.INSTALLATION
30
'4' : 0
Raise door until top section reaches its highest
arc
of
travel.
Mark header on center line
at
point where level touches
header.
DOOR
OPENING
CARPENTERS
LEVEL
HIGH
ARC
OF
DOOR
TRAVEL
DOOR
TRACK
DOOR
SECTIONS
IT
IS
RECOMMENDED
THAT
OPERATOR
BE
MOUNTED
A
MINIMUM
OF
7
FEET
ABOVE
FLOOR.
50
Mark horizontal center line
of
header
bracket.
HEADER
CENTERLINE OF
HEADER BRACKET
CEILING
DOOR
40
Mark horizontal
center
line
of
header bracket
1-5/8"
minimum to
3-1/4"
maximum
above high
arc
of
door
travel.
Use
lowest figure permitted
by door
counterbalance.
HIGH ARC
OF
DOOR
TRAVEL
2-1/4"
minimum headroom required above
high arc
pf
door travel
for
3
piece
boom.
2" minimum headroom required for solid boom.
60
Position
header
bracket
on
center
line and
mark mounting hole locations on
center
line.
CEILING
HEADER
CENTERLINE OF
HEADERBRAC~~r~-,...L.-..~~Tt:-7<--
Page
6
-
~
To Next Page
Loading...
