TM 9-2590-506-13&P
5-20.
PILOT
ASSEMBLY
MAINTENANCE
INSTRUCTIONS (Continued)
d. Inspection.
(1) Cover (2). Inspect cover as follows:
(a) Flat surface that mates with
diaphragm (4) shall not have any
scratches, nicks, scoring or other
damage.
(b) Circumference of radial surface that
mates with diaphragm (4) shall not
have any scratches, nicks, scoring
or other damage.
(2) Base (3). Surface that mates with poppet
(6) shall not have any scratches, nicks,
scoring or other damage.
(3) Diaphragm (4). Diaphragm shall not have
any tears, cuts, breaks or deterioration.
(4) Poppet (6). Spherical surface that mates
with base (3) shall not have any
scratches, nicks, scoring or other damage.
(5) Spring (8). Inspect spring as follows:
(a) There
shall
be
no
kinks,
deformation, or permanent set.
(b) If free length is not 0.75 0.15 inch,
discard spring.
e. Repair. Repair is limited to replacement of
defective parts.
f. Assembly.
(1) Install poppet (6) in base (3) and install
spring (8) and backup (7) over poppet
stem.
(2) Install retaining ring (5) in groove of
poppet (6).
TA255050
5-42
