Note. The key numbers shown
below in
parentheses in
this section refer to
figure 32 except where
otherwise
indicated.
TESTING DELCO PRODUCTS AND AUTO-LITE
Section Il.
25-AMPERE GENERATORS
c. Preparation.
(1) T u r n a l l r a n g e s e l e c t o r s w i t c h e s b e -
neath the meters on the test stand to
be tested by methods prescribed in this section.
the maximum reading position, all
They are waterproof types and are pulley-
rheostats fully counterclockwise, and
driven with a clockwise shaft rotation at drive
all on-off toggle switches to the "OFF"
end (turns to the right facing pulley). Refer
position (some toggle switches have
to TM 9-8627 and TM 9-2920-209-35 for
complete descriptive information.
test on the low speed driving head
1 1 1 . 2 5 - A m p e r e
Generator Performance
Test (Delco-Remy and Auto-Lite)
a. Purpose. This test is performed to deter-
mine whether the generator is functioning in
(4) C o n n e c t t h e g e n e r a t o r t e r m i n a l s a n d
accordance with the manufacturer's specifica-
housing (ground) to the generator
tions for ampere and voltage output when oper-
ating under normal conditions.
of the test stand using applicable leads
b. Tabulated Data.
(1) Delco Products (Delco-Remy) genera-
tors.
(5) C o n n e c t a c o n n e c t i n g l i n k ( f i g . 6 5 )
ORD 7524474
Model 1117486 (4 brush)
between the "B+" and "G+" and be-
ORD 7355736
tween " B - " a n d " G - " r e g u l a t o r
Model 1117495
24
Volts (field-current draw)
28.5
Rated volts (cold output)
25
Rated amperes (cold output)
(6) Check to see if the toggle switch on
Revolutions per minute (for
1750
rated output)
"ON" position then slide the safety
negative
Ground polarity
clip (21-B) off the stop button (21-C)
internal
Field ground
and depress the start button (21-A)
(do not depress the "START" button
(2) A u t o - L i t e Generators.
more than 10 seconds) to start the
Model GHA-4802 UAT
ORD 7355736
varidrive assembly. Check for correct
Model GHA-4802 B U T
ORD 7374750
rotation of the generator pulley (pars.
Volts (field-current draw)
20
93c and 110).
Rated volts (cold output)
28.5
(7) If it is necessary to change the rota-
25
Rated amperes (cold output)
tion of the generator pulley (correct
Revolutions per minute (for
rotation is important, otherwise gen-
rated output)
1800
erator will have no output), stop the
Ground polarity
negative
varidrive assembly by pushing the
Field ground
internal
stop button (21-C), let the varidrive
assembly come to a complete stop, and
Note. The Auto-Lite 25-ampere generator model
GHA-4802 BUT, ordnance number 7374750, table 1,
place the drive reversing switch (fig.
can also be tested following procedures in this section.
Refer to referenced table above and TM 9-1825-B for
Warning: Before reaching into the
tabulated and testing data when performing tests on
high voltage compartment to change
this generator.
58