Installation Preparation Door preparation: For door preparation use the template included in the package with the lock. For additional information, visit the website www.allegion.com/us. Tools for Install 3/32 Required: 3/32 Optional: IMPORTANT – DOOR THICKNESS This lock function is only compatible with 1-3/4” door thickness.
1 Install latch The bevel must face toward the door stop. Tighten the two (2) screws. L Note: For installation on unreinforced hollow metal doors, use of door spacer (part number 24483760) is recommended. Door stop Bevel...
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2 Install Indicator & Chassis Install on outside of door with slide opening aligned toward latch. If slide opening does not align with latch, refer to Chassis Handing section. Latch bar Slide opening Slide Latch prong Latch bar Chassis...
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3 Install anti-rotation plate Install on inside of door. Note that the inside push button can be adjusted depending on door thickness. The current displayed setting is for a 1-3/4” door. Align the tab with the indent on the hub. Inside push button Indent...
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4 Install outside spring cage assembly Lever catch faces door edge. L Note: The outside spring cage has mounting posts. Mounting posts Lever catch...
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5 Install inside spring cage assembly Lever catch faces door edge. Install and tighten two (2) mounting screws. L Note: The inside spring cage has holes for the screws. WARNING Do not overtighten the mounting screws. Lever catch...
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6 Install inside rose & lever Align dimple and groove. Rotate rose until it stops. Firmly push on lever until lever catch engages. L Note: The inside lever has a smaller hole than the outside lever. Groove Dimple L Note: A pin wrench may be required to depress the lever catch if mechanism is extra tight.
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7 Install indicator sign Place hole in indicator sign over hook on lever and confirm the sign is on housing ledges. Indicator sign will sit ontop of the ledges. Note: If there is trouble with sign staying on hook, push down on counterweight and hook will move upwards to assist with installation.
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8 Install escutcheon (1 of 2) Hook escutcheon tabs into baseplate notches. Escutcheon tabs Baseplate notches Baseplate slot...
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8 Install escutcheon (2 of 2) Pivot escutcheon against door. Tighten one (1) set screw into baseplate slot with hex key. Hook Set screw Pivot Hex key...
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Adjust the cam position (50/52/53/55 Only) Insert screwdriver into keycam and rotate clockwise until it stops. Correct cam position...
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Adjust the cam position (73 Only) A. From OUTSIDE, rotate key cam CCW until it stops. (approx. position after CCW rotation) B. Now, from OUTSIDE, rotate key cam CW to: Conventional Interchangable Core Cylinder Cylinder...
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10 Assemble outside trim (1 of 2) If not pre-assembled, snap the outside rose onto the outside spring cage and engage dimples. L Note that the outside spring cage is the one with the mounting posts. A. (KIL Cylinder Only) Place the cylinder assembly into the lever.
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10 Assemble outside trim (2 of 2) C. With key still rotated 90° clockwise, push outside lever onto the spindle. Be sure to engage the lever catch. Lever catch D. Rotate the key counterclockwise back to the starting position and remove the key. Rotate 90°...
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12 Complete Continue to next page to check lock function.
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Checking lock function (ND50/52) Push the inside button to lock the outside lever. Check that the outside lever is locked and that the Indicator sign raises to read “Locked.” Rotate the inside lever either direction to release the button and unlock the outside lever. Check that the outside lever is unlocked and the Indicator sign lowers to read “Unlocked.”...
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Checking lock function (ND53/55) (1 of 2) 1. Push the inside button to lock the outside lever. Check that the outside lever is locked and that the Indicator sign raises to read “Locked.” 2. Rotate the inside lever either direction to release the button and unlock the outside lever.
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Checking lock function (ND53/55) (2 of 2) 7. (ND53 only) Depress the latch to the faceplate. Check that outside lever remains locked and the indicator sign remains in the “Locked” position. (ND55 only) Depress the latch to the faceplate to release the inside button. Check that the outside lever is unlocked and the indicator sign lowers to read “Unlocked”.
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Checking lock function (ND73) (1 of 2) 1. Push the inside button to lock the outside lever. Check that the outside lever is locked and the indicator sign raises to read “Locked”. 2. Rotate the inside lever either direction to release the button and unlock the outside lever.
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Checking lock function (ND73) (2 of 2) 7. Depress the latch to the faceplate to release the inside button. Check that the indicator sign lowers to read “Unlocked”. 8. Push the inside button to relock the outside lever. Check that the outside lever is locked and that the indicator sign raises to read “Locked”.
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Chassis Handing (1 of 3) L Complete this step only if the slide opening does not align with the latch. A Use Phillips screwdriver to loosen and remove screw. B Separate the indicator assembly from the lock chassis. Slide Opening...
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Chassis Handing (2 of 3) C Rotate Chassis 180° to align slide opening towards latch. D Rotate both cams downwards. Chassis must be unlocked in order to rotate upper cam. The cams MUST be rotated down.
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Chassis Handing (3 of 3) E Reassemble chassis and indicator assembly. Tighten one (1) screw. F Confirm that the upper cam is engaged with the slider and lower cam is engaged in rectangular hole. Slider...
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