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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    I wander when the inside pump is activated, and it stalls the engine there is some sort of recirculation valve that is closed? Just a thought. Thanks Bryan
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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    Hey finally got the test done here are the results. Test 1 No 14 C1 4.9 v 450k C2 0.4 v 0P No 15 B16 0.0 v 0 k B17 0.0 v 0 k No 20 D1 Comp 350 ma 6 pk Meas 356 ma 6 pk No 24 E1 Comp 350 Ma 6 pk Meas 356 ma 6 pk Power shift 0 Test 2 No 13 B9 3.8v 24p B10 3.8v...
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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    Tested and results as follows: 12 B-7 .6v-4.9v 1P-30P B-8 .6v-4.9v 1P-30P 14 C1 .7V-.7v 36-36p C2 .4v P2 0p 24 E1 P1 350MA 6P 350-356MA Power Shift 0 25 E-2 P2 350MA 6P 351-356MA Power Shift 0 13 0.38v 0-25p 0.37v 0-24p 9 0-4.8v...
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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    Thanks for the information! I did start at the 2 main pumps and found the screens where clogged. Cleaned them out and started engine with 24 volt to solenoids on main pumps and the engine quickly struggled and stalled. After testing each pump seperately the pump that stalls the engine is the one...
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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    Also Is 700PSI enough pilot pressure?
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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    Hello again I wanted to reach out to you with an update on the machine. I was unable to work on it for a long time but recently did some more diagnosing by following the pilot pressure from the pump to the valve block under the cab and found a blocked screen. Now i have pilot pressure and the...
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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    Ok thanks so much for the diagram thats great information. I will locate the filter and check the line to and from and let you know what I find. Im glad the great mystery of my machine is almost over!! Thank you, Bryan
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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    I was able to pressure test the main line that connects to the side of the valve block next to SV4. After running the engine and lowering the safety lever in the cab there was no pressure at any point. I think we're getting closer for sure. Is there any check valves or pressure safety cut off...
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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    I wasn't able to measure the resistance I need to get my meter however I did gently bottom out the screw and still no change. Not even a slight movement unfortunately. Thank You, Bryan
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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    Thanks I just checked it with the machine running. B-1 0.4v B-2 0.4v On screen 9 Comp 350ma MEAS 356ma On screen 25 Boom doesn't move as no hydraulics work. Volts nor pressure change when i moved the controls. Thank you for your help! Bryan
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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    I checked the SV4 and it has 24 volt power with key on and safety lever down. All fuses show good and 24v power. No codes on screen or alarms. Any other ideas? Thanks, Bryan
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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    Awesome thanks for the info I will check tomorrow!
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    2007 Kobelco Sk135 Pilot pump works but nothing moves

    I bought the machine as is and runs well but nothing moves or operates. Checked pilot pump and is set to 750 psi as per manual also checked main pump solenoid and replaced with new ones. No codes on screen all fuses good fluid full. Nothing moves or even tries. Took main pump to off had...
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