Mf 4370 earth points/charging problems

[daveydiesel1]

Having problems with charging, checking earth points. Have cleaned the 1 beside the battery and the 1 beside the alternator. Is there any others? I put a new alternator on her and made no difference. Any other ideas?

 

[Monty]

I had charging issues with our 4270. It was the pulley on the alternator that was worn out. Even though it was turning and seemed ok, it wasn't charging properly until replaced.

 

[daveydiesel1]

I had charging issues with our 4270. It was the pulley on the alternator that was worn out. Even though it was turning and seemed ok, it wasn't charging properly until replaced.

Mine doesnt look worn,has new belts and theyr tight, il look at that tomorrow. @dee Do yiu have any suggestions

 

[Mur Huwcun]

Dash light working? Continuity between alternator feed wire and battery or top of starter solenoid? Seen lots of tractor where wire has burned off in the crimp on the starter solenoid

 

[mo!]

I had charging issues with our 4270. It was the pulley on the alternator that was worn out. Even though it was turning and seemed ok, it wasn't charging properly until replaced.

An issue on the 5610 as well. The pulley has a sprag bearing clutch which wears out.

 

[daveydiesel1]

Dash light working? Continuity between alternator feed wire and battery or top of starter solenoid? Seen lots of tractor where wire has burned off in the crimp on the starter solenoid

Yes light doesnt go out properly, so just fully check the largest wire on the alternator right back to the starter?

 

[Mur Huwcun]

Yes light doesnt go out properly, so just fully check the largest wire on the alternator right back to the starter?

Yes or right back to wherever it goes. Easy test would be jump lead from alternator to battery positive, you could earth the alternator with a jump lead aswell and even bypass the charging light by substituting it for a light probe tester. Croc clip to live and probe on alternator small wire.

 

[Mur Huwcun]

Does the light go off if you disconnect the small wire off alternator?

 

[daveydiesel1]

Never tried disconnecting it, will try later. If it does what does that mean?

 

[Mur Huwcun]

Never tried disconnecting it, will try later. If it does what does that mean?

With engine off, ignition on and small wire disconnected light should be off. If it stays on or is dim the loom is earthin aomewhere else

 

[daveydiesel1]

With engine off, ignition on and small wire disconnected light should be off. If it stays on or is dim the loom is earthin aomewhere else

Ok, never knew that. Il see how i get on here