Craftsman 139.53991 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 properly working safety reversal system,
persons (particularly small children) could be
SERIOUSLYINJUREDor KILLED by a closing garage
door.
• The gap betweenthe bottom of the garage door and
the floor MUST NOT exceed 1/4". 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 \_\ "-_r _
& fastening _\ _/
hardware is required. \'_\
__ Header Wall
/II-r__ _,, Mo,oron,
/__ Wall-mounted
/11 --71__tl I_ --- °°°'°°°'_°'.
/ I I R II %=11 _1 I Access /
/ _-_ II I_-L!i_I I
Door _ BRrailcket
o
/ 114 I I I I_ I I
Door
/ 1_ ____ Bracket
| I_L-_,___ Safety Reversing
_L _ _ Gap between floor Sensor
CLOSED POSITION
Rail Assembly
Safety Reversing and bottom of door
Sensor must not exceed 1/4"
Trolley
Straight Curved
Garage Door Door
Door Arm Arm
Emergency
Release
Rope & Handle
ONE-PIECE DOOR WITH TRACK
_,,, _eve_ing
Reversing Sensor must not exceed 1/4" i
Garage
Door
CLOSED POSITION
Rail Trolley
Bracket
I
Curved _L_ I
Bracket Door Arm _-_.._
Rail Assembly
,# I I
....... I.... _.,,, I
I
Door i
Bracket Straight 1
Door _
Arm
Emergency Release
Rope & Handle