TROUBLESHOOTING THE M998 ELECT SYST. - OD1617 - LESSON 1/PE 1
PRACTICAL EXERCISE 1
Read the scenario and respond to the requirements that follow the
You have been reassigned to a maintenance unit in Germany and have
just reported to the motor pool. (Prior to reporting to this unit,
you were an instructor in the 63B, Light Wheel Vehicle Repairers
Course at the Edgewood Area of the Aberdeen Proving Ground.) The
motor sergeant asks you to prepare some lesson plans dealing with
troubleshooting the electrical system on the high mobility multi-
purpose wheeled vehicle (HMMWV). Since the weekend is coming up and
the motor sergeant plans to hold the training on Monday, you decide
to prepare the lessons and tests over the weekend.
It is now Sunday afternoon and you have prepared the lesson plans and
the tests. All that remains now is to prepare the answer sheet for
the test questions.
Using your knowledge of the HMMWV electrical
subcourse, answer the questions that follow.
The electrical system on the HMMWV contains how many components?
List the six rules of troubleshooting that should be employed
prior to troubleshooting the electrical system on the HMMWV.
When troubleshooting the malfunction: ALL VEHICLE ELECTRICAL
SYSTEMS INOPERATIVE, you are directed to measure the specific gravity
of the electrolyte in the battery. What should the specific gravity
Before disconnecting any connector from the protective control
box, what must be disconnected first?