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“ qel vertical rod top latch not retracting ”

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What would keep the vertical rod exit devices top latch from being held retracted in the open position?
The following items may cause the exit devices top latch from being held in the retracted position. 1. The top or bottom rods are out of adjustment. 2. The top latch hold back...
Following exit devices 2227/F, 33/3527A/F, 33/3547A/48A/F, 98/9927/F and 98/9947/48/F have similar rod adjustment procedures. All top latches control the bottom latch assemblies. When do...
Why is my latch not retracting when I depress the push pad on an XP98/99 device?
  Pushing on the push  bar or activating the EL/QEL or the trim on Von Duprin XP98/99 exit device does not retract the latch, it releases the latch only. Door must be pushed or pulled when device o...
Why is the 2390 top latch not staying retracted when dogged?
Most likely need to length the top rod so latch can engage it's internal latch retention state. See 2390 Instructions for adjusting rod lengths.
What is the part number for the former F588 from Monarch?
The top latch for a Fire rated surface vertical rod device is part #650375-00 which replaced the old part #F588.
Can the Von Duprin EL or QEL conversion kit be used on an old style/obsoleted (pre 2003) 33 or 35 series vertical rod exit devices?
Yes, the current conversion kits will fit the old style/obsoleted 35 or 35 series vertical rod exit devices.
Why would the 996L trim not lock or unlock when installed with 98 or 99EO?
The 98/99 rim and vertical rod exit devices are shipped with NL drive screw to function as a Night Latch. To convert the device to Class Room, remove the NL Drive Screw on 98/99 center case ass...
What causes the top rod case to pull away from or strip out of the face of a steel door?
Hardware falling off a door is caused by one or all of the following issues: Field abuse Improper internal reinforcements in the door Improper field preparation The top or bottom rod case can...