5
Access
Door
Safety
Re
v
ersing Sensor
Safety
Re
v
ersing
Sensor
Gap
b
et
w
een floor
and
b
ottom of door
m
u
st not exceed 1/4" (6 mm).
Garage
Door
Header
W
all
Header
Bracket
Door
Bracket
Straight
Door
Arm
C
u
r
v
ed
Door Arm
Trolley
Emergency
Release
Rope &
Handle
Rail
Belt
Trolley Stop Bolt
CLOSED POSITION
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).
Safety Re
v
ersing Sensor
Access
Door
FI
N
ISHED CEILI
N
G
S
u
pport
b
racket
& fastening
hard
w
are is re
qu
ired.
See page 16.
Safety Re
v
ersing
Sensor
Header
W
all
Gap
b
et
w
een floor
and
b
ottom of door m
u
st not exceed 1/4" (6 mm).
W
all-mo
u
nted
Door Control
Rail
Motor Unit
ONE-PIECE DOOR WITHOUT TRACK
CLOSED POSITION
Header
W
all
Header
Bracket
Trolley
Straight
Door
Arm
Emergency
Release
Rope & Handle
Door Bracket
C
u
r
v
ed
Door
Arm
Garage
Door
Trolley Stop Bolt
Belt
Rail
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 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.
WARNING
CAUTION
WARNING
WARNING
ONE-PIECE DOOR WITH TRACK
