TM 5-5420-227-24
NIGHT VIEWER LATCH REPLACEMENT (Sheet 5 of 5)
For tighter latch assembly contact
10.
viewer, back off (toward clevis) nu
two threads, using 1/2 inch wrench
11.
Using 1/2 inch wrench, tighten nut
Perform steps 6 and 7. If more adj
12.
necessary, do steps 9 thru 11 again
have a satisfactory fit.
N
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
13.
RELEASE
measure force to begin movement of handle. It
LEV ER
should be 9.5 to 15.5 pounds.
If force to begin movement of handle is less
14.
than 9.5 pounds or more than 15.5 pounds,
End of Task
3-32.5
Change 1