LESSON 2
TROUBLESHOOT THE M3A4 SMOKE GENERATOR
TASK
Troubleshoot the M3A4 smoke generator.
CONDITIONS
Given information about and illustrations of troubleshooting procedures for the generator when the
engine will not start, produces little or no smoke, or overheats.
STANDARDS
Demonstrate competency of the task skills and knowledge by responding to the multiple-choice test
covering the description of the smoke generator and troubleshooting procedures for the generator when
the engine will not start, produces little or no smoke, or overheats.
REFERENCES
STP 3-54B1-SM
STP 3-54B2-SM
TM 3-1040-276-10
Learning Event
TROUBLESHOOT THE M3A4 SMOKE GENERATOR WHEN THE ENGINE WILL NOT START,
PRODUCES LITTLE OR NO SMOKE, OR OVERHEATS
The engine of the smoke generator has the same basic requirements for operation as any other
gasoline engine. In order for a gasoline engine to start, it must have three things. These are fuel, air,
and spark. Additionally, these three things must arrive at the right place, in the right amounts, at the
right time. If these conditions are met, the engine will start and run. When one or more of these
requirements are not met, due to improper adjustment or component failure, you will be required first to
inspect to determine the cause, and second, perform corrective measures.
Engine Starting Procedures
The procedures we will discuss below will assist you in correcting the most common problems
found when the engine will not start. The first step, prior to starting the engine, is to perform before-
operation maintenance on the M3A4 smoke generator. Use Figure 9 to ensure this has been done. Next,
check the starting procedures. Improper starting procedures are the number one reason for a no-start
condition. The correct procedures for starting the generator are shown in Figure 10.
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