2 2 B B
F F F F O O R R R R T T R R A A C C K K L L E E E E S S S S S D D D O O O O R R S S
. . . . . .
WARNING
Do Not try to remove, repair or adjust springs or
•
anything to which door spring parts are fastened,
such as, wood blocks, steel brackets, cables or
other like items.
Repairs and adjustments must be made by a
trained service person using proper tools
and instructions.
Handles and other door projections can catch
•
clothing. Remove ropes, hooks, hangers,
decorative or security items mounted to door.
Be sure emergency release cord does not catch
•
on roof carrier or other vehicle parts.
1. Establish center line of door and header (Fig. 2-9).
Close door.
•
Measure door width. Mark center.
•
Use straight edge to draw vertical line
•
down door about 6.
–
on top of door.
–
up header about 20
–
2. Determine door rise (Fig. 2-10).
Open door to highest point of travel.
•
Measure distance from top of door to floor.
•
Subtract the actual height of door. The remainder
•
is the door rise in inches as shown in TABLE A.
TABLE A
Door rise
Locate header bracket above
in inches
Up to 4
"
4
to 8
"
"
8
to 12
"
"
3. Locate header bracket (Fig. 2-9).
Use TABLE A to determine header
•
bracket position.
Draw horizontal line
•
this point.
CAUTION
Header bracket must be fastened to garage
framing. Do Not fasten to drywall, particle board,
plaster or other such materials.
4. Install header bracket (Fig. 2-11).
Place header bracket so,
•
center hole is on line
–
all holes are on line
–
Mark hole positions (
•
Drill 5/32
holes at marked positions.
•
"
Fasten header bracket to header with two (2)
•
lag screws [ 79 ] .
1/4
x 2
"
"
V.
"
"
"
.
"
top edge of CLOSED door
Up to 10
"
10
to 15
"
"
15
to 20
"
"
H
across line
H
at
"
"
"
"
V.
"
"
H.
"
"
A
and
B
).
"
"
"
"
Line
V
"
"
(Vertical centerline of door)
Door header
Line
H
"
"
Inside of door
Fig. 2-9
Highest point
of travel
Door rise
Floor
Fig. 2-10
Line
V
"
"
A
"
"
Line
H
"
"
Vertical centerline
of door
Fig. 2-11
See
TABLE A
Top of door
Highest point
Door rise
of travel
Floor
B
"
"
Header bracket
[ 79 ]
Lag screws
15