TM 9-2590-506-13&P
5-19. INTERNAL
VALVE
MAINTENANCE
INSTRUCTIONS (Continued)
(7) Install piston spring (16) in valve body
(10).
(8) Position shaft seals (13) back-to-back and
insert them in valve cap (3) and secure
with retaining ring (12) in groove of valve
cap.
(9) With valve body (10) positioned f ce down
a
on a clean, flat surface, carefully lower
valve cap (3) onto piston shaft (8) making
sure tube (20) is alined with its mating
hole in cap.
(10) While
applying
sufficient
force
to
compress piston spring (16), start screws
(9) into their respective holes. Uniformly
tighten screws to 22 to 30 pound-inches.
5-37