TM 5-3820-233-12/1
b. Filter Element Removal. Refer to figure 3-1 and
(2) Check for proper position of element seat.
(3) Inspect cover assembly for cracks.
remove the secondary fuel filter element as follows:
d. Filter Element Replacement.
(1) Drain the fuel filter.
(1) Place a new filter element over the stud and
(2) Unscrew cover bolt and remove shell and
down against the seat. Make sure the drain cock is
element.
closed; then, fill the shell two-thirds full with clean fuel oil.
(3) Remove and discard the element, the shell
(2) Install new shell gasket.
gasket, and cover bolt gasket.
c. Cleaning and Inspection.
(3) Place shell and element in position under the
cover. Use a new gasket over the cover bolt and thread
(1) Wash the shell thoroughly with fuel oil and dry.
bolt into the stud.
(2) Check for proper position of element seat and
(4) With the shell and gasket in position, tighten the
retaining ring.
cover bolt to prevent leakage.
(3) Examine the filter retaining seal for hardening
(5) Start the engine and check for fuel leakage.
and cracking.
d. Filter Element Replacement.
3-7. Full-Flow Oil Filter Element
(1) Place a new element over the stud and down
a. General. The full flow oil filter element should be
against the seat. Make sure the drain cock is closed;
changed every time the engine oil is changed. Heavy
then, fill the shell two-thirds full with clean fuel oil.
sludge deposits on the element at time of oil change
(2) Install a new gasket in the recess of the shell.
indicates oil drain interval should be shortened. The full-
(3) Place shell and element in position under the
flow filter is located on the base of the crankcase.
cover. Use a new gasket over the cover bolt and thread
b. Filter Element Removal. Refer to figure 3-2A and
bolt into the stud.
remove the full-flow filter element. Discard the element
(4) With the shell and gasket in position, tighten the
and seals.
cover bolt to prevent fuel leakage.
c. Cleaning and Inspection.
(5) Remove filler plug and fill shell with fuel.
(1) Wash the shell thoroughly with fuel oil and dry.
(6) Start the engine and check for fuel system leaks.
(2) Inspect the shell for cracks or damage.
3-6. Primary Fuel Filter Element
(3) Inspect the shell adaptor base for cracks.
a. General. The primary fuel filter is located directly
d. Filter Element Replacement.
above the secondary fuel filter.
(1) Install a new element over the stud into the shell.
b. Filter Element Removal. Refer to figure 3-1 and
(2) Install a new gasket in the recess of the shell
remove the primary fuel filter element as follows:
adaptor base.
(1) Drain the fuel filter.
(3) Place shell and element in position with adaptor
(2) Unscrew cover bolt and remove the filter shell
base.
and element.
(4) With shell and element in position, tighten the
(3) Remove and discard the element, the shell
stud to prevent oil leakage.
gasket and the cover bolt gasket.
(5) Start the engine and check for oil leakage.
c. Cleaning and Inspection.
(1) Wash the shell thoroughly with fuel oil and dry.
3-4
