Craftsman 139.53927 Owner's Manual page 5

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 12
• Depending on your door's construction, you may
need additional mounting hardware for the door
bracket (Step 12).
Without a properlyworking 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 floor MUST NOT exceed 1/4" (0.625 cm).
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 20.
Header Wall
Rail
Motor unit
I
ACCESS
Door
Safety Reversing
Gap between f_oor Sensor
Safety Reversing and bottom of door
Sensor must not exceed
1/4" (6 mm)
©
ONE-PIECE DOOR WITH TRACK
Access
Wall-mounted
Door Control
Safety
p between floor Reversing
and bottom of door Sensor
must not exceed
Reversing Sensor 1/4" (6 mm)
Rail
Bracket
Header
Bracket
Door
Bracket
Door
teader_
Vall
CLOSED POSITION
Rail Assembly
Trollel
Emergency
Rope & Handle
Straight Curved
Door Door
Arm Arm
CLOSED POSITION
Header _, Rail
Wall J Bracket Trolley
%°1 I
V V 'Noader Curved I
Br_cketDoo ooooooooooo]D°°r Armi_! Rail Assembly
Garage Bracket St aig tt -L
Door Door
_°arge_ Arm ncy Release
"'"" Rope & Handle
5