4.3.1
First ......
Establish the centre-point of the
door. Mark-off the centre point along the top
rail.
4.3.2
Next .....
Draw a vertical line on the wall
above the door at the centre-point position.
4.3.3
Then .....
Slowly raise the door taking note
of the highest position reached by the door
as it moves to the
"full-open"
position.
Note:-
Sectional Doors rise above
their "closed" positions as
they open.
4.3.4
Measure the height above the floor of the
"high-rise point"
of the door. This
measurement is necessary in order to
establish the position of the
Header
Anchor Bracket.
4.3.5
Make a mark on the wall corresponding to
the
"high-rise point"
of the door. The
Header Anchor Bracket
is fixed above this
mark.
4.3.6
Position the
Header Anchor Bracket,
on
the wall in such a way that the right angle
face of the bracket coincides with the
centre-line mark of the door.
4.3.7
Mark the positions for the fixing screws and
drill
10
mm dia. holes approximately
100
mm
deep. Insert the
2
"Green" plastic wall plugs
into the holes and fix the Header Anchor
Bracket in place using the two
M 8 x 90
mm
Hex-head Washer-faced Lag Screws
supplied.
Note:-
It is very important that the Header
Anchor Bracket is well secured as
this fixture takes all the forces
acting in the system.
Fig. 19
Spirit Level
Wall Header
Anchor Bracket
"High-Rise"
Point of Door
Wall
M 8 x 90 Hex-Head
Coach Screws
Wall Anchor
Bracket
Fig. 20
Centre Line
of Door
"High-rise"
Level of Door
8
0
-
1
3
0
m
m
8
0
-
1
3
0
m
m
door operator installation manual"
page 11
Copyright C 1987 / 1990 / 1999 / 2001
SECTION 4.3
Installation Procedures For
SECTIONAL DOORS
i n d u s t r i e s
