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TM 5-4210-220-12
4-19. WINTERIZATION SYSTEM.
4-19.2 Winterization Fuel System.
This task covers
a.
Removal
b.
Inspection
c.
Installation
TOOLS
Tool Kit, Master Mechanic,
NSN 5180-00-699-5273
EQUIPMENT CONDITION
Main Engine Shutdown (see para. 2-10)
APU Shutdown (see para. 2-12)
Batteries Disconnected (see para. 4-24.12)
MATERIALS/PARTS
22, Appendix E Pipe Sealant
235A Fuel Pump
127-B-02 Tee
48-F-06X04 Connector
112-B-02 Nipple
110-B-04X02 Bushing Reducer
103-B-04 Coupling
2600 Valve Check
48-F-06X02 Connector
900729-21 Clamp Support
MS51922-17 Locknut
MS90725-60 Capscrew
101634-044 Assembly Hose
101634-028 Assembly Hose
101634-015 Assembly Hose
101634-024 Assembly Hose
101634-058 Assembly Hose
48-F-06X06 Connector
101-B-06 Tee
HS12 Hose Clamp
TUBENE02512 Tubing
KFO406MS Connector
3730-036 Fuel Filter Element
1-9982-044 Fuel Filter
116-B-04 Elbow Street
113-B-04X24 Nipple
116-B-02 Elbow Street
REMOVAL
(1)
Remove top cover from fuel tank compartment.
(2)
Remove pump body inspection door.
(3)
Remove support clamps from hose(s) which require replacement.
(4)
All hoses and fittings may be removed individually. Remove components as required.
INSPECTION
(1)
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.
(2)
Inspect fittings for damaged threads. Replace fittings found to be damaged.
(3)
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.
(4)
Inspect inlet screen of electric fuel pump for contamination. Screen may be cleaned with compressed air.
Pump unit is not repairable.
(5)
Remove fuel filter element and discard. Replace with new element.
4-290
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