TM 9--2350--292--20--10207 00--1FUEL BACKFLOW VALVE AND RELATED PARTS REPLACEMENT0207 00THIS WORK PACKAGE COVERS:Removal, InstallationINITIAL SETUP:Tools and Special ToolsGeneral mechanic’s tool kit (item 1, WP 0717 00)Materials/PartsLockwashers (4) (item 9, WP 0718 00)Lockwasher (item 273, WP 0718 00)Self--locking nuts (2) (item 274, WP 0718 00)Pressure sensitive tape (item 41, WP 0716 00)Marker tags (item 49, WP 0716 00)Wiping rags (item 7, WP 0716 00)Self--locking nut (item 175, WP 0718 00)Equipment ConditionsFuel/water separator drained (WP 0220 00)Primary fuel filter drained (WP 0222 00)Fuel line from back flow valve to tee at preheat fuelfilter and to manifold heater fuel pump removed(WP 0224 00)Cooling fans removed (WP 0235 00)Engine top housing assembly removed(WP 0232 00)For maintenance of items #12, #13, #14, #15and #16WARNINGNOTERemove only those parts which must be replaced.Tag all parts prior to removal to aid in installation.Place rags under hose connections to catch any fuel thatspills during maintenance. Dispose of rags in accordancewith standard operating procedure.Removal1. Remove clamps and attaching hardware securing hose assemblies, tube assemblies and brackets as shown inlegend and illustration. Discard lockwashers and self--locking nuts.2. Remove hose assemblies, tube assemblies, brackets and fittings in accordance with the following legend and il-lustration.3. Inspect parts for damage and replace as required.Installation1. Apply pressure sensitive tape to all male pipe threads.2. Install hose assemblies, tube assemblies, brackets and fittings in accordance with the following legend and il-lustration.3. Secure hose assemblies, tube assemblies and brackets with clamps, attaching hardware and new lockwashersand self--locking nuts as shown in legend and illustration.
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