Ford — Proper installation. Always use the black color

A Ford service procedure — check it applies to your exact model before use.

Procedure

4. The charging system uses a 500 ohm resistor
1. Check battery posts and battery cabie termi-
2. Check for clean and tight wiring connections
3. Check the alternator belt tension using belt
1. If the charge indicator light does not come on
2. If the charge indicator light does not go on,
3. If the bulb is not burned out, an open circuit
4. Check the 500 ohm resistor across the charge
1. Turn the control knob on the Battery-Starter
2. Turn the voltmeter selector switch to the 20-
3. Connect both positive test leads to the
4. Turn the load control knob in a clockwise di-
5. With the ammeter reading the required ioad
1. With ignition off and no electrical load on,
2. Connect the positive lead of the voltmeter to
3. Record the battery voltage reading shown on
1. Connect a tachometer to the engine.
2. Start the engine and increase speed to ap-

Source: manual:Ford CSG649 (6cyld) Service Manual.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.