table 4 above
in positions indicated
ufacturer's or pertinent publica-
in column 3 b of the table.
t i o n ( s ) specifications.
test data on other models of generator
regulators. Refer to TM 9-1825B (Auto-
t o r regulator from the test stand
L i t e ) and TM 9-8627 (Delco-Remy) for
and secure the cover on the regula-
further information when performing
tor. Place switches and controls in
N o t e . The key numbers
in this section refer
to figure 32 except
Section IV. TESTING DELCO PRODUCTS 25-AMPERE 4-UNIT
(3) Ground polarity
(4) Current regulator unit.
The function of the Delco Products (Delco-
0 . 1 0 5 inch
Remy) 25-ampere 4-unit vibrating contact
O p e r a t i n g range
23 to 27
type (number 1118606) generator regulator
(figs. 33 and 35)
of the 3-unit
2 5 amperes
(5) Actuating relay unit.
113, except its construction includes the addi-
Air gap (with lower
tion of an actuating relay unit and an overload
points just touching) 0.037 inch
circuit breaker device. The primary purpose of
P o i n t opening (with
the actuating relay unit is to prevent the points
upper points just
of the circuit breaker relay unit (cutout relay
u n i t ) from opening from shock or vibration
25 to 27
which assures better operation of the unit. This
i s accomplished by the manner in which the
windings are connected between the two units.
(6) Circuit breaker relay u n i t ( c u t - o u t
The overload circuit breaker device is attached
t o the front of the current regulator unit. Its
f u n c t i o n is to open the contact points of the
P o i n t opening
circuit breaker relay unit (cut-out relay)
should they fail to open normally, thus prevent-
14 to 17
C l o s i n g range
i n g a high reverse current to the generator.
2 to 5 volts
R e f e r to TM 9-8627 for complete descriptive
116. 25-Ampere Generator Regulator Con-
(7) Overload circuit breaker device.
trol Units Tests (4-Unit Type)
a. Purpose. This test is performed to indi-
armature and core
c a t e the functioning of the 4-control units of
t h e 25-ampere generator regulator (figs. 33
C u r r e n t regulator max-
a n d 35) and whether setting adjustments are
imum opening gap
r e q u i r e d to adjust the units so they perform
Note. T h e A u t o - L i t e 2 5 - a m p e r e 4 - u n i t
i n accordance with manufacturer's specifica-
vibrating contact type generator regulator
VBC 4003UT ordnance number 8689216,
b. Tabulated Data.
p r o c e d u r e s in this section. Refer to refer-
(1) M a n u f a c t u r e r .
enced table above and TM 9-1825-B for
Delco Products (Delco-Remy)
tabulated data when performing tests on
t h e regulator.
(2) Identifying number.
c. Preparation. Prepare the test stand fol-