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GT 300-350-8300-8350 Opus Overhead Concealed Swing Door Installation Manual
www.NabcoEntrances.com
P/N C-00175
Rev 5-23-18
SECTION 11 .2: Insert the Base Pivot into the Bottom Door Rail
1. Lay the Swing door onto a flat surface that is sturdy enough to keep the door stable, and high enough to see while drilling.
2. Go to the Bottom Rail on the Pivot side of Swing Door. Measure to find the center inside the Web. Mark a horizontal line all
the way across the full width of the Web face.
3. From the outer edge of the Pivot Stile measure: With the Finger Guard; 3-5/8 inches. Without the Finger Guard; 2-5/8 inches.
4. Mark a vertical line across the horizontal line onto the Web face. This is the center of the Bearing.
5. From the center of the Bearing mark, measure another 3-1/4 inches. Mark a vertical line across the horizontal line onto the
Web face. This is the center of the second .322 diameter anchor hole.
6. Obtain (1) Spacer. Center the Spacer inside the Web. Align the second screw hole to the second anchor hole marked onto the
Web face.
7. Use the Spacer as a template to mark the remaining (3) anchor holes. Ensure the Spacer is aligned and centered. Drill
(4) .322 anchor holes.
8. Countersink the (4) anchor holes to .53 diameter x 82 degrees.
9. Insert (4) 1/4-20 tapped Rivnuts into the (4) .322 anchor holes.
10. Obtain the Base Pivot assembly. Place (1-4) Spacers on the bottom side of the Pivot Base.
a. The Gel filled Bearing is located on the top side of the Pivot Base.
11. Insert the Pivot Base assembly up into the Web. Add/subtract spacers until the Base Pivot is flush to the outside edge of the
Door Rail. Secure the Pivot Base to the Web with (4) 1/4 - 20 x 2 inch Phillips Head Machine Screws.
DN 0755
Hinge Jamb
Swing Door
Riv Nuts
Spacers
Pivot Base
Philips Head Machine Screws
Ball Bearing
Pivot Sha
Door Web
Bo om Rail
Figure 44 Base Pivot Assembly
SECTION 11 .3: Partially Install the Arm Track into the Top Door Rail
1. Lay the Swing door on a flat surface that is sturdy enough to keep the door stable, and high enough to see while drilling.
2. Go to the Top Rail on the Pivot side of Swing Door. Measure to find the center inside the Web. Mark a horizontal line all the
way across the full width of the Web face.
3. From the outer edge of the Pivot Stile measure 23-13/16 inches. Mark a vertical line across the horizontal line onto the Web
Face. This is the center of (1) .322 anchor hole.
4. Drill (1) .322 anchor hole.
5. Countersink the anchor hole to .53 diameter x 82 degrees.It is recommended to drill tap threads for anchors in a steel or
aluminum structure.
6. Insert (1) 1/4-20 tapped Rivnut into the .322 anchor hole.
7. Obtain the Arm Track Assembly. Place (1) Spacer Block inside the Web according to the Web Depth:
X
5/8 inch deep: No Spacer Block is required
X
7/8 inch deep: Insert 1/4 inch Spacer Block
X
1 inch deep: Insert 3/8 inch Spacer Block
X
1-9/16 inch deep: Insert (2) 3/8 inch Spacer Blocks