TM 5-3895-383-24
Fuel System Secondary Filter - Replace (Lower Secondary
Filter Element)
SMCS Code:
1261-510-SE
Illustration 234
1.
Open the engine compartment.
Illustration 235
NOTE:
You must drain the secondary fuel filter element
(1) before the removal or the replacement of either
filter element.
2.
Place a suitable container under the valves (2) and (4).
Open the valve (2) in order to drain the upper secondary
fuel filter element (1). Immediately open the drain valve
(4) after opening the drain valve (2). This sequence
prevents an air lock in the fuel system.
NOTE:
Every new fuel filter has rotation index marks that
are spaced at 90 degree increments. Use the
rotation index marks as a guide for tightening the
oil filter.
3.
Slightly loosen the upper secondary fuel filter element
(1) by 90 degrees. As the filter is loosened, additional
fuel may drain. Loosen the filter by another 90 degrees,
and continue loosening the filter in 90 degree
increments until no fuel drains from the drain valves.
4.
Close the drain valves (2) and (4).
5.
If the upper secondary fuel filter element is not being
replaced, tighten the element. When the gasket
contacts the filter base, turn the filter by 270 degrees
more. This will tighten the filter sufficiently.
6.
Remove the lower secondary fuel filter element (3). Use
caution when you remove the element in order to avoid
spilling the fuel that is in the element.
NOTE:
The upper secondary fuel filter element and the
lower secondary fuel filter element are different
part numbers. Refer to the Operation and
Maintenance Manual, "Maintenance Parts List".
7.
Install a new lower secondary filter element. In order to
prevent contamination of the fuel system, do not fill the
element with fuel before you install the filter element.
When the gasket contacts the filter base, turn the filter
by 270 degrees more. This will tighten the filter
sufficiently.
8.
Prime the fuel system. See the Operation and
Maintenance Manual, "Fuel System - Prime".
9.
Start the engine and check for leaks.
10.
Close the engine compartment.
Maintenance Section
Fuel System Secondary Filter - Replace
1-102
