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  1. R

    Need shop manual for Hyundai R210w-9S

    Hi guys, Looking for shop manual of Hyundai R210w-9S wheel excavator. Pls. if any can help. Thanks
  2. R

    Cat 320D slows down

    Yeah replaced it with new injectors all six. Unfortunately there is a 50% chance on repairing it.
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    PC220-7 right track slow

    Two stage relief valve of two stage solenoid in the solenoid valve under the control valve. Checked what you mentioned. They are OK. There are two safety relief valves of on the other side of the hammer line block section with some markings on it. Can I increase pressure from there also.
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    PC220-7 right track slow

    Thanks. Will read it.
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    PC220-7 right track slow

    filters are new. I checked before replacing. They were fine
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    PC220-7 right track slow

    Note: Sorry for the wrong title. Its a PC210-8 not PC220-7 Hi, I have a PC210-8 2009. Made in UK. Recently I noticed the right track and the hydraulic breaker gets slow after 2 hours of work. The hydraulic temp is normal. Dont know for some reason the right track pressure shows 320 bars while...
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    Komatsu PC220-7 issue

    Will do the time cycle test. You forgot to tell me about the safety-suction valve thing. What is its function in the control valve. Will playing with it increase efficiency of the machine?
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    Komatsu PC220-7 issue

    I have seen komatsu pc200 dash 7 and 8 overheating. I have done a lot like roding rads, cleaning hydraulic oil cooler, installing thick sponge everywhere so the air coming from the fan doesnt escape but no use. Is there something else I could do for the overheating issues. In addition, is it...
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    Komatsu PC220-7 issue

    Hi, There are some safety-suction valves on the control for each actuator. How do I check or calibrate if needed. There is a big valve named as 2-stage safety-suction valve for the service valve on top. How would I know its calibration is OK hence no need to play with it.
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    Komatsu PC220-7 issue

    Got it. John can you search for me where it is exactly located in dash 7 because I have searched the back side of the control valve a lot for this valve but couldnt find it. Is it next to the back pressure valve somewhere? This is how it looks like from the back.
  11. R

    Komatsu PC220-7 issue

    Also John can you explain what is the function of this regeneration valve and how can I know if its working good or not. Keeping in mind my arm in function is also slow and it stops like 2 to 3 secs midway. How can I check LS pressure to know whether the pump is stroking up or not?
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    Komatsu PC220-7 issue

    Checked the readings on 11 and 12. The numbers are changing so fast between 150 and 180 on both so cant figure out the exact reading. Plus John I was reading the manual they talking something about regeneration valve for boom and arm. Where is this located?
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    Komatsu PC220-7 issue

    No failures recently. The machine has 23000 hours on it.
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    Komatsu PC220-7 issue

    Hi John, Tried all that you pointed at but now used. I think there is something in the control valve or the solenoid valve itself because two functions are slow. The arm digging and the left track. When track sticks are operated opposite to each other together for steering the tracks become so...
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    320D Hydraulic oil overheating

    I had the same issue. Just had the clutch wire disconnected and the fan started moving at full speed. Its been 4 years now no heating issues.
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    Komatsu PC220-7 issue

    Yeah. There are no fault codes. Plus sometimes I need to push the hi or low button several times to shift speed. I have checked each an every spool in the solenoid valve. None of them are stuck. But for some reason I sometimes suspect the solenoid valve for all issues with the machine like...
  17. R

    Komatsu PC220-7 issue

    Tried it. The tracks stops moving. It has only two speeds. Hi and low
  18. R

    Komatsu PC220-7 issue

    Thanks John. The machine travels straight. But the left track is a little bit stronger than the left. Dont know how to check the travel speed shift
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    Komatsu PC220-7 issue

    Hi, What I know is when single travel lever is operated forward or reverse only one oil pressure switch/sensor located on the merge-divide valve of the control valve designated for that particular side of pump should display pressure on the screen. Why is that when I operate the right travel...
  20. R

    PC220-7 right track and arm in problem

    The machine is around 23000 hours
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