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GT20 8300-8350 Overhead Concealed Operator Installation Manual
www.NabcoEntrances.com
P/N C-00183
Rev 8-31-16
CHAPTER 7: INSTALL THE SWING DOOR (NOT PROVIDED BY NABCO)
Use (2) 3/8” Spacer Blocks with doors
that have 1-9/16” Web Depth.
DO NOT use the Spacer Block with
doors that have a Web Depth of 5/8”
1-9/16” Web Depth
CL
Side Spacers
Op onal usage of this bolt
on medium s le doors.
NOTES:
• Disregard the use of the 3/8” inch spacer block when installing
door tracks in doors with a web depth of 5/8”.
• The 5/8” x 1/16” side spacers should be installed on either side
of the track to insure proper centering of the track in the door
web. These side spacers may be le in the door or be removed
a er the track is securely in place.
• Use the 1/4-20 rivnuts for a aching the pivots and track to
door if the door web is not thick enough for suffi cient thread
engagement.
Installa on Instruc ons:
• Prepare Swing door as shown.
• Install (7) 1/4-20 rivnuts in the web located inside the Top Rail.
• Place the Track, which has been lubricated at the NABCO Factory
with lightweight grease, on top of the Spacer Block. Use the Side
Spacers where needed.
• Line up Screw holes with rivnuts.
• Secure the Track and Spacer Block (if used) with (7) 1/4-20 x
1-1/2” phillips fl at head screws.
DN 0756
DN 0133
Figure 23 Install the Track and Pivot Base