TM 9-2590-506-13&P
5-19. INTERNAL
VALVE
MAINTENANCE
INSTRUCTIONS (Continued)
(4) Install drain orifice (6), and orifice spring
(22) on piston shaft (8), aline holes in
drain orifice and piston shaft and install
limit pin (21) in holes.
(5) Lightly lubricate outside diameter of valve
piston assembly (17) and piston shaft (8)
with petrolatum (item 4, Appendix E).
(6) With valve body (10) positioned face down
on a clean, flat surface install valve piston
assembly (175 with parts (6, 8, 21 and
22), tubes (19 and 20) and screen
assembly (18) in valve body.
TA255044
5-36
