Current Output Test

Fig. 9 Current output test. Models w/external regulator:

Fig. 10 Current output test. Models w/regulator in-engine electronics:

1. Disconnect battery ground cable and "Bat" lead from alternator output terminal.
2. Complete test connections as shown.
3. On units with external regulator, disconnect wiring harness electrical connector from the electronic voltage regulator.
4. On units with regulator in-engine electronics, remove air hose between power module and air cleaner, then the wiring harness electrical connector.
5. On all models, connect a suitable jumper wire from wiring harness connector green wire terminal to ground. Do not connect blue J2 lead of wiring electrical connector to ground.
6. Connect battery ground cable, then start engine and operate at idle.
7. Adjust carbon pile rheostat and engine speed to obtain 15 volts at 1250 RPM. While increasing engine speed, do not allow voltage to exceed 16 volts.
8. If ammeter reading is not approximately 87 amps, proceed to "Bench Tests."