Assignment 4
ENGINE MAINTENANCE
Textbook Assignment: Engineman 1&C, NAVEDTRA 10543-E1, Pages 3-1 through 3-24
Learning Objective: Describe the
procedure and equipments used to
inspect and test-run diesel
engines.
4-1.
4-2.
4-3.
4-4.
4-5.
Questions 4-1 through 4-4 are to be
judged True or False.
A comparatively minor engine malfunction,
if not recognized and remedied in its
early stages,never develops into a
major casualty.
Work center personnel must learn to
recognize symptoms of developing
malfunctions by using the senses of sight,
hearing, smell, and touch.
Because of the safety features which are
commonly incorporated in pumps and similar
equipment, considerable loss of capacity
may occur before any external evidence of
damage is apparent.
When a material failure occurs in any
unit, a prompt inspection of all similar
units will NOT prevent a wave of similar
casualties.
A spring-balanced indicator uses which of
the following types of pistons?
1.
Trunk
2.
Inverted
3.
Ball
4.
Check
22
Questions 4-6 and 4-7 are to be judged
True or False.
4-6.
The Kiene indicator is used only to
measure the firing pressure of an engine.
4-7. A multivolt meter is used to measure the
voltage produced by the thermocouples
installed in an engine's exhaust system.
Learning Objective:Specify what
maintenance and adjustments are required
on temperature regulators, and recognize
some of the troubles that may be
encountered.
Question 4-8 is to be judged True or
False.
4-8.
For maximum temperature control, the bulb
of the temperature regulator should always
be installed in the inlet side of the
engine cooling water piping system.
4-9.
At which of the following points should
the valve stem of a temperature regulator
be lubricated?
1.
Where the valve stem enters the
stuffing box
2.
Around the threaded sleeve used for
manual control
3.
Both 1 and 2 above
4.
At the temperature adjusting
wheel
4-10.
What should you do if the temperature
of the freshwater leaving the engine
becomes too high when the regulator
is set on the lowest adjustment setting?
1.
Make sure that the manual pointer is
set at the THERMOSTATIC position
2.
Make sure that the packing gland is
not binding the valve stem and the
valve stem is not stuck in the
minimum cooling position
3.
Make sure that the temperature
control element is operating properly
4.
All of the above