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Recent content by Juan Manuel Terra

  1. J

    Cat 120H Transmission

    Hi, how are you doing? I have the running clearance specifications for the clutches — could someone tell me if this measurement should be taken with the clutch pack compressed or free?
  2. J

    Cat 120H Transmission

    On both occasions I completely disassembled the transmission, checking all the clutches, their friction discs, and plates, without finding any defects other than the ones in the affected clutch. I don’t believe this is caused by a stuck clutch. Let me repeat the test I performed: The machine...
  3. J

    Cat 120H Transmission

    Exactly — and only the last disc in the clutch was damaged. It slipped out and blocked the piston from compressing the rest of the pack. All the other discs in that clutch were in perfect condition.
  4. J

    Cat 120H Transmission

    Sorry, but it’s still not clear to me. On page 11 it explicitly says that the directional clutches are A, B, and C.
  5. J

    Cat 120H Transmission

    Does anyone have a hydraulic schematic for this transmission? I’ve been searching everywhere but haven’t had any luck so far.
  6. J

    Cat 120H Transmission

    Quizás me pueda equivocar, pero la información que tengo indica que los embragues direccionales son el 1, 2 y 3. Los embragues con los que he tenido problemas son el 2 y el 3. También he verificado en la práctica que los embragues con presión modulada son el 1, 2 y 3, que corresponden a los...
  7. J

    Cat 120H Transmission

    Sorry for the delay in replying, but I needed to review the documentation. In the documentation I have, the so-called “directional clutches,” which are modulated by the clutch pressure, are Clutches 1, 2, and 3. The table you shared matches the one in my documentation. In my documents...
  8. J

    Cat 120H Transmission

    The machine was already showing the symptom before the first teardown, which was actually the very first time the transmission had ever been opened. I believe this symptom is what caused the damage first in Clutch 3 and later in Clutch 2. I understand the concept of three clutches being...
  9. J

    Cat 120H Transmission

    First of all, thank you very much for paying attention to my case and helping me in the search for a solution. I’d like to clarify that I haven’t finished assembling the transmission for the second time yet, so I still have the opportunity to check anything necessary. Let me share some other...
  10. J

    Cat 120H Transmission

    I’m working on a 120H, serial number P5FM04921. Initially, the motor grader had no power in reverse. It also had another issue: when engaging reverse in any gear and pressing the clutch, the machine would move forward. We decided to disassemble the transmission and found that the last...
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