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  1. L

    950g cat loader warning light stays on

    Update i got the light to go away. The hydraulic fan motor stopped working so the machine got hot. Once I replaced the hydraulic fan pump with the new one I also drained the hydraulic tank and added new oil. Now the hydraulic filter indicator on the monitor with the tattle tail lights doesn’t...
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    380-5 komatsu loader

    This like a 1995 model wa380-5. I tighten the bolts that were loose but still did the clank noise. The code 15SALH is for the forward clutch valve. The fill switch wire on the forward clutch valve does ground out when put in forward but cuts out for a split second then comes back on. When...
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    380-5 komatsu loader

    Anyone know how to troubleshoot the 15SALH service code. Reason is because when you put the shift lever in forward the drive shaft makes a clunk noise then goes away. It dosent do it in reverse just forward. And it dosent do it while traveling just when in forward before any take off. The noise...
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    950g cat loader warning light stays on

    The service Manuel appears to show the pressure setting of the hydraulic oil filter bypass valve to be at 25psi. So does this mean when the pressure at the pressure switch on the filter housing reaches 25psi it sets of the hydraulic filter plugged warning light? Before I think about opening the...
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    950g cat loader warning light stays on

    Removed the pressure sending unit on the hydraulic oil filter base and I am getting 20-21 psi at idle. And at high idle roughly around 24psi. I tried putting the gauge on the quick connect fitting near the pressure sending unit first to leave the sending unit connected but the pressures were not...
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    950g cat loader warning light stays on

    One more thing the filter am seeing in parts book dosent show the big holes for the screen on the hydro filter return side. But the other screen inside the tank that goes to the pump I believe does show the big screen holes. That's why I was thinking the filter screen could be kinda plugged.
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    950g cat loader warning light stays on

    1g8878 cat filter the tranny filter is the same also. Also when that pressure switch alerts the operator that the filter is plugged. Does the oil bypass in that filter head to make up for the plugged filter?
  8. L

    950g cat loader warning light stays on

    Yes but no change the breather I got was 507-0646 cat# it didn’t have the push down to relief the air. But it had the same nipple to screw down on the tank. Parts book show a screen on the inside of the tank where the return line from the filter goes through the tank. Not sure if that screen...
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    950g cat loader warning light stays on

    PIN CAT0950GHAXX01087 model 950G
  10. L

    950g cat loader warning light stays on

    Where is the warning horn located so I can unplug it and see if the light comes off and on while operating. Also that file is the same loader because the breather is on top.
  11. L

    950g cat loader warning light stays on

    I will clean out the breather and look into installing pressure gauge. Also could it be also possible that the screen inside the tank might be plugged causing this issue? I see in the parts book there is like to screens inside the tank.
  12. L

    950g cat loader warning light stays on

    I did cut open one of the filters but didn’t see anything. Took a sample anyway just to send it in.
  13. L

    950g cat loader warning light stays on

    Don’t have serial # right now but the parts book being used is for AXX1-UP will post seriel # soon. When I had the new cat filter and new filter assembly with the new pressure switch the hydraulic warning light didn’t come on right away with the pressure switch wired up. After like 3 hrs the...
  14. L

    950g cat loader warning light stays on

    Yes if I manually ground the grey wire to the frame warning light and indicator pic comes on like it's supposed to. If I remove the wire they go away all day. Once I put the wire back on the sending unit after some time the warning light comes back on. When My transmission indicator flashes i...
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    950g cat loader warning light stays on

    Using the same oil we used all the time 15-40 oil. The filter was the correct one from caterpillar. The problem just popped up recently never had the issue before. The pressure switch was replaced first then had bought the correct filter from cat but they ended up sending the whole filter...
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    950g cat loader warning light stays on

    Yes that is the correct part number but I had the whole filter assembly replaced with a new switch on it. Besides a restricted filter I don’t get what could make the switch go off. Could any restriction in the hydro tank cause this? The machine doesn’t get hot just the warning light and the...
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    950g cat loader warning light stays on

    I got that clogged hydro filter light that stays on the display. Changed the filter and the sending unit but it still comes back on? Anyone know of anything else that can set this warning light off? If I remove the wire of the sending unit on the filter housing it doesn't come on. So that tells...
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    hitachi ex300lc no elc power

    Turns out the e.c module behind seat send the signal to the e.c motor. That's why my e.c motor wouldn't work
  19. L

    hitachi ex300lc no elc power

    So what was the problem ? I have a 450 hitachi excavator not getting any power to ec motor.
  20. L

    450 excavator hitachi EC motor issues

    Have this 450 excavator that am not getting power to the ec motor that controls the fuel. The machine will start manually by moving the throttle cable but not with the ec motor. Seriel is zx450lc I would like to know where the ec motor gets power from? The fuses are all good and the led light is...
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