Why doesn't full rotation of the AD or CO Series Exit Trim (993) outside lever fully retract the Von Duprin 98/99 Exit Device latch?
- AD Series and CO series products require that the Night Latch (NL) screw is installed in the exit device. Be sure this screw is installed
- Exit hardware and strike must be properly mounted to ensure that the strike is NOT too close to the latch bolt when closed and that the trim can move the bolt past the strike to allow entry without mechanical interference
- Test the exit installation using the "Electronic Access" or trim input to retract the latch. Be advised, the mechanical key can retract the bolt further than the electronic access using the outside lever, so it is important to test for proper operation using the electronic access trim or Lever
- Von Duprin devices require the standard "Twisted Tailpiece" to provide as much bolt retraction as possible. Competitive devices will utilize the flat or "Straight" tailpiece provided from the factory
- Miss-adjusted exit devices or strike location could cause the bolt to hit the strike on entry. Customers then will pull hard on the trim lever and cause additional stress on the lever to gain access, Pulling hard on the lever can cause abusive forces on the lever and result in a crack at the base of the lever.
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