TM 5-5420-228-24
PERISCOPE MOUNT REPLACEMENT (Sheet 1 of 3)
PROCEDURE INDEX
I
PAGE
PROCEDURE
Removal
Cleaning and Inspection
Installation
TOOLS: Flat-tip screwdriver
Crocus cloth (Item 5, Appendix D)
SUPPLIES:
Steel wool (Item 16, Appendix D)
Pencil and paper (Items 22 and 23, Appendix D)
Bearing, teflon
Lockwashers (3 required)
TM 5-5420-202-10
REFERENCE:
PRELIMINARY PROCEDURE: Close hatch cover (TM 5-5420-202-10).
Early vehicles are equipped with infrared periscope
mount. Late vehicles are equipped with night
viewer mount.
REMOVAL:
Firmly support mounting plate (A) in position with one hand.
1.
With other hand, use screwdriver to remove three screws (B) and three lockwashers
2.
(C) from lower side of plate (A).
NOTE
Shims (E) are positioned on top of mounting plate (A). Keep
mount plate (A) as level as possible when removing.
With both hands firmly supporting mounting plate (A), lower mounting plate from
3.
cover (D).
4.
Remove shims (E) from upper side of plate (A). Record number of shims positioned
at each location for installation purposes.
TA251426
Go on to Sheet 2