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 TM 55-1905-221-14-2
5-17. FUEL PUMP (Continued).
LOCATION/ITEM
ACTION
REMARKS
ASSEMBLY (Cont)
c. Clamp the pump body in the
Tighten plug to
soft jaws of a bench vise
18-24 lb-ft
with the valve cavity up.
(24-33 Nm)
Lubricate the outside dia-
meter of the valve (18), and
place the valve in the cavity
with the hollow end up.
Insert the spring (16) inside
the valve, and the pin (17)
inside the spring. With a
new gasket (15) in place next
to the head of the valve plug,
place the plug (14) over the
spring and thread it into the
pump body. Tighten plug (14).
d. Install the fuel pump drive
gear (9) over the end of the
drive shaft (8) which is not
squared (so the slot in the
gear will face the plain end
of the shaft when installed).
This operation is very impor-
tant; otherwise fine score
marks caused by pressing the
gear into position from the
square end of the shaft may
cause rapid wear of the oil
seals. Press the gear (9)
beyond the gear retaining
ball detent (22). Then,
place the ball (10) in the
detent and press the gear
back until the end of the
slot contacts the ball.
e. Lubricate the pump shaft and
insert the square end of the
shaft into the opening at the
gear side of the pump body
and through the oil seals.
5-394
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