed I14". Otherwise, the safety
reversal system may not work properly.
• The floor or the garage door MUST be repaired to
eliminate the gap.
ONE-PIECE DOOR WITHOUT TRACK
FINISHED CEILING
Support bracket
& fastening
hardware is required.
See page 17.
Header Wall
Rail
Motor unit
Safety Reversing Sensor
Sensor
Gap between floor
and bottom of door must not exceed 1/4".
I
ONE-PIECE DOOR WITH TRACK
_/ CLOSED POSITION
Trolley Stop Bolt Cable Trolley
I
Emergency
!r_m_re d _ Release
Straight Curved Rope & Handle
Door Door
leader Arm Arm
Vail
Safety
Reversing Sensor
S
Floor must be level
across width of door
Access I
, , Door I
' ' ()1
Reversing
Sensor
i_//.
CLOSED POSITION
Trolley Stop Bolt Cable
eader Curved
Bracket Door AITn
'_D °°°°°°°°°
Door I
Bracket Straight
Door
Garage Arm
oor •
Chain
Rail
Emergency
Release
Rope &
Handle
5