Adjusting Door Close Body

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The following steps are required to convert the Von Duprin 98/9975L from classroom to night latch function: Order new 996L-NL-M trim and reset NL drive screw in mortise lockbody as set from...
The minimum top and bottom butt hinge locations are as follows: To the hinge centerline: 4 1/2" and 5" hinges = 5 3/8" is the minimum location from top of door to centerline of the first hi...
The 4010 door closer is handed and they are not field reversible.
The 4011 can only mount on the Pull Side of the door and the 4111 can only mount on the Push Side of the door. Differences - The 4011 and the 4111 cylinders are different and the pinion shafts are...
Standard Doors: standard inverted bottom channels will accept the following manufactures automatic door bottoms: National Guard (320) Pemko (420) Zero International (355/354)
Special (custom) option: a special/optional end channel that will support the following manufactures: National Guard (422/423/522) Pemko (443) Zero International (360/364).
The part number is: 1461-3071 for the door closer cylinder body.
If the closer arm is touching the door, it is because the arm or the closer body is not templated correctly. Confirm dimensions are taken from the proper location and make corrections if needed. 
14" door leaf is the narrowest with standard template.
LCN does not supply Allen wrenches, the size that LCN uses, are standard sizes that every installer will have in their tool kit. 3/32" Allen wrench for adjusting regulation valves: main speed, lat...
A 4600 (4630/4640) not opening to a full 90 degrees could be caused by a couple things: The Opening Force could be set too low. Try increasing the opening force adjustment on the controller a 1/...
To correctly answer this question, we need to know how much more force is required to get the door closed. They could try turning the Rod & Shoe over (short side of shoe towards the hinge), or they...
 The correct method (process) for setting the hold open is: The 4010 hold open arms are handed, verify correct hand arm. (R or L stamped on main arm) Loosen the hold open nut. Opened the door ...
The 4210 and 4110 use the same door closer cylinder body. The 4210 is the security version of the 4110.
The 4041/4040XP and 4040SE closers cylinders are "NOT" the same. The 4041/4040XP cylinder has an adjustable size 1-6 spring. The 4040SE cylinder has an adjustable size 2-4 spring. The 4041/404...
First, turn off the power to the Senior Swing. If the door closes, check controller for a constant activation signal from an activation device. If door continues to hang up and will not close...
Yes, glass light can be used or prepped in conjunction with the Von Duprin 94/95 Series INPACT device however there are dimensional limitations between the glass light and the InPact door preparati...
Glass lights available: Standard Glass Lights - The N4, N5 & V lite can be used at standard locations with out any modification. Glass Light Options - Other glass lights are available but ...
The Von Duprin 7500 mortise lock body ships in the NL mode.  Either the function of 7500 lock body has not been changed to the Classroom function or the NL Drive screw is not all the way down. Step...
  Tips for changing the function: The NL Drive screw will not be visible when lock body is set to Classroom function There is locktite on the screw that makes it seem like its turned down enou...
You can reference the 7500 mortise lock rehanding instructions. Remove the two screws from mortise lock faceplate. Remove the face plate and the collar from the mortise lock then rotate the la...
Standard and Full Size I/C mortise cylinders on the L9485 and L9486, Hotel or Restroom Locks, use the concept of a ward ring to lock out all change keys once the deadbolt is thrown. Instead of a fu...
HANDINGA stop ring is installed on the right side for right hand operation and on the left side for left hand operation.  Right hand shown below.
Try the steps below to improve the hold open adjustment. Remove hold open nut  Apply a couple drops of blue loctite to the threads. Re-assemble, and reset hold open. Let loctite set up overn...