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6400 Narrow Device 6C03 – Cylinder Only
Installation Instruction Phone: 833-2-PDQTEC | www.pdqlocks.com
639420 Rev0 – 06/13/22
1. SIZE CYLINDER TAILPIECE
Cut cylinder/housing tailpiece to extend
5/16" past inside door face when
installed.
2. SHORTEN SCREWS
Locate screws included with Rim Cylinder /
Housing
Shorten at appropriate machined break-off
length for door thickness
3. ATTACH CYLINDER TO
DOOR
Attach cylinder to door with mounting
plate as shown. Be careful not to over
tighten mounting plate screws.
Continue exit device installation as
shown in device instruction.
5/16"
Cylinder Oriented
Horizontally