Ford voltage regulator diagram

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Diagram and electrical diagram of the motorcraft voltage regulator which is the one used by the Ford brand.

Ford voltage regulator diagram


The motorcraft voltage regulator for external use is one of the most used for the replacement of relay regulators for its easy external installation and durability. This is not like GMs that come internally or embedded within the alternator itself.

Pin Description.

I: Indicator: This terminal turns on the regulator when connected to positive, it usually goes in series with a fault indicator lamp.

A: Alternator: Terminal that goes to the B + or BAT of the alternator. It is the voltage measurement terminal that goes to the battery.

S: Stator: Terminal that measures if the alternator is generating voltage. It goes to the S terminal of the alternator and in some models it can measure the tension of the star center or only the stator voltage without rectification.

F: Field: Terminal that controls the alternator field current. It goes to the F terminal of the alternator (it is the one that comes from one of the coals). Important to note that this terminal exercises positive control. That is, the other terminal of the field must be terrified.

Earth: Negative terminal of the regulator, this is to say hidden. The regulator must be solidly grounded to function properly.

Connection diagram of the Ford regulator to a Motorcraft alternator.

Esquema de regulador de voltaje ford

As you can see it is quite simple to implement, in this case just do not put an ammeter, but if you want to do it, you can place it between the positive of the battery and the bat terminal of the alternator, but be careful, just after the connection to terminal A.

Electrical connection scheme

For those who know a little below I leave the electrical connection diagram of the Ford regulator.

diagrama de regulador de voltaje ford

The capacitor is optional, many alternators do not bring it because sometimes it is embedded in the regulator.

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Written by:

Dennis García.

Chica Mecánica

Grade 
08/21/2019

Super útil

Gracias por este diagrama, lo necesitaba.

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    Ford voltage regulator diagram

    Ford voltage regulator diagram

    Diagram and electrical diagram of the motorcraft voltage regulator which is the one used by the Ford brand.

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    • Asked by Franklin
      on 09/11/2019
      Hola. Tengo un Suzuki alto K10. Se dañó el regulador y adaptaron otro pero siento que quedó diferente. El regulador original tenía 4 pines, el nuevo tiene 3 y colocaron otro conector sin cortar el original. Este otro pin hace falta? Creo que es el F. ES MUY IMPORTANTE TENERLO? ( Siento que quedó corto de fuerza. Tiembla cuando estoy en ralentí y enciendo luces.) Gracias Answer:
      Si cortocircuitaron o pusieron con resistencia el borne (F) del alternador, no hay regulación de voltaje, es muy importante que este borne este controlado. Si me envias un modelo del nuevo regulador o las iniciales de los bornes, puedo darte una mejor ayuda.

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