Issues with Honeywell manual pull stations

[shamsdebout]

I caught wind of this recently.

http://www.pullstationsafety.com/en-US/Pages/default.aspx

 

[MichaelGP3]

I caught wind of this recently.

http://www.pullstationsafety.com/en-US/Pages/default.aspx

Thanks for sharing the information. There are a lot of these installed out there.

There is another problem with the models that use a key to reset the pull station. If the thin hex nut that cinches down the lock cylinder becomes loose, the cylinder can rotate so that the closed latch is no longer parallel to the wall. The pull station appears to be closed and the loop may restore, but you now have some play in the switch. A truck driving by can vibrate the pull station enough to give you an alarm. Easy to check: you shouldn't feel any play in the cover after you've closed the pull station.

The models that use a hex bolt to restore the pull station can give a similar problem if that bolt is over torqued; the plastic collar that holds the bolt can crack, resulting in an alarm.

 

[shamsdebout]

Thanks for sharing the information. There are a lot of these installed out there.

There is another problem with the models that use a key to reset the pull station. If the thin hex nut that cinches down the lock cylinder becomes loose, the cylinder can rotate so that the closed latch is no longer parallel to the wall. The pull station appears to be closed and the loop may restore, but you now have some play in the switch. A truck driving by can vibrate the pull station enough to give you an alarm. Easy to check: you shouldn't feel any play in the cover after you've closed the pull station.

The models that use a hex bolt to restore the pull station can give a similar problem if that bolt is over torqued; the plastic collar that holds the bolt can crack, resulting in an alarm.

Thanks for the follow up.

I can only imagine how the users would be disturbed with false alarms.