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  1. N

    John Deere 770G hydraulic overheating.

    I would like to document this. could you share images or anything helpful?
  2. N

    John Deere 770G hydraulic overheating.

    DAMNNNN
  3. N

    Genie telehandler tilt and self-leveling problem.

    Can you share the hydraulic schematic?
  4. N

    Excavator bucket position error changes when slewed topcon

    Which model?
  5. N

    2018 Komatsu D61

    @LACHAU Please share schematic
  6. N

    Rotator Systems of Recovery Equipment

    @Truck Shop Thanks, do you have any miller / NRC rotator service manual or hydraulic schematic?
  7. N

    Rotator Systems of Recovery Equipment

    Hello, I come from the construction equipment industry and have recently been trying to understand recovery equipment particularly rotator systems from companies like Miller Industries, NRC, and Jerr-Dan in more depth. I’m especially interested in studying the hydraulic aspects of rotators and...
  8. N

    Conexpo 2026

    Would love to see pics!
  9. N

    VOLVO EW180C issues after pumps and MCV service and rebuild

    your work points most strongly to issues in the control side of the pump, rather than a simple low‑relief‑pressure problem. Check Load‑sensing (LS) signal: crushed, incorrectly connected, leaking, or partially blocked LS line between MCV and pump controller, or incorrect LS margin setting...
  10. N

    Cat 730 Fan Motor Slow B1M Serial

    Cannot open the link.
  11. N

    Cat 730 Fan Motor Slow B1M Serial

    Hydraulic schematic would help a lot
  12. N

    Bobcat e20 pilot hose

    Happy we could help!
  13. N

    NH lb75B steering and stabilizers do not work.

    Seems issue with steering unit's relief valve. Check it's crack pressure, seems it get cracked before it's pressure so oil choose to go away through least resistance. Refer: epichydraulic.com/steering
  14. N

    Noob looking for help: Komatsu PC50UU-2 how to swap controls ISO/SAE

    @uffex had very informative site too.
  15. N

    John Deere 50G Excavator case drain PIN 1FF050GXJNH297017

    Ok
  16. N

    John Deere 50G Excavator case drain PIN 1FF050GXJNH297017

    Please see the attached recommendation for not filtering case drain line. I agree there can be machines having case drain filters, but filtering prior to case drain is the rightful choices.
  17. N

    330B slow stick in , slow bucket curl

    Pull the stick and bucket control spool assemblies & Inspect for: Scoring, scratches, or rough machining on the spool lands Burrs or contamination in the bore Corrosion or varnish deposits (common in older machines or with old fluid) Verify spool moves freely by hand without binding --- Your...
  18. N

    Hitachi ZX 200-5G

    Check relief valve, restriction, low oil level
  19. N

    John Deere 50G Excavator case drain PIN 1FF050GXJNH297017

    The case drain must be Free flowing, Low pressure (typically < 1–2 bar) and Direct to tank If you add a filter in between It creates back pressure, Motor shaft seals can blow out, Internal leakage increases, The motor can catastrophically fail even when healthy, On piston motors - the rotating...
  20. N

    John Deere 50G Excavator case drain PIN 1FF050GXJNH297017

    If the motor fails, contamination is handled by the return filtration and tank management, but restricting the case drain with a filter risks over-pressurizing the motor and causing immediate catastrophic seal failure. Case drains must remain unrestricted to tank.
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