TM 5-3825-225-14&P
Figure 4-13. Fuel Filters.
Figure 4-14. Primary Fuel Filter
(2) Operate the fuel pump priming lever (see Figure 4-15) until fuel, free of air bubbles, flows from the
primary fuel filter vent.
(3) Return the vent plug (11) to the primary fuel filter vent.
(4) Disconnect the fuel return line from the secondary fuel filter (see Figure 4-13).
(5) Operate the fuel pump priming lever (see Figure 4-15) until fuel, free of air bubbles, flows from the top
of the secondary fuel filter.
(6) Return the fuel return line to the secondary fuel filter. Do not tighten the fuel line.
TA506326
4-35
