TM 9-2350-256-20
CHAPTER 4
MAINTENANCE OF MAIN ENGINE FUEL, AIR INTAKE,
AND EXHAUST SYSTEMS
CHAPTER OVERVIEW
This chapter describes how to remove, disassemble, test, repair, service, clean, assemble, and install the M88A1 engine
fuel, air intake, and exhaust systems.
This chapter consists of the following sections:
Page
Section I:
Fuel System .................................................................................4-1
Section II:
Primary, Fuel/Water Separator, and Manifold Heater
Fuel Filters and Related Parts .................................................... 4-31
Section III:
Air Intake System ....................................................................... 4-50
Section IV:
Exhaust System ......................................................................... 4-59
SECTION I: FUEL SYSTEM
Para.
Task
Page
4-1
Replace Fuel Injector Tubes, Brackets, and Related Parts............................................................................ 4-2
4-2
Replace Engine Right and Left Upper Covers............................................................................................... 4-6
4-3
Replace/Repair Electric Fuel Pump ............................................................................................................... 4-8
4-4
Replace Fuel Transfer Pump Hoses and Related Parts ............................................................................... 4-10
4-5
Replace Fuel Pump (Gear Type), Lines, and Related Equipment ................................................................ 4-12
4-6
Replace Fuel Injector Fuel Return Hose ..................................................................................................... 4-14
4-7
Replace/Repair Fuel Filler Tube and Filler Strainer ..................................................................................... 4-18
4-8
Replace Fuel Lever Transmitter ................................................................................................................. 4-19
4-9
Replace/Repair Purge Pump/Handle/Lever ................................................................................................ 4-20
4-10
Replace/Repair Fuel Valve Lines and Fittings.............................................................................................. 4-22
4-11
Replace/Adjust Engine Fuel Manual Shutoff Control.................................................................................... 4-24
4-12
Replace Fuel Control Valves and ID Plates ................................................................................................. 4-27
4-13
Replace Fuel Check Valve .......................................................................................................................... 4-29
4-1
