4-10 CHARGING
4-10
TESTING (Continued)
REAR TERMINA
ALTERNATOR
ALTERNATOR
“BAT” AND “FLD” TERMINALS
SIDE 1
ALTEI
REGULATOR PLUG
REMOVED
FROM REGULATOR
-/
JUMPER WIRE CONNECTED
TO ALTERNATOR
“BAT” AND “FLD” TERMINALS
J 1636-l E
Regulator S and I Circuit Tests
S-Circuit with Ammeter
1. Connect the positive lead of the voltmeter to
the S terminal of the disconnected regulator
wiring plug and negative lead of voltmeter to
battery ground terminal. Then, turn the igni;
tion switch to the On .position. DO NOT start
the engine. No voltage should be indicated
with ignition switch Off.
2. The voltmeter should indicate battery voltage.
3.
If there is no voltage reading, service the
S
wire lead from the ignition switch to the reg-
ulator wiring plug.
4. Connect the positive voltmeter lead to the
positive battery cable terminal, connect reg-
ulator wiring plug to regulator and repeat the
Load Test.
S and I Circuit - With Indicator Light
1. Disconnect the regulator wiring plug and in-
stall a jumper wire between the “A” and “F”
terminals.
2. With the engine idling, connect the negative
voltmeter lead to the battery ground terminal
and the positive lead of the voltmeter to the S
terminal and then to the I terminal of the reg-
ulator wiring plug. The voltage of the S circuit
should read approximately one-half of the I
circuit.
3. If no voltage is present, service the wiring
circuit. Reconnect the positive voltmeter lead
to the positive battery cable terminal.
4.
Then, remove the jumper wire from the reg-
ulator wiring plug and connect the wiring plug
to the regulator. Repeat the Load Test.
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