Detex V50 EE - Manual (Page 12)

104832 Page 12
TOP LATCH TESTING AND ADJUSTMENT
1. Close the door. The holdback lever should engage the backside of the strike, allowing the latchbolt to extend. The
device should latch securely and latchbolt should fully project into the strike cavity.
2. Press the pushpad. The latchbolt should retract fully and smoothly from the strike as the door opens.
3. Release the pushpad. The latchbolt should remain retracted until the door is closed.
4. Once the latchbolt operation has been evaluated, the strike should be checked and adjusted to allow the door to
be held snug to the frame but allow free movement of the latchbolt during normal operation. When the appropriate
position has been set. A third hole should be marked, drilled and tapped for a #10 machine or use a #10 self drilling screw.
Lock the strike in position with this third screw. (See Fig. 5C)
NOTE: For centerline heights significantly higher or lower than the recommended 40", it may be necessary to use shorter or
longer adjustment hexbolts in the rods to effect appropriate adjustment. For some door heights it maybe necessary to cut the
rod. Be sure to cut the un-threaded end. If this is done, we recommend rod covers be used to prevent exposed bolt threads.
TROUBLESHOOTING
1. Latchbolt does not completely relatch when closing the door
Loosen the strike screws and adjust the strike to allow the latchbolt to completely extend into the strike.
Tighten the screws and add the third center screw to lock the strike in place.
2. Latchbolt fails to retract when pushpad is pushed
Check centercase assembly and verify that the link is attached to the TOP post of the centerlift assembly (see Fig. 8A),
or shorten top rod by rotating bolt. Relock bolt into carriage.
3. Latchbolt is slow or does not completely extend when door closes.
Check rod adjustment (Fig 10).
Check centercase, verify that the 1/4-20 x 1/4" screws have been installed (See Fig. 8A).
Verify top latch bolt is in
fully extended position.
Rotate bolt for rod height
adjustment. Head of bolt
should drop freely into slot
in carriage.
TOP ROD ONLY (TRO)
ADJUSTMENT / TROUBLESHOOTING
FIG. 10
Lock Bolt head
firmly in place in
Carriage with plate,
starwasher and screw.
(As shown in detail)
FIG. 10 - Detail
TOP ROD INSTALLATION (CONT.)