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  1. Syleng1

    Hitachi Ex120-2 slowly armor plating

    I don’t take my EX-120-2 off my farm. But most of my property is woods. I’ve bounced off a few trees and found my side doors were bondo city. So being I own a welding shop I decided to build the side doors out of 1/8” steel diamond plate. Rolling the tops and contour the factory doors to match...
  2. Syleng1

    How to determine if my machine can run a hammer? EX-120-2

    On my Hitachi EX120-2 I’ve got hydraulics to my thumb. The lines are 3/4” steel and #12 4 wire hoses. At the end of the stick are boxes with a flow control. Foot pedal in the cab is a 3 way pilot valve. On/off/on Excuse my ignorance- but how do I determine if I can run a hammer off this set up...
  3. Syleng1

    Pins and bushings- Mottrol any one have opinion?

    So - my machine EX120-2 and I’m rebuilding the boom to the stick joint. I went with a genuine pin but aftermarket bushings from Mottol as seen on eBay and Amazon for less than 1/2 cost of factory. 2 bushings arrived and so far it looks good. I will be pressing them in possibly this weekend. I...
  4. Syleng1

    Worth it? Aftermarket transmission deep pans for pickup trucks

    QUESTION: I went on line to see who has the best aftermarket cast aluminum pan for my 3500 diesel pull truck (hauling equipment on trailers, not like harvest festival and truck show mud bogs). I see a lot of "For" and the same amount of "Against" for switching in a deep aluminum transmission pan...
  5. Syleng1

    Replacement hydraulic oil for dealer recommended

    So on my 30 year old Hitachi EX120-2, My parts dealer (local JD construction dealer) tells me to use Hy-Guard for my hydraulic oil. I forget now what the factory oil should be or was. Typically I top off with a better quality Tractor transmission oil like Napa or Mobil. I am getting ready to...
  6. Syleng1

    Hitachi EX120-2 Cab removal. -3,-5, EX 100-2,3,5, EX 200-2,3,5 ( all similar cabs)

    I've got an Hitachi Ex 120-2 excavator that I need to remove the boom from the main body of the machine to line bore out the pin surface on both the body mount and the boom and then weld up the whole thing and machine it back to proper specs. I own a welding company and I just bought a new line...
  7. Syleng1

    New Workmaster 70 electrical gurus needed

    Afternoon folks, My 2022 Workmaster 70 loader tractor pulls my Bandit 200+ wood chipper very easily. But when I go out into the woods to chip brush, going down some big hills on my property the chipper pushes the tractor around a bit. (Rear tires are weighted too.) So I have on the back of the...
  8. Syleng1

    Front idler, pillow block wear question EX 120-2 Hitachi

    Good Afternoon, I'm replacing a track chain on my Hitachi EX 120-2 with 3400 hrs (yes still a pup) I bought the machine about 4 years back and only have put about 40 hours on it. Previous owner did not treat it very well. I've been cleaning up messes along the way. The track chain being...
  9. Syleng1

    JD 450e clutch question- wrong Pp?

    So I bought a 86’ John Deere 450e dozier over the summer. Bad clutch- slips when hot. I’ve been working on it since about 98’ for the customer. Right now it has 3,889 hrs documented. TO450EC732442 I just pulled the engine and found what looks like a pressure plate for a steering clutch engine n...
  10. Syleng1

    Hitachi PVC question

    Quick question: Hitachi EX120-2 My hydraulics are getting slow after warm up - previously I asked questions about swing only but now tracks are slowing and eventually the arm and boom movements are getting choppy after run time. 0-20mins all is well 20-30 mins of time loose swing speed 30-35mins...
    • Syleng1
    • Thread
    • ex120-2 slow hydraulics solenoid
    • Replies: 3
    • Forum: Excavators
  11. Syleng1

    Hitachi ex120-2 question

    On a EX120-2 where is the proper place to take the regulated pilot pressure reading and how do you adjust it. I’ve got 1000psi out of the port right on the pilot pump outlet. I know that’s not right. I found a regulator on the 3 valve - valve body. I am not sure if that is adjustable. It’s...
  12. Syleng1

    AUSA fork lifts- need a dealer in the states

    I own a C11m AUSA forklift made in Spain. It is an amazing forklift and goes places others won’t. Carry’s more weight than I could imagine but it is time for a clutch as I am out of adjustment. I figure I have about 6months of weekly use and I will be slipping. Any one know of a dealer in the...
  13. Syleng1

    Technical Service manual for JD 450E?

    Hello to all, I know I have received a lot of good info on this site and to all knowingly and unknowingly contributed... Thank you! I recently bought a John Deere turbo 450E dozier from a customer. It has only just over 4K on it, undercarriage is approx. 70% and they just replaced the...
    • Syleng1
    • Thread
    • john deere john deere 450e service manuals
    • Replies: 4
    • Forum: Dozers
  14. Syleng1

    Hitachi EX swing issue

    Hitachi EX120-2 Excavator 1995 4,500hrs. I'm having issues with the swing motor. At first it would act lazy after 2-3 hrs. of use and now it barely swings after 10 mins from cold to warm. Meaning it moves left or right but at about a foot per 5 seconds with the bucket and arm curled in. Forget...
    • Syleng1
    • Thread
    • ex120-2 hydraulic pressure problem
    • Replies: 8
    • Forum: Excavators
  15. Syleng1

    Ex120-2 slow hydraulics

    Hitachi EX120-2 4500hrs. I tried to search this but my results were minimal and not relevant. I’ve had this machine 1.5 years and bought it whooped. Engines runs great and no smoke. Plenty of power but Hudraulics are leaking and pins and bushings are sloppy from previous owners lack of maintance...
    • Syleng1
    • Thread
    • ex 120-2 hitachi slow hydraulics
    • Replies: 4
    • Forum: Excavators
  16. Syleng1

    Ex120-2 boom pin and bushings

    Hey gang. I have a Hitachi EX120-2 with a loose boom to frame pin and bushings. I’m having a tough time finding a new pin and bushings or at least a company to sell me a set. I’ve tried to look up the parts numbers in my parts catalog but they don’t pop anywhere on the web. Even if I knew the...
  17. Syleng1

    JD 310C has no steering

    Hello all- kinda new posting here but I’ve been reading your material for years. Really good stuff here for sure. So I’ve got a JD 310c backhoe. Steering just stopped working after shutting off the machine for lunch. I first dropped both lines to the steering cylinder. Very little pressure...
  18. Syleng1

    Hitachi EX120-2 boom question- compatibly

    So I am rebuilding my own EX120-2 and I am just about done with bucket and starting on pins and bushings. I found the main boom pin is also worn. The previous owner must have been allergic to grease. So I’m planning on removing the boom from the top of the machine and rebuild that pin and...
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