MAINTENANCE OF M939 SERIES VEHICLE - OD1661 - LESSON 1/PE 1
PRACTICAL EXERCISE 1
1.
Instructions
On a plain piece of paper, respond to the requirements listed below.
2.
Requirement
Successful completion of this exercise provides an indication of
success in the subcourse. Check your answers against those provided
on the answer page following the questions.
a.
The M939 series vehicles are designated as ___________ , 6x6.
b.
Briefly state the purpose of the M923 and M925 trucks.
c.
What are the load limits for the M929 and M930 dump trucks?
d.
The normal operating temperature range for the engine in the
M939 is _____________.
e.
What are the two functions of the wet tank reservoir?
f.
What is the normal pressure for the primary air system?
g.
List the general rules of troubleshooting.
h.
When performing No-Go test 80, the current probe is installed
and the offset test is performed. What is the offset value range for
the current probe?
i.
What is the first troubleshooting step when troubleshooting the
transmission system for the malfunction TRANSMISSION OVERHEATS
(ACCORDING TO TRANSMISSION TEMPERATURE GAGE)?
j.
When troubleshooting the battery system, the specific gravity of
the battery is tested as well as each cell of the battery. Each of
these cells should be within _____________ points of each other.
65
Previous Page
