Figure 4
Drill and tap three
#8-32 mounting
holes in door
2
Locate and install latch guard bracket with two #8-32 screws (Figure 2 and Figure 3).
Figure 3
Figure 2
Latch case
Latch
mounting
bracket
Tapped
holes
Latch guard
bracket
13/16” for Von Duprin 22, 33/35,
33A/35A, and 98/99 devices
15/16” for Von Duprin 88 devices
5”
Measure from center line of
latch
Use latch guard bracket as a
template for locating holes; drill
and tap door for #8-32 screws
Measure from bottom of
latch case
CL
3
Reinstall rod and adjust rods per device instructions.
4
Reinstall rod guide bushing, rod guide, center case cover, and latch cover.
5
Drill and tap door for #8-32 screws and install latch guard with five #8-32 screws (Figure 4).
