DOOR INSTALLATION
INSTRUCTIONS
Before installing your door, be certain that you have read and followed all of the instruc-
tions covered in the pre-installation section of this manual. Failure to do so may result in an
improperly installed door.
NOTE:
Reference TDS 160 for general garage door terminology at
www.dasma.com
.
IMPORTANT:
IF THE DOOR WILL BE EXPOSED TO A SIGNIFICANT AMOUNT OF ROAD SALT,
PAINT THE BARE GALVANIZED BOTTOM WEATHER STEEL RETAINER TO INHIBIT RUSTING.
Preparing Vertical Tracks
1
NOTE:
If you have a wall angle track assembly, skip this step.
NOTE:
Refer to Door Section Identification / Breakdown Of Parts, to determine if you have
vertical tracks.
Vertical tracks may or may not have to be cut to the proper length, prior to installing.
IMPORTANT:
VERTICAL TRACKS ARE NOT REQUIRED TO BE CUT DOWN IF YOU HAVE DOOR
HEIGHTS 7’-0” OR 8’-0”.
Determine the radius of your horizontal track.
12”
Horizontal
track
Stamped
radius
Refer to the vertical track cutting chart to determine the length needed to be cut off at the top
of the vertical tracks. Using this measurement, measure and cut the vertical track off at the
top, as shown. Remove any burrs from the cut edge of vertical track.
Vertical Track Cutting Chart
Horizontal Track Radius
Vertical Track Cut Length
10” Or 12” Radius
Door Height Minus 10”
14” Radius
Door Height Minus 8”
Vertical
track
Top of
track
Measure and cut
Now, two holes must be drilled into the top of the cut vertical track. Using the illustration
shown below, mark and drill the hole locations using a 5/16” drill bit. Once the holes have
been drilled, remove any burrs from the drilled holes. Repeat the same process for the other
vertical track.
Vertical
track
Measure and drill
5/16” Holes
5/8”
5/8”
1/2”
Attaching Flag Angles and Jamb Brackets To
Vertical Tracks
2
Hand tighten the left hand flag angle to the left hand vertical track using (2) 1/4” - 20 x 5/8”
carriage bolts and (2) 1/4” - 20 flange hex nuts.
NOTE:
The bottom jamb bracket is always the shortest bracket, while the center jamb
bracket is the next tallest. If three jamb brackets per side are included with your door, you will
have received a top jamb bracket, which is the tallest.
To attach the bottom jamb bracket, locate lower hole of the hole/ slot pattern of the 1st hole
set on the vertical track. Align the slot in the jamb bracket with the lower hole of the hole/ slot
pattern. Hand tighten jamb bracket using (1) 1/4” - 20 x 5/8” carriage bolt and (1) 1/4” - 20
flange hex nut.
Place the center jamb bracket over the lower hole of the hole/ slot pattern that is centered
between the bottom jamb bracket and flag angle of the 2nd hole set. Hand tighten jamb
bracket using (1) 1/4” - 20 x 5/8” carriage bolt and (1) 1/4” - 20 flange hex nut.
If a top jamb bracket was included, hand tighten it to vertical track using the lower hole of the
hole/ slot pattern in the 3rd hole set and (1) 1/4” - 20 x 5/8” carriage bolt and (1) 1/4” - 20
flange hex nut.
Left hand
vertical track
NOTE:
Loosely fasten components
together. Repeat the same
process for the right hand side.
Left hand
flag angle
Left hand
jamb bracket
Left hand
jamb bracket
3rd
Set
1st
Set
2nd
Set
1/4”-20 x 5/8”
Carriage bolts
1/4”-20 Flange
hex nuts
1/4”-20 x 5/8”
Carriage bolt
1/4”-20 Flange
hex nut
Bottom Weather Seal
3
NOTE:
Refer to door section identification, located in the pre-installation section of this
manual or refer to Breakdown Of Parts.
NOTE:
Verify that the bottom weather seal is aligned with bottom section. If needed, trim the
bottom weather seal even with bottom section length.
Position the bottom weather seal up against the bottom of the bottom section with the long
lip on the inside surface of the bottom section. From inside the door, attach the bottom
weather seal to the bottom section with 1/4” - 20 x 7/8” self drilling screws, placing one 6”
in from each end of the bottom section and one every 18” (maximum) in between, as shown.
Endcap
Bottom weather seal
1/4”-20 x 7/8” Self
drilling screws
Long lip
Inside
surface
of bottom
section
Inside surface of
bottom section
6”
18”
Endcap
18”
Attaching Bottom Corner Brackets
4
NOTE:
Refer to door section identification, located in the pre-installation section of this
manual or refer to Breakdown Of Parts.
Uncoil the counterbalance lift cables. Secure the cable loop to the clevis pin and bottom
corner bracket using a 5/16” flat washer and a cotter pin. Repeat for other bottom corner
bracket.
WARNING
ENSURE TIGHT FIT OF CABLE LOOP OVER PIN TO PREVENT
COUNTERBALANCE LIFT CABLE FROM COMING OFF THE PIN, WHICH
COULD ALLOW THE DOOR TO FALL AND RESULT IN SEVERE OR FATAL
INJURY.
Bottom weather seal
Cable loop
Bottom section
Cable loop
Bottom corner
bracket warning label
Bottom corner
bracket warning label
Counterbalance
lift cable
Counterbalance
lift cable
Position the left hand bottom corner bracket onto the bottom section. Attach the bottom
corner bracket to the bottom section with (3) 1/4” - 20 x 7/8” RED HEAD self drilling screws
and if applicable one more 1/4” - 20 x 7/8” self drilling screw. Repeat same process for the
right hand side.
IMPORTANT:
THE 1/4” - 20 X 7/8” RED HEAD SELF DRILLING SCREWS MUST BE MUST BE
INSTALLED THROUGH THE HOLES OF THE BOTTOM CORNER BRACKETS, AS SHOWN.
Insert a short stem track roller with a roller spacer (if applicable) into the bottom corner
7
Summary of Contents for 8300
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