Results 1 to 6 of 6
  1. #1

    Join Date
    Jul 2004
    Posts
    117
    Location
    Alberta, Canada
    Tractor
    L 245DT

    Default Over charging

    My kubota L245DT is over charging 16-18 volts. I replaced the regulator but it still overcharges. Any idea's??

    Thanks Bob [img]/forums/images/graemlins/confused.gif[/img]

  2. #2
    Veteran Member
    Join Date
    Aug 2001
    Posts
    1,386
    Location
    michigan thumb
    Tractor
    jd 970, JD GT235

    Default Re: Over charging

    sounds like a good amount to me, A good battery before starting should read 13-15 volts, your tractors regulator keeps a starter/components from being damaged. Using the analogy of inflating a tire to 30psi from 25psi you want you airhose pressure to start at 50psi or else the tire and tank will even out to quickly, in the extreme case of a 20psi line you would be deflating the tire

  3. #3
    Elite Member
    Join Date
    Jul 2003
    Posts
    3,373
    Location
    Goffs Corner, KY
    Tractor
    IH 2444

    Default Re: Over charging

    About the only other items that would cause overcharging would be the alternator or wiring.......Sounds like a short somewhere is causing it to charge wide open. Fix it or you will damage your battery and any electronics that your tractor might have.

    Good luck, I cannot give you any specific tests as I am not familiar with kubota charging systems, just charging systems in general.

    Ben

  4. #4
    Old Timer Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    51,936
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Over charging

    Depending on the external regulator setup.. I'd check the charge wire, for any fraying or chafing/ shorting. Another big cause of overcharging with an alternator and external vreg.. is a bad ground reference at the vr. Any voltage drop in the ground circuit of a vr will translate to the regulated voltage side as a higher charge rate.

    Soundguy

  5. #5
    Old Timer Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    51,936
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Over charging

    Charging voltage up to 15 volts is about the norm.. however.. a fully charged battery just sitteng there should not read 15 volts...

    Soundguy

  6. #6
    Gold Member ZJ_HR's Avatar
    Join Date
    Oct 2003
    Posts
    424
    Location
    Croatia
    Tractor
    '02 Same Argon70 4WD, '81 Store 402 4WD

    Default Re: Over charging

    Normal charging voltage when engine runs is 14.4V.
    Everything above this is bad, as electrolysis starts in battery, and battery is vapouring water.
    When you have so high voltage, seems refulator is fail or you haven't connection to battery, or batery is dead. Where did you have measured voltage, on alternator or battery connnection?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2016 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.