• 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!

Search results

  1. O

    Refurbished PC50UU-1

    Recently purchased a rebuilt PC50UU-1. Was a little skeptical of the rebuild, the exterior looks like it’s right off the showroom floor, the internals I’m still verifying. Did a compression test on the engine, came up with 425, 345 & 380, a deviation of 22%, highest to lowest. It’s my...
  2. O

    Komatsu Hydraulic Fluid Recommendation?

    You can get them online, but it’s not the actual manual, it’s a file that goes for around $15. Download it and print it out. Komatsu Pc50UU-1 Excavator Service/Repair Manual PDF Download - PDF WorkShop File Komatsu_Pc50uu-1_Shop_Manual_Serial_Number_1001_And_Up.pdf Download Link...
  3. O

    Komatsu PC50uu-1 hydraulic problem

    Just bought this PC50UU-1, company buys them in Japan, ships them to Vietnam, where they’re allegedly disassembled and rebuilt and shipped to the west coast. Can’t pic up a log with the thumb, guessing hydraulic issue as discussed here. It’s gorgeous on the outside, still going through...
  4. O

    Komatsu PC50uu-1 hydraulic problem

  5. O

    Komatsu PC50UU-1

    Purchased a refurbished excavator from a company that buys them in Japan, ships them to Vietnam to be rebuilt, allegedly from the ground up. It’s near impossible to start cold, no block heater. I did a compression test, 1-425, 2-350 & 4-380 psi. That’s a deviation of almost 22% from high to...
Top