TM 9-2350-287-20-1
CHAPTER 4
FUEL SYSTEM MAINTENANCE
Paragraph
Page
Number
Paragraph Title
Number
4-1
General ............................................................................................................................................ 4-1
4-2
Fuel System Draining ........................................................................................................................ 4-2
4-3
Right Electric Fuel Pump and Check Valve Repair ............................................................................ 4-3
4-4
Left Electric Fuel Pump and Check Valve Repair .............................................................................. 4-4
4-5
APU Cargo Compartment Fuel Hoses, Pumps, and Fittings Replacement ........................................ 4-5
4-6
Personnel Heater Fuel Pump Replacement ...................................................................................... 4-14
4-7
Engine-Driven Fuel Pump Replacement ............................................................................................ 4-16
4-8
Engine-Driven Fuel Pump Relief Valve Replacement ........................................................................ 4-17
4-9
Air Cleaner Ducts and Hoses Replacement ....................................................................................... 4-18
4-10
Air Cleaner Repair ............................................................................................................................ 4-21
4-11
Air Cleaner Box Assembly Repair ..................................................................................................... 4-27
4-12
Air Cleaner Restriction Indicator Replacement .................................................................................. 4-29
4-13
Air Cleaner Fan Assembly Replacement ........................................................................................... 4-31
4-14
Air Cleaner Filter Replacement.......................................................................................................... 4-33
4-15
Turbocharger Oil Hoses Replacement .............................................................................................. 4-36
4-16
Powerpack Fuel Lines Replacement ................................................................................................. 4-38
4-17
Fuel Hoses, Lines, and Fittings Replacement ................................................................................... 4-48
4-18
Primary Fuel Filter Assembly Lifting Bracket Replacement ................................................................ 4-56
4-19
Secondary Fuel Filter Assembly Lifting Bracket Replacement ........................................................... 4-57
4-20
Filler Neck Assembly Seal Replacement ........................................................................................... 4-58
4-21
Filler Neck Assembly Replacement .................................................................................................. 4-60
4-22
Upper Fuel Tank Level Transmitter Replacement ............................................................................. 4-61
4-23
Lower Fuel Tank Level Transmitter Replacement ............................................................................. 4-63
4-24
Heat Shield Repair ........................................................................................................................... 4-65
4-25
Primary Fuel Filter Assembly Replacement ....................................................................................... 4-72
4-26
Secondary Fuel Filter Assembly Replacement .................................................................................. 4-75
4-27
Glow Plug and Glow Plug Controller Replacement ............................................................................ 4-79
4-28
Accelerator, Throttle, and Engine Control Governor Replacement and Adjustment ........................... 4-84
4-29
Fuel Shutoff Assembly Replacement ................................................................................................ 4-100
4-1. GENERAL.
This section contains instructions on how to remove, disassemble, clean, inspect, assemble, test, and install the fuel
system. The fuel system consists of the following:
Electric fuel pumps
Engine-driven fuel pump
Fuel check valves
Fuel filter assemblies
Fuel tank level transmitters
Hoses, tubes, and fittings
Change 1 4-1