CHAPTER 4: MAINTENANCE OF MAIN ENGINE FUEL, AIR INTAKE, AND EXHAUST SYSTEMSTM 9-2350-256-204-15 REPLACE FUEL/WATER SEPARATOR FILTER ELEMENTS--ContinuedCAUTIONDo not remove or otherwise disturb center(final) filter element during semiannualouter filter element replacement. If center(final) filter element is removed, it must bereplaced.3 Remove and discard two outer filter elements (9)(or if necessary, center [final] filter element [10] ).Rotate elements to facilitate removal.b. INSTALLATION1 Install two new outer filter elements (9).2 Install new gasket (7) and cover (6) with eightscrews (3), eight new lockwashers (4), and eight flatwashers (5).3 Close drain cock (1). Operate electric fuel pump until fuel flows from bleeder valve (2). Tighten bleedervalve. Check for leaks.NOTEFollow-on maintenance: Install grille doors (see paragraph 9-57)4-36
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