Service and Maintenance
40H Series Service Manual
6–5
CHANGING THE FUNCTION FOR UNIVERSAL CASES
Changing the
function for
UNR cases
This section provides in
structions for changing the function for the 45H
& 47H universal mortise cases (UNR, UNAB, and UNT). For information
about which inside and outside trim kits to use with each function, see
Working with trim kits
on page 2-3.
The UNR mortise case can be configured for any of the following
functions:
■ A
■ AT
■ D
■ INL
■ N
■ NX
■ R
To convert the UNR case from one function to another, you need to adjust
the shuttle screw positions and possibly the hub toggle positions.
To adjust the shuttle screw positions:
Refer to the table and guidelines below. Also, see Figure 6.4.
Note: To position the shuttle, insert a screwdriver into the opening for the
thumb turn hub and rotate the shuttle.
■
For an N function
, position the shuttle towards the face of the case and
move the shuttle screw from position 0, 2, or 3 to position 1. If
converting from an A function configuration, move the shuttle screw
from position 4 to position 5.
■
For a D, NX, or W function
, position the shuttle towards the back edge
of the case and move the shuttle screw from position 0, 1, or 2 to
position 3. If converting from an A function configuration, move the
shuttle screw from position 4 to position 5.
■
For an A function
, position the shuttle in the middle of the case and
move the shuttle screw from position 0, 1, 2, or 3 to position 4. Then
move the shuttle screw from position 5 to position 2.
Function Shuttle screw positions
A
AT, INL, R
D, NX, W
N
2 & 4
0 & 5
3 & 5
1 & 5
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