Announcement

Collapse
No announcement yet.

Bobcat 225G Plus

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Bobcat 225G Plus

    Hey Jeff, I picked up a older bobcat to play with, it spose to run but not weld.

    So I had a quick look at it so far and found the fuel pump broke, so I have to fix that first and then get a run check in.

    Any good place to start looking for a problem???????

    Or is there a service manual to show test points?

    S/N KE724329

    Thx Railmen
    2007 Trailblazer 302G
    2004 Invision 354MP
    1999 60 series feeder
    2005 Maxstar 200DX
    2007 CST280
    1999 HF 251-1
    older Hobart hefty wire feeder
    Hyperthrem 600
    Maxstar 150S(such a cute welder)
    had and sold........
    2003 XMT 304CC/CV
    1947 Lincoln SA200G short hood
    1963 Lincoln SA200G
    1975 Lincoln SA200G(best machine ever had )
    1970's Lincoln SAE400G
    2 Maxstar's 200DX's
    1 Maxstar 200SD
    CST 280
    2 CST 250
    MM130


    Railmen

  • #2
    I had one of those welders . If it won't weld or make 120v I would start at the main fuses that was a weak spot on mine. If it makes 120v but won't weld these guys will help you. There's a op manual on miller site.

    Comment


    • #3
      Here is the manual that is correct for your serial number..

      http://www.millerwelds.com/om/o403a_mil.pdf

      AND...

      Here is the Service manual for your Onan P216 engine..

      http://www.cumminsonan.com/www/pdf/manuals/965-0762.pdf

      Gotta make it run first...
      Last edited by H80N; 03-04-2014, 07:38 AM.
      .

      *******************************************
      The more you know, The better you know, How little you know

      “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

      Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

      My Blue Stuff:
      Dynasty 350DX Tigrunner
      Dynasty 200DX
      Millermatic 350P w/25ft Alumapro & 30A
      Millermatic 200

      TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

      Comment


      • #4
        Originally posted by H80N View Post
        Here is the manual that is correct for your serial number..

        http://www.millerwelds.com/om/o403a_mil.pdf

        AND...

        Here is the Service manual for your Onan P216 engine..

        http://www.cumminsonan.com/www/pdf/manuals/965-0762.pdf

        Gotta make it run first...
        Thx for the motor manual, did not have that one.....

        the regular owners manual don't really tell you a whole lot.... kinda need a service/tech manual.

        Railmen
        2007 Trailblazer 302G
        2004 Invision 354MP
        1999 60 series feeder
        2005 Maxstar 200DX
        2007 CST280
        1999 HF 251-1
        older Hobart hefty wire feeder
        Hyperthrem 600
        Maxstar 150S(such a cute welder)
        had and sold........
        2003 XMT 304CC/CV
        1947 Lincoln SA200G short hood
        1963 Lincoln SA200G
        1975 Lincoln SA200G(best machine ever had )
        1970's Lincoln SAE400G
        2 Maxstar's 200DX's
        1 Maxstar 200SD
        CST 280
        2 CST 250
        MM130


        Railmen

        Comment


        • #5
          The op manual should show all the fuses I would start there and then look at the slip rings.

          Comment


          • #6
            remove the top cover, you'll see the fuses right away

            Comment


            • #7
              Once you get it running, if it produces auxiliary power but just won't weld, it's not a failed field current fuse F1.

              Check to see if it has weld output in CV mode. If no output in CC mode but output in CV mode, there is a connection between stator output lead #72 and reactor AC-Z input that has been known to fail resulting in no CC output but still have CV output.
              MM200 w/spot controller and Spoolmatic 1
              Syncrowave 180 SD
              Bobcat 225G Plus LPG/NG w/14-pin*
              *Homemade Suitcase Wire Feeder
              *HF-251D-1
              *WC-1S & Spoolmatic 1
              PakMaster 100XL
              Marquette "Star Jet" 21-110

              Comment


              • #8
                Originally posted by duaneb55 View Post
                Once you get it running, if it produces auxiliary power but just won't weld, it's not a failed field current fuse F1.

                Check to see if it has weld output in CV mode. If no output in CC mode but output in CV mode, there is a connection between stator output lead #72 and reactor AC-Z input that has been known to fail resulting in no CC output but still have CV output.
                Will do sounds like a good spot to have a look, fuel pump should be in tomorrow and run checks on friday night or Sat.

                Thx Railmen
                2007 Trailblazer 302G
                2004 Invision 354MP
                1999 60 series feeder
                2005 Maxstar 200DX
                2007 CST280
                1999 HF 251-1
                older Hobart hefty wire feeder
                Hyperthrem 600
                Maxstar 150S(such a cute welder)
                had and sold........
                2003 XMT 304CC/CV
                1947 Lincoln SA200G short hood
                1963 Lincoln SA200G
                1975 Lincoln SA200G(best machine ever had )
                1970's Lincoln SAE400G
                2 Maxstar's 200DX's
                1 Maxstar 200SD
                CST 280
                2 CST 250
                MM130


                Railmen

                Comment


                • #9
                  Ok it's running

                  Ok I have it running, it's not at full power yet, but a little tune up should help that.

                  No power no where.

                  What voltage should I have coming from excitition and going back into the rotor after going through the bridge rect.?

                  Railmen
                  2007 Trailblazer 302G
                  2004 Invision 354MP
                  1999 60 series feeder
                  2005 Maxstar 200DX
                  2007 CST280
                  1999 HF 251-1
                  older Hobart hefty wire feeder
                  Hyperthrem 600
                  Maxstar 150S(such a cute welder)
                  had and sold........
                  2003 XMT 304CC/CV
                  1947 Lincoln SA200G short hood
                  1963 Lincoln SA200G
                  1975 Lincoln SA200G(best machine ever had )
                  1970's Lincoln SAE400G
                  2 Maxstar's 200DX's
                  1 Maxstar 200SD
                  CST 280
                  2 CST 250
                  MM130


                  Railmen

                  Comment

                  Working...
                  X