TM-9-2350-358-BD
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A6
TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT SUPPORT MAINTENANCE
MARCH 1994
TM-9-2350-358-BD - Page 93 of 343
TM 9-2350-358-BD
CHAPTER 4
ENGINE
BDAR FIXES SHALL BE USED ONLY IN COMBAT OR
FOR
TRAINING
AT
THE
DISCRETION
OF
THE
COMMANDER. (AUTHORIZED TRAINING FIXES ARE
LISTED IN APPENDIX E.) IN EITHER CASE, DAMAGES
SHALL BE REPAIRED BY STANDARD MAINTENANCE
PROCEDURES AS SOON AS PRACTICABLE.
SECTION I.
INTRODUCTION
4-1.
SCOPE
Fixing the engine system (air Induction, lubrication, fuel management, and electrical) is done by using the repair
procedures in this chapter.
The proper procedure can be found by using the fault assessment tables or the repair
procedure index (para 4-3). Repair of the engine itself is limited to replacing the defective module with a known good
module.
4-2.
ASSESSMENT PROCEDURE
Table 4-1.
Engine Visual Assessment
VISUALLY INSPECT
DAMAGE FOUND TO:
Engine Failure.
..............................................
para 4-4
Fuel System .
...............................................
Chapter 5
Injector Failure .
.............................................
para 4-6
Throttle Linkage .
...........................................
para 4-7
Air Induction System .
....................................
para 4-8
Exhaust System .
.........................................
para 4-14
Lubrication System.
.....................................
para 4-16
Cooling System.
..........................................
Chapter 6
Determine if:
No damage found
Damage can be repaired
Damage cannot be repaired
- Note repair requirements
- Note extent of damage repair
requirements
Go to Table 2-3 Evaluation of
Performance Capability
Visual Inspection is complete.
Return
to Table 2-1 to continue visual assessment.
4-1
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