Getting Started
1–6
40H Series Service Manual
48H & 49H OVERVIEW
Lock
characteristics
All 48H & 49H Mortise Locks have the following characteristics:
Lock
dimensions
The following diagram shows the dimensions of the 48H & 49H mortise
case and strike.
Feature Dimensions
Case size
Backset
Door thickness range
4 3/16″ × 3 5/8″ × 1″
2 3/4″
1 3/4″ standard–up to 5″
†
†. All mortise functions, except R and trim one side only
functions, can be installed on 5″ thick doors if the mortise is
centered in
the door.
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