Tractor charging system

[woody paul]

Had a problem with Ford 7600 charging, volt metre would only read 12.2 volts so fitted new alternator with no change. Checked all wiring and not found any problems.

This tractor has an alternator with battery sencor wire.

It's driving me mad.

[openspaceman]

42 minutes ago, woody paul said:

Had a problem with Ford 7600 charging, volt metre would only read 12.2 volts so fitted new alternator with no change. Checked all wiring and not found any problems.

This tractor has an alternator with battery sencor wire.

It's driving me mad.

The battery sensor checks the battery temperature and stops it boiling dry by cutting the feed to the alternator field coils in the rotor. Bypass this and see if it starts giving about 14V.

[woody paul]

Bypass by connecting sensor wire to battery? if yes I have done this with no joy. 

[aspenarb]

Is this the type of alternator thats externally regulated Paul ?

 

Bob

[woody paul]

2 minutes ago, aspenarb said:

Is this the type of alternator thats externally regulated Paul ?

 

Bob

No all in alternator.

[aspenarb]

Get the part number Paul, I have the woodautos data book and can look it up and see what terminals are on the back.

 

Bob

[openspaceman]

7 minutes ago, woody paul said:

No all in alternator.

Is it a lucas? Counties seemed to have 12acr alternators fitted and with those you take a lead from the igniton warning light straight to the smallest of the 3 spade terminals in the block (normally 2 brown and one white IIRC

[woody paul]

Think its 54022336E .

Picture shows back of alternator orange wire connects to sensor wire. 

[openspaceman]

30 minutes ago, woody paul said:

Think its 54022336E .

Picture shows back of alternator orange wire connects to sensor wire. 

Best wait for Bob, too modern for me

[woody paul]

To modern tractor is 1978.