4-19. WINTERIZATION SYSTEM.
4-19.2 Winterization Fuel System.
This task covers
Tool Kit, Master Mechanic,
Main Engine Shutdown (see para. 2-10)
APU Shutdown (see para. 2-12)
Batteries Disconnected (see para. 4-24.12)
22, Appendix E Pipe Sealant
235A Fuel Pump
110-B-04X02 Bushing Reducer
2600 Valve Check
900729-21 Clamp Support
101634-044 Assembly Hose
101634-028 Assembly Hose
101634-015 Assembly Hose
101634-024 Assembly Hose
101634-058 Assembly Hose
HS12 Hose Clamp
3730-036 Fuel Filter Element
1-9982-044 Fuel Filter
116-B-04 Elbow Street
116-B-02 Elbow Street
Remove top cover from fuel tank compartment.
Remove pump body inspection door.
Remove support clamps from hose(s) which require replacement.
All hoses and fittings may be removed individually. Remove components as required.
Inspect hoses for cracks, kinks or excessive deterioration. If inspection reveals problem areas within hose
assemblies, replace hose. Manufacture hoses as detailed in para. 4-9.
Inspect fittings for damaged threads. Replace fittings found to be damaged.
Inspect the seat and poppet of check valve for deep scratch marks or pitting. Check for weak or broken
spring. If any damage is detected replace check valve assembly.
Inspect inlet screen of electric fuel pump for contamination. Screen may be cleaned with compressed air.
Pump unit is not repairable.
Remove fuel filter element and discard. Replace with new element.