TM-9-2350-311-20-1
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS
AUGUST 1994
TM-9-2350-311-20-1 - Page 21 of 1275
TM 9-2350-311-20-1
1-7 REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIRs)
If your M1 09A2/M109A3/M109A4/M1 09A5 Howitzer needs improvement, let us know. Send us an EIR. You, the user,
are the only one who can tell us what you don’t like about your equipment. Let us know why you don’t like the design or
performance. Put it on an SF 368, Product Quality Deficiency Report. Mail it to the address specified in DA PAM 738-
750.
NOTE
When equipment failure occurs but is not caused by normal wear, poor operation, or
accidental damage, an EIR must be submitted.
TABLE 1-1 AUTHORIZED EQUIPMENT CONFIGURATION CHANGES
PART OR MODEL NO.
CHANGE DOCUMENT
TO BE MODIFIED
DESCRIPTION
M109A2/M109A3/M109A4/
M109A2/M109A3/M109A4/
Eliminates electrically driven fuel
M109A5
Howitzer (Fuel Pump
M109A5
pump, modifies fuel pump circuit
EIR Digest Article)
and air cleaner blower motor
circuit
1-8 WARRANTY INFORMATION
The Ml 09 Howitzer series is no longer warranted.
1-9 SAFETY, CARE, AND HANDLING
Nuclear, Biological, and Chemical (NBC) agents can kill you. If NBC exposure is
suspected, all air filter media must be handled by personnel wearing full NBC-
protective equipment (FM 21-1 1).
1-7
WARNIN G
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