The ASGN 11 spacing lever (also referred to within the Sargent 11‑line lock series) is a specialized component used in cylindrical locksets. Though often overlooked in standard lever installations, proper spacing and configuration of the lever and handle mechanism directly affects function, durability, and safety. This guide delves into every aspect of working with the ASGN 11 lever—from tool requirements and physical spacing to handing, troubleshooting, and security considerations—based on official Sargent documentation and installation manuals.
1. Understanding the ASGN 11 Spacing Lever and Its Purpose
The ASGN 11 spacing lever system is part of the broader Sargent 11‑line cylindrical lock family, which includes models like 11G04, 11U65, and 11G24, primarily used in institutional and commercial settings. The spacing lever refers to the precise alignment and install gap required between lever handle, bearing assembly, and door plane for smooth operation and tamper resistance.
Correct spacing ensures the lever interfaces properly with the bearing assembly, this includes aligning the driver tips and cam orientation so the lever rotates cleanly and engages/disengages correctly. Misalignment can lead to premature failure, lever binding, or failure to latch or lock.
2. Preparing for Installation: Tools, Components, and Door Prep
Before installing the spacing lever, you must have all necessary components on hand and prep the door correctly.
Lever Handle Components and Set-Up
The ASGN 11 spacing lever kit includes both inside and outside lever handles, a bearing assembly, inner and outer sleeves, aligned collar, driver tips, and a 6-lobe security set screw. The driver tips must be aligned with painted markings before sleeve insertion. Proper alignment ensures internal cams and locking mechanisms engage correctly. The outside sleeve includes a captive collar, while the inside sleeve is fitted afterward, each featuring dimples that must face the door edge for proper orientation
Door Preparation and Drilling Templates
Follow the Sargent 11‑line drilling template for 2-1/8″ cross-bore and 1″ edge bore placements depending on the chosen backset (2‑3/4″, 3‑3/4″, or 5″). Doors must be beveled on the high edge, and the template folded accordingly. Mark jambs for striking plates and ensure latch strike recess is accurately cut to 1/8″ depth. A misaligned bore or incorrect fold may prevent proper lever spacing and cause binding or misfit
3. Installing the Lever and Achieving Correct Spacing
With preparation complete, the lever handle installation and spacing calibration are critical for smooth, secure operation.
Sleeve and Collar Alignment Procedure
Insert the outside sleeve first, ensuring the dimple-side faces the door edge. Thread the outside collar by hand, then tighten gently against the bearing assembly using a wrench—taking care not to cross-thread. Insert the inside sleeve next, again with its dimple facing the door edge, and thread the inside collar by hand before tightening. Proper alignment here maintains consistent spacing between lever and door, preventing wobble or misalignment under spray pressure
Lever Placement and Security Set Screw
Once sleeves are secured, remove the 6‑lobe set screw from the lever body and insert the outside lever until the lever catch engages. Rotate the tailpiece or cylinder until the lever catch locks into place, then re‑install the security set screw flush with the lever surface. This holds the lever firmly in place at the correct spacing. Repeat the process for the inside lever. Over-tightening can disrupt spacing or damage the lever assembly, so apply torque carefully
Cam Orientation and Lever Catch Locking
For locking functions, the lever cam must be oriented properly. For standard cylinders, the lever catch slot should be at approximately 45° to the latch tailpiece, allowing the catch button to lock and operate correctly. For specific functions (e.g. classroom, privacy, or office entry), follow the rotation steps to ensure the locking button or latch is positioned properly. Incorrect cam alignment can prevent the spacing lever from engaging or releasing as designed
4. Adjustments, Testing, and Troubleshooting
After initial installation, proper testing and fine-tuning ensure the spacing lever functions reliably across use cycles.
Post-Installation Function Testing
Test lever motion by rotating both inside and outside handles in both directions, ensuring smooth engagement without binding. Confirm the latch retracts and extends fully, and that locking functions (push-button or key operations) engage securely. If lever feel is stiff or catch does not lock correctly, re‑check spacing and alignment.
Correcting Spacing or Binding Issues
If the lever binds or feels loose, first confirm driver tip orientation: misaligned tips often cause excessive friction or play. If spacing seems incorrect even though orientation is correct, loosen and re‑tighten the sleeve collars by fractions of a turn to obtain proper clearance. Avoid uneven tightening that might mis-center the lever or distort spacing.
Function-Specific Troubleshooting
Different lock functions may require slight cam angle adjustments. For example, on classroom function 11G05 or utility 11G17, the lever catch button must face inward or outward depending on inside/outside orientation. If the lever feels “locked” even without keys, the cam may be rotated incorrectly. In such cases, rotate key or cam through 360° per instructions to reset alignment and spacing properly
5. Best Practices and Security Considerations
Ensuring correct spacing and continued performance involves adhering to security and maintenance best practices.
Proper use of the security set screw is essential; the proprietary 6-lobe screw resists tampering better than standard screws. Always replace it flush with lever surface—loose screws compromise spacing and weaken tamper resistance.
Choosing the correct lever function code (04, 05, 16, 17, 24, etc.) and ensuring each function’s driver tips are aligned before spacing lever install prevents mechanical mismatch. Never interchange parts across different function codes without checking factory guidance.
Perform periodic maintenance: check that sleeve collars remain tight, driver tips are aligned, and lever spacing has not shifted due to wear or environmental changes. Seasonal technician checks can catch slow binding or misalignment before lock failure.
Conclusion
The ASGN 11 spacing lever is a critical element in ensuring Sargent 11‑line cylindrical locks operate precisely, securely, and reliably. From pre-installation door prep to driver tip alignment, lever insertion, cam orientation, and testing, every step influences final lever spacing and function. Proper use of the 6-lobe set screw, attention to cam angle, and consistent sleeve alignment prevent misoperation, ensure lock longevity, and uphold tamper resistance.
By following these guidelines and referencing the official Sargent installation documentation and templates, locksmiths and building engineers can install ASGN 11 spacing levers with confidence and precision, ensuring security and performance standards are met.
FAQs about ASGN 11 Spacing Lever
1. What is the purpose of the driver tip alignment?
Driver tips must be aligned by color or marking before installation. This ensures the lever sleeve interfaces correctly with the internal cam and avoids misaligned spacing or binding
2. How do I choose the right function code and spacing lever?
The function code (e.g., 11G04, 11U65, 11G24) determines lock mechanics and spacing requirements. Use Sargent’s function index to match your application and spacing lever configuration.
3. What if the lever feels stiff or loose after installation?
Check driver tip alignment, sleeve collar tightness, and cam orientation. Minor torque adjustments to the collars usually resolve spacing issues.
4. Can I switch handing without replacing the lever?
Yes, lever handing can be changed by rotating the keyed cylinder 45° and then re-securing the lever. This is typical in keyed entry installations
5. Is the ASGN 11 lever standardized across all Sargent locks?
No, it belongs to the 11‑line family; spacing, parts, and installation steps vary with function code. Always reference the specific function installation guide.
