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TM 10-4930-238-12&P
4-14. VALVE ASSEMBLY,
b. Cleaning.
BUTTERFLY - Continued.
Cleaning solvent is toxic and flammable. Use only in a well-ventilated area.
Avoid prolonged breathing of fumes. Keep solvent away from flames. Do not
use in excessive amounts. Avoid skin contact.
(1) Clean butterfly valve with cleaning solvent.
(2) Allow to dry.
c.
Inspect ion.
(1)
Inspect butterfly valve for damaged or missing dust cover and dust plug.
(2)
Inspect butterfly valve for damaged camlock levers.
(3) Check butterfly valve lever for ease of operation.
(4) Visually inspect seat disc shaft for wear or damage.
d. Repair. Repair is limited to replacing defective parts,
e.
Disa ssembly. (Refer to Figure 4–9.)
(1)
Remove screw (1), washer (2), and handle (3).
(2)
Remove two nuts (4), two Iockwashers (5), two bolts (6), and latch plate (7).
(3)
Remove two nuts (8), two Iockwashers (9), and two bolts (10).
(4)
Remove upper body half (11) and two spacers (12).
(5)
Remove lower body half (13), two pipe ends (14), and two bearings (15).
(6)
Remove disc shaft (16) and seat (17).
4-16
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