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DRIVER'S HATCH NIGHT VIEWER LATCH REPLACEMENT (Sheet 4 of 5)
DRIVER'S HATCH NIGHT VIEWER LATCH REPAIR (Sheet 1 of 10)

Launcher Hydraulics System M48A5/M60A1 Tank Chassis, Transporting: For Bridge, Armored-Vehicle-Launched; Scissoring Type, Class 60 Page Navigation
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TM 5-5420-228-24
DRIVER'S HATCH NIGHT VIEWER LATCH REPLACEMENT (Sheet 5 of 5)
For tighter latch assembly contact with night
10.
viewer, back off (toward clevis) nut (J) about
two threads, using 1/2 inch wrench.
11.
Using 1/2 inch wrench, tighten nut (H).
Perform steps 6 and 7. If more adjust
12.
necessary, do steps 9 thru 11 again un
have a satisfactory fit.
CAUTION
Have another person support night
viewer and push release lever while
performing the following step.
Attach scale to end of latch handle an
13.
measure force to begin movement of handle.
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,
replace spring (page 3-273).
TA251766
End of Task
3-269






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