Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Please note that it is not permitted to have referral links posted in your signature. Keep these links contained in the appropriate forum. Thank you.

https://www.boards.ie/discussion/2055940817/signature-rules
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Battery light on, no charge (old system)

  • 20-05-2013 2:50pm
    #1
    mickdw
    Registered Users, Registered Users 2 Posts: 23,688 ✭✭✭✭


    Ive looking at a tractor here with alternator and external voltage regulator.
    It has stopped charging and is showing the battery light on the dash when running.
    Its a 3 wire alternator (1 large battery wire, and 2 light guage wires)
    The regulator has 4 connections.

    If I put battery power direct to one of the small connections on the alternator, it charges fine. When I check the actual feed to this same connection it has 12v but immediately drops to 2 or 3v when connected to alternator. Battery power direct to this point and connected to alternator will not drop down at all.

    I therefore figuring that the wiring of the tractor possible the regulator is not giving the proper voltage to 'excite' the alternator.

    Any advice.


Comments

  • #2
    hiltan
    Registered Users, Registered Users 2 Posts: 22 ✭hiltan


    Check the wiring of alternator and battery also may be there is current leakage,


  • #3
    jimmyw
    Registered Users, Registered Users 2 Posts: 3,382 ✭✭✭jimmyw


    Sounds like the wire to the terminal that you are checking has a bad connection and is breaking down when the load is applied.Check along the length of the wire and where its connected to.A new length of wire might cure it.


  • #4
    mickdw
    Registered Users, Registered Users 2 Posts: 23,688 ✭✭✭✭mickdw


    jimmyw wrote: »
    Sounds like the wire to the terminal that you are checking has a bad connection and is breaking down when the load is applied.Check along the length of the wire and where its connected to.A new length of wire might cure it.

    Have a new regulator on the way so will try that but yes if that doesnt work, I will have to trace back that wire.


Advertisement