current regulator unit (fig. 33 and 34)
(3) W h e n p e r f o r m i n g t h e t e s t s ( p a r .
1 1 1 d ) the ampere reading should be
o f the generator regulator goes into
2 5 amperes on the load dc ammeter
action.
(1), the voltage reading 28 volts on
(6) T u r n the variable load 0-25 0-12.5
t h e dc voltmeter (4), and not more
a m p e r e rheostat (13) fully counter-
than 1 ampere reading on the field dc
clockwise and place all load switches
a m m e t e r (2) if the generator regula-
(12) in the "OFF" position.
t o r is performing properly.
(7) I f t h e g e n e r a t o r r e g u l a t o r d o e s n o t
(4) Shock test the generator and genera-
perform as specified in (3), (4), and
t o r regulator while performing tests.
( 5 ) above, continue with test proce-
Place the starter test load disconnect
dures in e b e l o w .
s w i t c h (10) to "OFF" position and
e . Test Procedures for Individual Control
the voltage reading on the dc voltmeter
Units.
( 4 ) should rise. P l a c e the load dis-
connect switch (10) to the "ON" posi-
(1) General. This test is similar to the test
t i o n and the ampere reading on the
in d above, except that the cover of
load dc ammeter (1) should return to
t h e generator regulator is removed
and each individual control unit of the
the 25 ampere reading and the voltage
regulator is tested for performance as
reading on the dc voltmeter (4) should
return to 28 volts with not more than
specified by manufacturer and/or per-
1 ampere reading on the field dc am-
tinent publication(s) covering the
meter (2), as specified in (3) above.
r e g u l a t o r . These tests and specifica-
t i o n s are given in (3) through (6)
(5) I n c r e a s e the ampere load by turning
below.
the variable load 0-25 0-12.5 ampere
rheostat (13) clockwise or use a com-
(2) S w i t c h e s and controls position. T h e
bination of the 50-25 fixed load switch
position of switches and controls per-
(12-B) and the rheostat (13) and ob-
t i n e n t to the tests in paragraph (3)
serve a slight drop-off in the regulator
through (6) below are listed in table
v o l t a g e on the dc voltmeter (4) and
4 below. Place each of these items in
the leveling off of the ampere reading
the position indicated in column 3a of
on the load dc ammeter (1) when the
the table before tests are started.
Table 4. Position of Switches and Controls Before and After 25-Ampere Generator Regulator Control Units Test
(Delco-Remy or Auto-Lite)
(2)
(1)
(3)
Figure No. 32
Position
(a)
(b)
Key No.
Before
After
Load dc ammeter range selector switch . . . . . . . . . .
500A (X10)
5
50A (X1)
Field dc ammeter range selector switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30A (X6)
5A (X1)
6
Dc volts-millivolts range selector switch . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9V
7
9V
Dc voltmeter range selector switch . . . . . . . . . . . . . . . . . . . . . . . . . . ..
50V (X5)
8
50V (X5)
Dc voltmeter circuit selector switch . . . . . . . . . . . . . . . . . . . . . . . . . .
ANY
9
RECT GEN
Starter test load disconnect switch . . . . . . . . . . . . . . . . . . . . . . . . .
OFF
OFF
10
Field ammeter dc ac/dc switch . . . . . . . . . . . . . . . . . . . . . . . . .
ANY
DC
11
Fixed load switches . . . . . . . . . . .
OFF
12
OFF
Variable load 0-25 0-12.5 ampere rheostat . . . . . . . . . . . . . . . . . . . . . . . .
Fully counter-
Fully counter-
13
clockwise
clockwise
Polarity reversing switch . . . . . . . . . . . . . . . . . . . . . . . . . . .
CENTER (OFF)
14
NEG GND
Generator field external-internal ground switch
CENTER (OFF)
INT GND
15
40-ohm field current rheostat . . . . . . . . . . . . . . . . .
Fully counter-
Fully counter-
16
clockwise
clockwise
40-ohm 30 ampere maximum rheo-reg switch . . . . . . . . . . . . . . . . . . . . . .
17
RHEO
CENTER (OFF)
