1. Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!
  2. ALL NEW MEMBERS READ THIS FIRST!! Thank you for joining Heavy Equipment Forums! If you are new to forums we communicate with "Threads", please search our threads to see if your topic may have already been answered and if not then click "Post New Thread" in the appropriate forum. This will allow all of our members to see your question and give you the best chance to be answered. After you've made a number of posts you will graduate to Full Member status where you'll see a few more privileges. Following these guidelines will help make this the best resource for heavy equipment on the net. Thanks for joining us and I hope you enjoy your stay!!

IR T30 Truck Mounted Compressor

Discussion in 'Shop Talk' started by WCR73, Apr 18, 2017.

  1. WCR73

    WCR73 Active Member

    Joined:
    May 31, 2016
    Messages:
    35
    Location:
    CA
    Looking for anyone that has a Ingersoll Rand T30 compressor with the CH12.5 Kohler engine. I have one i'm putting together for my service truck. It came to me halfway taken apart. I need to know how the kickdown bullwhip cable from the unloader valve is hooked up to throttle linage on the engine. The T30's with the honda engines are hooked up a bit different.
     
  2. kshansen

    kshansen Senior Member

    Joined:
    Mar 11, 2012
    Messages:
    7,830
    Occupation:
    Retired Mechanic in Stone Quarry
    Location:
    Central New York, USA
    Last edited: Apr 19, 2017
  3. WCR73

    WCR73 Active Member

    Joined:
    May 31, 2016
    Messages:
    35
    Location:
    CA
    I'll take a couple pictures. My compressor is older. It uses the CH12.5 Kohler. The new ones use a newer CH440 with different throttle/governor linkage. that's not a bad price on a new one though!
     
  4. kshansen

    kshansen Senior Member

    Joined:
    Mar 11, 2012
    Messages:
    7,830
    Occupation:
    Retired Mechanic in Stone Quarry
    Location:
    Central New York, USA
    Do you have an IR model number for the compressor assembly(tank, motor and compressor), not jut the compressor itself? Might try emailing IR and see if they have any online manuals to down load.
     
  5. Ronsii

    Ronsii Senior Member

    Joined:
    Jun 26, 2011
    Messages:
    3,216
    Occupation:
    s/e Heavy equipment operator
    Location:
    Western Washington
    Ours has the kohler on it.... didn't remember it being a 12.5hp but probably is. Will try to get some pic tomorrow...
     
  6. sheepfoot

    sheepfoot Senior Member

    Joined:
    Feb 17, 2008
    Messages:
    1,259
    Location:
    wilmington nc
    I have one at work on our service truck, it was purchased at Grainger, I have the parts book and could give you the Grainger order page so you could find it on there parts site. It is a T30, seem to think it is a 12.5 Kohler around 14yrs old. Will look in the morning.
     
  7. WCR73

    WCR73 Active Member

    Joined:
    May 31, 2016
    Messages:
    35
    Location:
    CA
    I've tried to get a number for the whole unit, but all I can find is that it's a T30 which is pretty generic. The numbers I do have are,

    Engine: Kohler CH12.5S (spec 1936)
    Pump: IR 2475
     
  8. WCR73

    WCR73 Active Member

    Joined:
    May 31, 2016
    Messages:
    35
    Location:
    CA
    That sounds about right. Any pictures of the throttle linkage and how the bullwhip unloader cable hooks up would be awesome
     
  9. WCR73

    WCR73 Active Member

    Joined:
    May 31, 2016
    Messages:
    35
    Location:
    CA
    Yea mines about 15 years old, probably the same unit. Thanks for the help
     
  10. mikebramel

    mikebramel Senior Member

    Joined:
    Jul 16, 2012
    Messages:
    1,573
    Location:
    milwaukee
  11. Ronsii

    Ronsii Senior Member

    Joined:
    Jun 26, 2011
    Messages:
    3,216
    Occupation:
    s/e Heavy equipment operator
    Location:
    Western Washington
    Here are some quick pics of the unloader valve ,cable and interconnect with the throttle assembly:
    [​IMG]
    t30-1.jpg

    t30-0.jpg

    Ps. don't know if it's stock or not... it came with the truck and has never really worked all that great :)
    [​IMG]
     
    Last edited: Apr 22, 2017
  12. WCR73

    WCR73 Active Member

    Joined:
    May 31, 2016
    Messages:
    35
    Location:
    CA

    That's it! Thanks for sending the pictures. Exactly what I needed. Now I just need to make mine work!

    The engine runs good and that 2475 IR pump makes a crap ton of air so I'm excited to get this thing working. I'm setting up a F450 service truck for side work and it came with this compressor and a miller bobcat 225NT that will most likely need the TLC that my compressor is getting. They both sat for a long time and hadn't run. Will be worth it once it's all running though

    Thanks for the help fellas
     
  13. Ronsii

    Ronsii Senior Member

    Joined:
    Jun 26, 2011
    Messages:
    3,216
    Occupation:
    s/e Heavy equipment operator
    Location:
    Western Washington
    Yeah, it is a really good air maker that's for sure :) I think our motor may be getting weak, it runs fine at full speed but after it builds air and throttles back it doesn't like to rev up again without stalling out most of the time unfortunately... probably time to rip the carb apart again, last time it was full of white jello from the greener/cleaner/better fuel we are forced put in it.
     
  14. sheepfoot

    sheepfoot Senior Member

    Joined:
    Feb 17, 2008
    Messages:
    1,259
    Location:
    wilmington nc
    Our unit is a 2000, IR T30 model 2475F12.5G, info t30 2475 two stage (form SCD-761) owners manual (form SCD-748B) engine owners manual Kohler command 11-15 hp. horizontal crankshaft (form no TP-2473-C). Like Ronsii said, file shows two carb kits installed 2005 and 2009 with a note that 2015 parts not available new carb installed (Kohler kit complete). Gunk in carb, will not throttle up from idle on all internal work orders. I had thought this one came from Grainger, but it was Northern tool. Our other two speed air units came from Grainger with the 13 hp Honda engines.