REGULATOR CHECKS AND SPECIFICATIONS
Delco
Case
Cutout Relay
Voltage Control
Remy No.
Air Point
Closing Voltage
Air Voltage Voltage
No.
Gap Opening Voltage Adj.
Gap Range
Adj.
1118988 A70221 .020' .020"
ll.8-:i4.0
12,8
. 075"
13.6-14.5 14.0
The regulator can be checked on the
tractor. Disconnect and tape the wire to the
''B" terminal at the regulator and disconnect
the wires to the
''L" terminal of the regula-
tor. Connect test equipment, Figure F-11.
Start the engine and run at 1000 RPM or run
the generator at 2500 RPM for 15 minutes
to let regulator warm up to operating temp-
erature. The variable resistance must have
an open position and during warm up must
be in the open position. Turn variable re-
sistance slowly until all resistance is cut
out. Note voltage setting.
If testis repeated,
always turn variable resistance back to the
open position before the voltage is again
raised.
fl
fl
ii
c!J
G
VARIABLE
RE SI STANCE
REGULATOR
Fl:D::.=========~=:411
0 0
~
VOLTMETER
Figure F-11
CUTOUT RELAY CLOSING VOLTAGE CHECK
This check should he made after the vol -
tage regulator check has been made. Dis-
connect and tape the \\-ire from the
"B" ter-
minal. Disconnect the wires from the
"L"
terminal. :Make connections of. test equip-
ment, Figure F-12. This is the same hook
up as the voltage regulator check
except the
voltmeter is connected to the "A'' terminal
of the starter-generator. Turn the varia1Jle
resishmce to cutout
all resistance. Run at
same speed as regulator check above.
Turn the varia1Jle resistance slowly to the
open position and then back slowly to cutout
resistance until the relay closes (sharp drop
on the voltage reading).
If test is to be
repeated always return to the open position
before test.
F-7
VOLTMETER
Figure F-12
To Next Page
Loading...
