Planning - Craftsman 139.53904D Owner's Manual

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.
• Dependingon 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 NOTexceed 1/4" (6 mm). Otherwise, the safety
reversal system may not work properly.
• The floor or the garage door MUST be repaired to eliminate
the gap.
ONE-PIECE DOORWITHOUTTRACK
FINISHED CEILING
Support bra(
& fastening
hardware is required.
See page 16.
rdf'l I
Safety Reversing Sensor
Header Wall
Rail
J
Access
Door
Safety Reversing
Gap between floor Sensor
Wall-mounted
Door Control
and bottom of door must not exceed 1/4" (6 ram).
Motor Unit
eader
,'all
CLOSED POSITION
Trolley Stop Bolt
Belt Trolley
Straight Door
Door
Arm
Arm
-- Garage
Door
Emergency
Release
Rope & Handle
ONE-PIECE DOORWITH TRACK
Jl__ Gapbteween floor Sensor
_._v .-\ and bottom of door
Safety
must not exceed 1/4" (6 mm).
Reversing Sensor
CLOSED POSITION
Trolley Stop Bolt Belt Trolley
Door
Bracket
Garage
Door
Straight
Door
Arm
Rail
Release
Rope &
Handle