TM 9-1240-401-34&P
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4-21. COUNTER BOX ASSEMBLY (COUNTERS) MAINTENANCE INSTRUCTIONS
- continued
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a. Disassembly
1
Remove four machine screws (1) and four lock-
washers (2). Discard Iockwashers.
2
Remove cover (3) with related parts from counter
box assembly (4).
3
Remove two headless straight pins (5) only if nec-
essary.
4
Remove plug (6) only if necessary for replacement.
NOTE
New counter box assemblies are tapped and
do not require nut (7).
5 Remove air valve cap (8), valve core (9), nut (7),
purging valve stem (10), and retaining strap(11 ).
6 Remove four machine screws(12) and four lock-
washers (13). Discard Iockwashers.
7 Remove base(14) and related parts from cover
(3).
8 Remove setscrew(15) and plug (16).
9 Drive out headless straight pin (17) and remove
collar (18) and worm setscrew (19).
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