Alarm Lock S6148 Lever Return Spring

The Alarm Lock S6148 Lever Return Spring Kit is a service part engineered for the Trilogy T2 and T3 series cylindrical electronic locks models including DL2700, DL2800, DL3000, DL4100, PDL4100.

This kit restores correct lever return action when the lever feels loose or fails to spring back properly, ensuring smooth operation and maintaining the integrity of the lock’s mechanical performance.

Key Features:

• Designed specifically for Trilogy cylindrical lever locks (T2/T3 series).

• Simple retrofit: swap out the worn or bent spring inside the lock for a fast, cost-effective repair.

• Helps maintain Grade 1 mechanical reliability (as the original lockset) by correcting lever sag or slow return.

• Small, cost-effective part — avoids need to replace the entire lock when the lever return is the only issue.

Why it matters:

Over time, lever locks can suffer from wear, bushing slack, or spring fatigue, which can result in a lever that lags, doesn’t fully return, or feels sloppy. Replacing the lever return spring with the S6148 restores the lock to as-new mechanical action, preserving the user experience and the security function of the electronic lockset.