MAINTENANCE OF THE M88A1 - OD1672 - LESSON 3/PE 3
PRACTICAL EXERCISE 3
1.
Instructions
Read the scenario and respond to the requirements that follow the scenario.
2.
Scenario
In the two previous lessons, you administered questions pertaining to the
operation of components of the suspension system and procedures for track,
sprocket, and roadwheel classification; and to the construction, components,
maintenance, repair, adjustment, and troubleshooting of various vehicle
systems, including the cooling, fuel, exhaust, and air intake systems to the
wheel vehicle mechanics that you are cross-training on the M88A1 series
recovery vehicle. To ensure accomplishment of the objectives of this final
lesson, you decide to administer a written practical exercise consisting of
questions which you have developed.
These questions are listed in the
following requirements paragraph.
3.
Requirement
Your task is to provide the correct answers to the questions listed below.
You may use the text to the third lesson to find the correct answers.
a.
Describe the engine of the APU (auxiliary power unit).
b.
What two electrical functions are performed by the APU generator?
c.
What is the primary function of the APU?
d.
What should be done, if the LOW OIL PRESSURE light stays lit, or stays
on after the engine starts, or comes on while the engine is running?
e.
What must be done to the APU fuel
system
whenever
any
type
of
maintenance or repairs are performed on it?
f.
What are
the
voltage
and
amperage
ratings
of
the
main
engine
generator?
g.
How is the main engine generator driven?
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