TM-9-2320-361-20
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
OCTOBER 1991
TM-9-2320-361-20 - Page 7 of 1207
TM 9-2320-361-20
REPORTING OF ERRORS
You can help improve this manual. If you find any mistakes or if you know of a way to
improve the procedures, please let us know. Mail your letter, DA Form 2028 (Recom-
mended Changes to Publications and Blank Forms), or DA Form 2028-2 located in back
of this manual direct to: Commander, U.S. Army Tank-Automotive Command, ATTN:
AMSTA-MB, Warren, Michigan 48397-5000. A reply will be furnished to you.
CHAPTER 1
Section I.
II.
III.
CHAPTER 2
Section I.
II.
III.
IV.
V.
VI.
VII.
CHAPTER 3
Section I
II.
III.
IV.
V.
VI.
VII.
VIII.
IX.
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Description and Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
Repair Parts, Special Tools, TMDE, and Support Equipment . . . . . . . . . . . . . . . . .
Service Upon Receipt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventive Maintenance Checks and Services (PMCS) . . . . . . . . . . . . . . . . . . . . .
Mechanical Systems Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compressed Air and Brake System Troubleshooting . . . . . . . . . . . . . . . . . . . . . . .
Electrical Systems Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STE/ICE Troubleshooting (Simplified Test Equipment for Internal
Combustion Engines) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE AND CLUTCH SYSTEMS MAINTENANCE . . . . . . . . . . . . . . . . . .
Engine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Lubrication System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Intake System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turbocharger Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accelerator System Maintenance.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling System Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page
v
1-1
1-1
1-3
1-37
2-1
2-1
2-1
2-2
2-24
2-52
2-74
2-148
3-1
3-1
3-6
3-14
3-20
3-28
3-31
3-70
3-82
3-92
ii
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