Craftsman 139.53918D Manual Del Propietário página 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.
• Dependingon 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
KILLEDby a closing garage door.
• The gap between the bottom of the garage door and the floor
MUST NOT exceed 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
SafetyReversing
Sensor
Header Wall
Rail
Access
Door
o
Safety Reversing
Sensor
Gap between floor
and bottom of door must
not exceed 1/4" (6 mm).
FINISHEDCEILING
Support bracket
& fastening
hardware is required.
See page 16.
Wall-Mounted
Door Control
Motor Unit
CLOSED POSITION
Rail Tab Belt Trolley
eader
_all Door
Cul
Door
Arm
Emergency
Release
Rope & Handle
ONE-PIECE DOORWITH TRACK
Gap between floor
and bottom of door
Safety must not exceed
Reversing Sensor 1/4" (6 mm).
Access
Door
Safety
Reversing Sensor
Header
Wall
CLOSED POSITION
Rail Tab Belt Trolley
Door
Straight
Door
Arm
Rail
Emergency
Release
Rope &
Handle