NIGHT VIEWER LATCH REPLACEMENT (Sheet 5 of 5)
For tighter latch assembly contact
viewer, back off (toward clevis) nu
two threads, using 1/2 inch wrench
Using 1/2 inch wrench, tighten nut
Perform steps 6 and 7. If more adj
necessary, do steps 9 thru 11 again
have a satisfactory fit.
CAU T I ON
H a ve a not he r pe rson support night
vie w e r a nd push re le a se le ve r w hile
pe rform ing t he follow ing st e p.
Attach scale to end of latch handle and
measure force to begin movement of handle. It
should be 9.5 to 15.5 pounds.
If force to begin movement of handle is less
than 9.5 pounds or more than 15.5 pounds,
replace spring (page 3-32.6).
End of Task