CHAPTER 4. FUEL SYSTEM MAINTENANCE - TM-9-2320-279-20-10525

TM 9-2320-279-20-1

FUEL

SYSTEM

MAINTENANCE

P a r a Page

Contents

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1

Air Restriction Indicator Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2

Air Filter Element Removal/Service/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3

Air Intake Ducting Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4

4-8

Air Cleaner Assembly Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5

4-11

Fuel Line and Air Vent Line Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-6

4-16

4-24

Fuel Tank and Brackets Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-7

4-31

Engine Stop Solenoid Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-8

Fuel-Water Separator Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-9

4-32

Fuel-Water Separator Removal/Repair/Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-10

4-33

Secondary Fuel Filter Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-11

4-41

Ether Starting Aid Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-12

4-43

Throttle Treadle Valve Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-13

4-47

4-48

Throttle TreadleValve Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-14

ENGINE HIGH IDLE Pressure Regulator and Solenoid

Removal/Repair/Installation/Adjustment (M984) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-15

4-51

Throttle Air Solenoid Check Valve Removal/Installation(M984). . . . . . . . . . . . . . . . . . . . . . .

4-16

4-55

Section

INTRODUCTION

4-1. GENERAL. This chapter contains maintenance instructions for removing, replacing, installing,

repairing, and testing the fuel system components authorized by the Maintenance Allocation Chart (MAC)

at the organizational maintenance level.

4-1