LESSON 4
PERFORM OPERATOR TROUBLESHOOTING PROCEDURES
ON THE M157 SMOKE GENERATOR SET
Critical Tasks: 031-508-1070
031-508-1072
LESSON DESCRIPTION: After you have learned to operate and service the M157 Smoke Generator
Set, you will learn the troubleshooting procedures for identifying malfunctions within the set in this
lesson. To troubleshoot the set you must be able to identify troubleshooting procedures when --
The circuit breaker CB1 moves to the OFF position.
The circuit breaker CB1 moves to the OFF position when the power switch is set to ON.
The circuit breaker CB1 moves to the OFF position when the fog oil switch is set to ON.
The engine will not start.
The engine runs erratically.
The engine overheats.
TERMINAL LEARNING OBJECTIVE:
ACTION:
Perform operator-level troubleshooting procedures on the M157 Smoke Generator
System.
CONDITIONS:
Given information about and illustrations of the operator-level troubleshooting
procedures on the M157 Smoke Generator System.
STANDARDS:
Demonstrate competency in the skills and knowledge of the task by responding to the
multiple-choice test covering operator-level troubleshooting procedures on the M157
Smoke Generator System.
REFERENCE:
TM 3-2040-279-12&P.
4-1
CM3305