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    Link belt 240lx hydraulic head scratcher

    One more thing Jeff. Do you or anyone else know how to reset the "service due" on the display? Thanks
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    Link belt 240lx hydraulic head scratcher

    It was a nice day here today(not raining),so I thought I would tear into the main valve and start checking all the reliefs and ports that Jeff showed me. Pulled it apart hot. Pulled spool end caps. Pulled arm 2 spool out. Looked good ,moved freely. Pulled arm 1 spool ,hmmm stiff. It moved very...
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    Link belt 240lx hydraulic head scratcher

    Yes there is another small pump on the other side of the pilot pump towards the motor. Yes you are correct, tracks are sluggish when stick acts up,but if I feather the dipper out it speeds tracks up to normal. I was watching pressures and with no service selected p1 had 1800 psi on p1 and p2 was...
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    Link belt 240lx hydraulic head scratcher

    I talked to the mechanic and my machine doesn't have the hose burst check valve option. Jeff where abouts on the main valve would I find the regeneration valve? As for your question on the tracks it travel straight it just seems to be very slow for 2 to 5 seconds and then it seems to kick out...
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    Link belt 240lx hydraulic head scratcher

    Hi john thanks for your input. It is a Waratah 622b head. It was paired right from new from the dealer as far as I know. The attachment rotate is plumbed from a small pump behind the pilot pump.
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    Link belt 240lx hydraulic head scratcher

    Thanks Jeff. I was wondering about that regeneration system. I think that could suspect as when it acts up the track speed is slow for 2-6 seconds.its really hard to read that manual from the picture. What manual is it? And where can I buy one?
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    Link belt 240lx hydraulic head scratcher

    Well got the machine warm today and the problem is back. Stick in is very slow and laboring the motor. On the schematic there is a hose burst check valve would that be on the cylinder. I think this is the next place to start looking as the stick out function works perfect. Have you ever seen...
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    Link belt 240lx hydraulic head scratcher

    Also,what is the arv on the valve that jcb gave you the tool to reseat. Sound interesting. Could that cause a spool to drag?would you have to pull the spool to look in the port? Sound interesting.
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    Link belt 240lx hydraulic head scratcher

    Thank you so much for your help Jeff. Your knowledge of the sumitomo brand is impressive. I've ran a day and a half with the new pilot pump. So far so good. I'm thinking that maybe the stick spool (or dipper as you call it on your side of the pond;) is lazy or sticky and was the first symtom of...
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    Link belt 240lx hydraulic head scratcher

    Is this the same as the negative pressure that comes up on the diagnostic screen with the P1 and P2 pressures? Here is a picture of the valve itself like I said we swapped the load hold check valves on the outside from the boom of the stick and the problem stayed with the stick. I'm positive...
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    Link belt 240lx hydraulic head scratcher

    Pulled end cap off,everything looks fine. What exactly is a negative control pressure test? Cylinder does not creep if boom and stick are left in the air. It only acts up when you work it hard and temps get warm. Put the new pilot pump on yesterday. Haven't worked it real hard yet ,but will see...
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    case cx210 engine pulls down

    Would someone mind forwarding me the hydraulic updates.ive been dealing with similar problems. Thanx
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    Link belt 240lx hydraulic head scratcher

    That's a really good idea to put a gauge at the end of the spool to watch pilot pressure. New pilot pump just came in. I'll see if it makes a difference.
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    Deere 200clc spool issues??

    Did you ever figure this out? If so what was it?
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    Link belt 240lx hydraulic head scratcher

    Thought I would run it past some of the sharp fellas that look on this forum. I'll start from the beginning,machine is a 2006 240lx with a Waratah 622b processing head. When machine gets warm that is when it starts acting up. after about an hour of running the stick will start to slow and pull...
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    2004 Isuzu 6SD1 Spluttering Running on 3cyl

    sounds like the same problem except ours was putting out white smoke too. We had and it turned out to be a resistor on the machine side for the fuel pump.
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    Kobelco hydraulic excavators

    Gauge cluster not working 1996 MKIV 200 LC SNYQU2739 noticed today that in addition to the temperature, fuel gauge, and travel speeds the hour meter is not working either. The only thing working is the auto accel light.
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    Kobelco hydraulic excavators

    My apologies for not including what you so clearly ask for. 1996 MKIV 200 LC sn SN SNYQU2739
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    Kobelco hydraulic excavators

    1996 MKIV sn0002739 Gauge cluster display months ago began to 'reset' while running. By 'reset' I mean the Screen would go blank, sound toned with three tones then the screen would reset with the word "OK" in the display along with the temperature and fuel 'column bars' maxing out. All the...
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