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 TM 55-1905-223-24-5
(3) Visually check for dirt, corrosion, or damage. Replace the shutoff valve assembly if any damage is
found.
(4) Replace valve assembly (FIGURE 3-9) as required.
b. Inspect the fluid pressure dampener (FIGURE 3-10).
(1) Visually check the body and plate for signs of damage.
(2) Replace the fluid pressure dampener if damaged.
c. Inspect the fuel pump gear (FIGURE 3-11).
(1) Visually inspect the shafts and spur gears (2). Replace the pump gear assembly if excessive wear,
or burrs, cracks, or broken-,gear teeth are found.
(2) Check the installed depth of the regulating fluid pressure valve (1) in the cover (5) faced The valve
must be even to 0.015 inch (0.38 mm) below the cover face. Seat the pressure valve as required.
d. Inspect the fluid filter element assembly (8, FIGURE 3-12).
NOTE
The filter element contains a magnet to hold any steel particles that may have
entered the fuel pump.
(1) Clean the metal parts of the fluid filter element (8) in solvent.
(2) After cleaning, visually inspect for metal particles in the mesh. Replace screen as necessary.
(3) Clean the machine thread plug(s) (5) and helical compression spring (7) in fuel oil and inspect for
signs of damage. Replace parts as necessary.
e. Check the governor actuator (2, FIGURE 3-12):
(1) Visually check for signs of damage and replace actuator as necessary.
(2) Discard old preformed packing (3, 4).
f. Check the fuel pump body for signs of damage. If damaged, replace the fuel pump assembly.
g. Check fuel tubing for signs for damage, replace if damaged.
3-22
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