TM 5-5420-228-24
DRIVER'S HATCH NIGHT VIEWER LATCH REPAIR (Sheet 7 of 10)
13.
Place teflon washer (P) on shaft (F). Do not
install spacer (Q) at this time.
NOTE
Insert 1/8 inch punch in to
hole in flange of shaft (F). Push
back on punch against spring
pressure until hole in end of shaft
(F) is up and down. Have one
person hold punch while another
does step 14.
14. Place handle (M) on shaft (F), and insert 1/4
inch drill through handle and shaft to
temporarily retain handle.
15. Move shaft back and forth. Using feeler gage,
measure maximum looseness between handle
(M) and teflon washer (P). Record distance.
NOTE
Spacer is 0.094 inch thick, and
each lamination is 0.002 inch
thick.
16. Peel off laminations of spacer (Q) to provide a looseness (step 15) of between 0.005 inch and 0.040
inch.
NOTE
Material thickness which must be removed from 0.094 inch stock
spacer is found by subtracting required spacer size from 0.094
inch. Required spacer is found by:
A. Measuring space between teflon washer (P) and handle (M).
B. Subtracting 0.018 inch from space measured between teflon
washer (P) and handle (M).
Go on to Sheet 8
TA25773
3-276
