Schlage L283-139 Lock Case Field Reversible

Product Description

The SCHLAGE L283-139 is a field-reversible lock case designed for use with SCHLAGE L-series mortise locks. The lock case is the internal mechanical assembly that houses the latch and deadbolt components, translating handle and cylinder input into locking and latching action. This component is installed by licensed locksmiths, commercial door hardware specialists, and general contractors working on commercial or institutional door hardware applications. Field reversibility allows the handing of the lock to be changed on the job without returning the unit to the factory or ordering a separate handed component.

The L283-139 lock case is intended for use with SCHLAGE L9460, L9462, L9463, and L9464 mortise locksets. These are commercial-grade mortise locks commonly specified for office buildings, schools, healthcare facilities, and institutional applications where heavy-duty, code-compliant door hardware is required. The field-reversible design suits projects where door handing may be determined late in the construction process or where hardware must be adapted to existing conditions on site.

Key Features

• Field reversible - handing can be changed on site without special tooling or factory service
• Compatible with SCHLAGE L9460, L9462, L9463, and L9464 mortise locksets
• Designed as a direct internal mechanical assembly replacement within the L-series mortise body
• Suitable for commercial and institutional door hardware installations

Compatibility

Designed for use with SCHLAGE L9460, L9462, L9463, and L9464 mortise locksets as stated by the manufacturer.

Installation Notes

Installation and replacement of mortise lock cases should be performed by a qualified locksmith or commercial door hardware technician familiar with SCHLAGE L-series hardware. Remove all stored energy from the door closer and ensure the door is secured in an open position before disassembling the lockset. Consult the applicable SCHLAGE installation instructions for the specific lockset series before proceeding. Local building codes and accessibility standards such as ADA requirements may govern hardware selection and installation practices.