Wayne-Dalton 7400 Series Installation Instructions And Owner's Manual page 8

FOR BOTTOM SECTION, WITH FACTORY INSTALLED THREADS: Attach the bottom corner
bracket to the bottom section using (3) 1/4" - 20 x 1-3/8" RED HEAD bolts, as shown. Repeat
the same process for the right hand side.
IMPORTANT: THE 1/4" - 20 X 1-3/8" RED HEAD BOLTS MUST BE MUST BE INSTALLED ON
THE BOTTOM CORNER BRACKETS, AS SHOWN.
(4) 1/4" - 20 x 3"
Carriage bolts
(1) 1/4" - 20
Flange hex nut
(3) 1/4" - 20 Flange hex
nuts (RED HEAD)
NOTE: For bigger bottom corner brackets, mark and pre-drill 9/32" diameter holes through
the bottom section. Attach the bottom corner bracket to the bottom section using (4) 1/4" -
20 x 3" carriage bolts and 1/4" - 20 flange hex nuts. Repeat the same process for the right
hand side.
(4) 1/4" - 20
Flange hex nuts
(7) 1/4" - 20 x 3"
Carriage bolts
(3) 1/4" - 20 Flange hex
nuts (RED HEAD)
4
Attaching Track Roller Carrier's
NOTE: If you don't have track roller carriers, then skip this step. Refer to Package Contents /
Breakdown of Parts, to determine if a track roller carrier was supplied with your door.
NOTE: If your door came with two track roller carriers, then one track roller carrier, short
stem track roller and spacer are required for each side.
NOTE: If your door came with four track roller carriers, then two track roller carriers, long
stem track roller and spacer are required for each side.
Starting on left hand side of the bottom section, position the track roller carrier with the
stamp "STD" facing UP to the bottom corner bracket and aligning the four holes of the track
roller carrier with the four holes in the bottom corner bracket. Secure the track roller carrier
to the bottom corner bracket with (4) 1/4" - 14 x 1" lag screws.
NOTE: Prior to fastening the track roller carrier to the bottom section, pilot drill using a 1/8"
drill bit.
IMPORTANT: BE EXTREMELY CAREFUL NOT TO DRILL THRU THE SECTION. ONLY DRILL 1"
DEEP.
Repeat the same process for other track roller carrier(s). Insert the appropriate stem track
roller and spacer into the inner holes of the track roller carrier(s).
NOTE: The track roller carrier's inner holes are used on doors with 2" track applications; the
outer holes are used on doors with 3" track applications.
Typical bottom
corner bracket
"STD"
facing UP
Spacer
Short stem
track roller
Bottom section
Bottom
weather seal
For factory installed threads:
(3) 1/4" - 20 x 1-3/8" Bolts
(RED HEAD)
Left hand bottom
corner bracket
Bottom
section
Typical left
hand bottom
corner bracket
Bottom
weather seal
For factory installed threads:
(3) 1/4" - 20 x 1-3/8" Bolts
(RED HEAD)
Track roller
carrier
(4) 1/4"-14 x 1"
Lag screws
"STD"
facing
UP
Spacer
Long stem
track roller
Side view of track roller
carrier(s)
5
Attaching Hinges and Strut To Bottom Section
Lay a SHORT STRUT onto the bottom rail of the bottom section. Position the bottom of the
strut 3/4" up from the bottom edge of the bottom section. Center the short strut from side
to side on the section surface. Drill pilot holes, 1" deep into the bottom section using a 1/8"
drill bit.
IMPORTANT: BE EXTREMELY CAREFUL NOT TO DRILL THRU THE SECTION. ONLY DRILL 1"
DEEP.
Attach the strut using (1) 1/4" - 14 x 1" lag screw at each pre-drilled hole.
Bottom corner
bracket
NOTE: Refer to the Graduated End Hinge Schedule below, to determine the appropriate
hinges for your bottom section.
Graduated End Hinge Schedule
Door Height Section Type
3 Section High Door Bottom
4 Section High Door
5 Section High Door
NOTE: Center hinge(s) use #1 graduated end hinges at each pre-drilled or vertical stile loca-
tion. The pre-drilled locations are located at the top rails on the inside of the section surface.
NOTE: Measure the height of the long strut(s) to determine if you have 2" or 3".
NOTE: Some struts also may or may not have holes in them. If they don't, then prior to
installing the strut and hinge to the section surface, you may have to drill a 3/16" hole for the
appropriate fastener on one or both sides of the strut legs.
Using the appropriate graduated end hinges for the ends and depending on the width of your
door, enough center hinge(s) for each pre-drilled hole location(s). Starting at the upper left
hand corner of the bottom section. Position the lower hinge leaf of the appropriate graduated
end hinge onto the upper corner of the bottom section. Align the slots of the lower hinge leaf
with the pre-drilled holes or with the factory installed threads in the bottom section.
NOTE: If you have strut clips, ensure the strut clip is positioned on the hinge, as shown.
FOR GRADUATED END HINGES:
IF YOU HAVE 2" LONG STRUTS: Lay the leg of the long strut over the bottom hole of the
lower hinge leaf and the bottom section. Center the long strut from side to side. Attach the
upper slot of the graduated end hinge to the bottom section using (1) 1/4" - 20 x 3" carriage
bolt and (1) 1/4" - 20 flange hex nut or (1) 1/4" - 20 x 1-3/8" bolt. Next attach the bottom
hole of the graduated end hinge to the upper leg of the strut to the bottom section using (1)
1/4" - 20 x 3" carriage bolt and (1) 1/4" - 20 flange hex nut or (1) 1/4" - 20 x 1-3/8" bolt.
8
Typical bottom
corner bracket
(2) Track roller
carriers
(8) 1/4"-14 x 1"
Lag screws
Outer holes
(3" Track)
Inner holes
(2" Track)
Approximately
30" on centers
Bottom
section
1/4" - 14 x 1"
3/4"
Lag screws
Track Graduated End Hinge
Number
2"
3"
2"
3"
2"
3"
SHORT
STRUT
#2
#4
#1
#3
#1
#3