OPERATOR TESTING INSTRUCTIONS
Section I.
GENERAL
109. Serviceability Test Procedures
a. General. The items tested in this chapter
The instructions contained in this chapter
are interrelated, therefore, it will be necessary
c o v e r testing of items for serviceability and
to test each of the items with serviceable com-
d e t e c t i n g and locating malfunctions using the
p o n e n t s , e.g., the generator to be tested is
t e s t stand. Testing for serviceability and lo-
mounted on the test stand with a known service-
cating malfunctions is a detailed and exacting
a b l e generator regulator or generator control
p r o c e d u r e , requiring specific instructions for
e a c h item. In addition to instructions in this
s t a n d with a known serviceable rectifier and
chapter, any available data in pertinent publi-
g e n e r a t o r regulator. P r o c e d u r e to follow for
cations and/or manufacturer's literature cover-
determination of serviceability are given in b ,
i n g the unit under test are also required to
c, and d b e l o w .
properly test each item and to prevent damage
b . Generator Serviceability Test. To deter-
to the test stand or the item (s) being tested.
mine the serviceability of a generator, tests are
performed on the test stand without a generator
regulator or generator control box in the circuit.
The basic data, instructions, operations, and
S e r v i c e a b i l i t y tests of this type with service-
a b i l i t y standards are listed in sections under
test procedures covered in this chapter are for
specific manufacturer and model in this chapter.
specific items which can be checked and tested
Refer to the section covering generator under
u s i n g the test stand. Personnel performing
test for these test procedures and serviceability
tests should have a good understanding of the
standards.
theory and operation of each circuit and units
c. Generator Regulator or Generator Control
of the item being tested. Each item must first
B o x Serviceability Test. Serviceability of the
b e thoroughly bench inspected, adjusted, and
g e n e r a t o r regulator or generator control box
in some instances bench tested before attempt-
c a n be determined by testing either of these
ing to test the item on the test stand. Always
items in the circuit with a serviceable genera-
refer to the latest manufacturer's literature and
t o r . Test procedures and serviceability stand-
a v a i l a b l e pertinent technical manual and/or
ards for tests of this type are listed in sections
technical bulletin for the item, as these publica-
of this chapter in the same manner as specified
t i o n s will contain the current rebuild proce-
in b above.
d u r e s , settings, and adjustments. To obtain a
m o r e accurate setting and adjustment, units
generator regulator). Refer to TB 9-2300-206-
s h o u l d be reset and readjusted several times,
15 for procedure for checking and testing the
and a test made after each setting and adjust-
components of this system before mounting on
ment.
the test stand for testing.