Craftsman 139.18451D Manuel Du Propriétaire 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 11.
• Depending on 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 SERIOUSLYINJURED
or KILLED by 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 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
hardwareisrequired.
See page 16.
dr1 I
Safety Reversing Sensor
Header Wall
Rail
Slack in chain tension
is normal when garage
door is closed.
J
Access
Door
O
Wall-mounted
Door Control
Safety Reversing
Sensor
Gap between floor
and bottom of door must not exceed 1/4" (6 mm).
_eader
Vail
Motor Unit
CLOSED POSITION
Trolley Stop Bolt Cable
I
Straight Curved
Door Door
Arm Arm
Garage Door
Trolley
Emergency
Release
Rope & Handle
ONE-PIECE DOOR WITH TRACK
Reversing
Gap between floor Sensor
_-_ and bottom of door
Safety must not exceed 1/4" (6 mm).
Reversing Sensor
CLOSED POSITION
Trolley Stop Bolt Cable Chain
Header Curved
Bracket Door Arr_ / L-- r Rail
oooooo,ooooo) _ I
-_-
I
" - I Emergency
£ou,. straioht I Release
_racKet Door y''' _-_ Rope &
/_//2"_ Garage Arm _ Handle
://A Door