3800 Series Mortise Lock - SectionalInstallation InstructionsI-LS00761DEVICES COVERED IN THIS DOCUMENT:3800 Series Mortise Lock - Sectional ModelOVERVIEWREV 3 Page 1 of 4STEP 1: PREPARE DOOR AND JAMBA. Mark lockset centerline of lever.i. Measure desired height from finished floor.ii. Mark centerline on both faces and edge of door.NOTE: If mortise for strike has already been made, measure 1-7/8” down from center of strike to locatecenter line of lever.CAUTION: The outside and inside of door may require different preparation. Use proper template foroutside (exterior or corridor) and inside of door.B. Mark trim drill points.i. Align centerline of door template with centerline marked on door edge.ii. Based on the function of the lock, mark position of drill points.Inside Lever or KnobInside RoseMounting ScrewsMounting ScrewsMounting ScrewsMounting ScrewsArmor FrontSpindleSpindleOuter Spring Insert AssemblyThru-boltsOutside RoseOutside Lever or KnobOutside CylinderInside CylinderCylinder TurnEmergency ButtonTurnpiece AssemblyInner Spring Insert AssemblyLock CaseStrikeStrike BoxSectional Coin Turn50, 53, 56, 73, 8165, 70, 76, 806362, 646057, 61, 66, 82, 8310, 7740, 4144, 451, 2, 3, 4, 5, 7, 10, 111, 2, 3, 4, 5, 7, 111, 2, 5, 6, 71, 2, 5, 71, 2, 5, 7, 101, 2, 3, 4, 5, 7, 111, 2, 3, 4, 7, 111, 2, 3, 4, 7, 8, 10, 111, 2, 3, 4, 7, 9, 10, 11FUNCTION INSTALLATION STEPSof LeverCLHeight Lineof Cylinderof LeverLCLC6 3/4"of Door Edgeof Cylinderof lever1" drill 4 1/2" deepCLCLCLC. Mortise door edge (for wood doors).i. Align template with centerline of door edge.ii. Mark and drill two (2) 1” diameter holes, 4-1/2” deep.iii. Remove remaining wood until the mortise is 1” wide, by 6-3/4” high, by 4-1/2” deep.