One-Piece Door Installations; One-Piece Door Without Track - Craftsman 139.536481DM 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).

ONE-PIECE DOOR WITHOUT TRACK

Header
Wall
Safety
Reversing Sensor
ONE-PIECE DOOR WITH TRACK
Safety
Reversing Sensor
Wall-
mounted
Door
Control
Safety
Reversing Sensor
Gap between floor and bottom of
door must not exceed 1/4" (6 mm)
Access
Door
Safety
Gap between floor
Reversing
and bottom of door Sensor
must not
exceed 1/4" (6 mm)
Without a properly working safety reversal system, persons
(particularly small children) could be SERIOUSLY INJURED or
KILLED by a closing garage door.
• The gap between the bottom of the garage door and the
fl oor MUST NOT exceed 1/4" (6 mm). Otherwise, the safety
reversal system may NOT work properly.
• The fl oor or the garage door MUST be repaired to eliminate
the gap.
Access
Cable
Door
Pulley Bracket
Header
Bracket
Door
Bracket
Header
Wall
Cable
Pulley Bracket
Header
Wall
Header
Bracket
Door
Garage
Bracket
Door
5
Motor Unit
CLOSED POSITION
Cable
Trolley
Rail
Emergency
Release
Straight Curved
Rope & Handle
Door Door
Arm Arm
Garage
Door
CLOSED POSITION
Trolley
Chain
Cable
Curved
Rail
Door Arm
Straight
Door
Arm
Emergency Release
Rope & Handle