Unofficial Allis Homepage
[Main Page] [Owners Registry] [Allis Store] [Parts Etc.]
Forum Home Forum Home > Allis Chalmers > Farm Equipment
  New Posts New Posts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

190 XT Alternator question

 Post Reply Post Reply
Author
Message
Jdnut View Drop Down
Bronze Level
Bronze Level


Joined: 26 Nov 2009
Location: Washington Stat
Status: Offline
Points: 10
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jdnut Quote  Post ReplyReply Direct Link To This Post Topic: 190 XT Alternator question
    Posted: 08 Mar 2010 at 11:39pm
Ok I am working on my 190XT Diesel.  Now that I have the glow plug/manifold heater working is sure starts better!  Now for another electrical issue.  My 190 has an alternator on it.  It was of course bad,  so I bought another.  Externally regulated.  New regulator as well.  I can't seem to get a charge out of it.  My Operator's manual show wiring diagrams for the 190D with a generator.  Is there a difference from the wiring for the generator?  I checked it all out today, and the wireing is correct for a Generator.  Do I need to add or change anything for the alternator? 

   Chris
Back to Top
Sponsored Links


Back to Top
DrAllis View Drop Down
Orange Level
Orange Level


Joined: 12 Sep 2009
Status: Offline
Points: 4307
Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2010 at 6:57am
All 190's had an alternator. Only three wires to connect...Battery wire, ground wire and signal wire goes to the square plug (which comes from the regulator). There has to be power at the battery connection and at the signal wire (when running) if the regulator is doing it's job. Are you sure your ammeter is any good?? When you turn on the ignition key the regulator (under the dash hood)usually will "click" if it's got any chance of being good. Also has to be a good ground at the regulator.
Back to Top
Jdnut View Drop Down
Bronze Level
Bronze Level


Joined: 26 Nov 2009
Location: Washington Stat
Status: Offline
Points: 10
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jdnut Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2010 at 8:50am
Ok,  It looks like what I am missing is the power at the signal wire (green wire from F terminal on regulator to F terminal on alternator)  The terminals on the regulator are F, then 1, 2, 3.  F is connected, 2 is power from the Key,  3 is always hot from the starter.  When I check my F wire with a multi-meter It has continuity with ground with the key off.  I will check it key on.   when I go back today.  Sounds like something may be amiss wiith the regulator then.. 

         Chris
Back to Top
Jdnut View Drop Down
Bronze Level
Bronze Level


Joined: 26 Nov 2009
Location: Washington Stat
Status: Offline
Points: 10
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jdnut Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2010 at 8:53am
I forgot to address the part about the ammeter.  It shows a slight discharge when the glow heater is used and larger discharge when cranking.  I never get anything higher than battery voltage from the hot wire at the alternator, and no voltage from the F wire when running. 

   Thought maybe I had missed something but it sounds like my new regulator is not doing it's job. 

    My 190 owners manual shows a generator as standard and mentions an alternator as optional..  but then it's not an original manual but a reprint so it could be somewhat generic..

      Chris
Back to Top
skipwelte View Drop Down
Orange Level
Orange Level


Joined: 29 Oct 2009
Location: Danbury, Iowa
Status: Offline
Points: 646
Post Options Post Options   Thanks (0) Thanks(0)   Quote skipwelte Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2010 at 4:55pm
Check for the "click" when you turn the key switch on.  if it doesnt click, the alt wont charge.  Be sure the regulator is grounded too, no to itself, but to the hood frame.
Back to Top
Jdnut View Drop Down
Bronze Level
Bronze Level


Joined: 26 Nov 2009
Location: Washington Stat
Status: Offline
Points: 10
Post Options Post Options   Thanks (0) Thanks(0)   Quote Jdnut Quote  Post ReplyReply Direct Link To This Post Posted: 09 Mar 2010 at 11:19pm
I have it all figured out now.  The 'new' voltage regulator installed by the shop that last worked on it is bad.  New one tomorrow should fix everything. 


Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 10.03
Copyright ©2001-2011 Web Wiz Ltd.

This page was generated in 0.078 seconds.


Help Support the
Unofficial Allis Forum