SECTION II: PRIMARY, FUEL/WATER SEPARATOR, AND MANIFOLD
TM 9-2350-256-20
HEATER FUEL FILTERS AND RELATED PARTS
SECTION II: PRIMARY, FUEL/WATER SEPARATOR, AND MANIFOLD
HEATER FUEL FILTERS AND RELATED PARTS
Para.
Task
Page
4-14
Replace/Repair/Service Primary Fuel Filter ...............................................................................................4-31
4-15
Replace Fuel/Water Separator Filter Elements.. ........................................................................................4-35
4-16
Replace Fuel/Water Separator Filter Unit ..............................................................................................4-37
4-17
Replace Fuel/Water Separator Automatic Drain System and Solenoid Valve ............................................4-39
4-18
Replace Manifold Heater Fuel Supply Solenoid Valve and Fuel Filter .......................................................4-41
4-19
Replace Manifold Heater Ignition Unit .......................................................................................................4-42
4-20
Replace Manifold Heater Fuel Return Solenoid Valve................................................................................4-43
4-21
Replace/Repair Manifold Heater Nozzle Assembly ....................................................................................4-45
4-22
Manifold Heater Operation Check ..............................................................................................................4-47
4-23
Replace Manifold Heater Fuel Lines and Fittings .......................................................................................4-47
4-14 REPLACE/REPAIR/SERVICE PRIMARY FUEL FILTER
THIS TASK COVERS
a. Servicing
b. Removal
c. Disassembly
d. Cleaning
e. Assembly
f. Installation
INITIAL SET-UP
Tools:
Material/Parts-Continued:
Tool kit, general mechanic's (Appendix C,
Nuts, self-locking (2) (Appendix G, item 168)
item 53)
Parts kit, primary fuel filter (Appendix G,
Suitable container
item 203)
Material/Parts:
Equipment Condition:
Solvent, dry-cleaning (Appendix D, item 9)
Left front and center front air inlet grilles removed
Locknut (Appendix G, item 93)
(see paragraph 9-57)
Lockwashers (3) (Appendix G, item 133)
a. SERVICING
WARNING
Do not smoke or use open flame when working on fuel system: explosion may occur, causing severe'
injury or death.
NOTE
Semiannually, or after 750 miles (1207 kilometers
[km] ) of vehicle operation, replace primary fuel
filter element.
When servicing and assembling primary fuel
filter, use parts kit.
Powerplant and oil cooler lines removed for
clarity only.
1
Loosen bleeder valve (1).
2
Remove constant bleed line (2) and drain fuel from
fuel filter into suitable container.
4
31