Yale
®
Commercial Solutions
61
Troubleshooting Guide
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1. Many problems with the operation of
exit devices are caused by factors
other than the device itself. Among the
most common is a misalignment or
an improper fit of the door within the
frame.
2. Another common source of problems
is improper installation. Even if all
cutouts and screw holes are properly
located, exit devices must be se-
curely fastened to properly reinforced
doors. Hollow doors and frames with
a structural thickness (metal skin plus
reinforcement, or solid hardwood)
must have at least three full screw
threads to be considered reinforced.
3. Most problems with dogging occur
on vertical rod devices. When the dog-
ging function is hard to engage or will
not work at all, the rods may be incor-
rectly adjusted allowing the mechanism
to bottom out. Re-adjust rods per the
device instructions or as outlined on the
previous pages.