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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).
ONE-PIECE DOOR WITHOUT TRACK
Without a properly working 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 fl oor MUST NOT exceed 1/4" (6 mm).
Otherwise, the safety reversal system may NOT
work properly.
• The fl oor or the garage door MUST be repaired to
eliminate the gap.
ONE-PIECE DOOR WITH TRACK
FINISHED CEILING
Support bracket & fastening
hardware is required.
See page 15.
Wall-mounted
Door Control
Motor Unit
Access
Door
Gap between fl oor and
bottom of door must not exceed 1/4" (6 mm).
Gap between fl oor and
bottom of door must
not exceed 1/4" (6 mm).
Safety
Reversing Sensor
Safety
Reversing Sensor
Safety
Reversing Sensor
Safety Reversing
Sensor
Header Wall
Rail
Slack in chain tension
is normal when garage
door is closed.
CLOSED POSITION
Emergency
Release
Rope &
Handle
Emergency
Release
Rope &
Handle
Header
Bracket
Header
Bracket
Straight Door
Arm
Straight Door
Arm
Curved
Door
Arm
Curved
Door Arm
Garage Door
Garage
Door
Door Bracket
Door
Bracket
Header
Wall
Header
Wall
Cable
Cable
Rail
Rail
Trolley
Stop Bolt
Trolley
Stop Bolt
Trolley
CLOSED POSITION
Chain