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Recent content by treecutter

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    1996 case 9030b excavator with a ultimate 5600 processor head

    I disconnected the wire going to the prv and it made no differance to how machine works it will stall the motor when i pull any function.it acts like the pumps are in full mode and wont destroke .it hard to figure out if it's the pumps or the motor or the electric that is the problem .i took the...
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    1996 case 9030b excavator with a ultimate 5600 processor head

    does the rpm sender located in bell housing send a signal to the proportiopnal pressure reduction valve telling it to destroke pump
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    1996 case 9030b excavator with a ultimate 5600 processor head

    I have a problem with the motor stalling when i use any hydraulics. I thought it was the motor needing fuel and replaced the filters and the lift pump and the injectors and injector pump from a motor that was working ok. i cleaned the banjo bolts and it seams the hyd pump is not destroking.I...
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    proportional valve

    I would like to know if a electromagnetic proportional pressure reduction valve on a kawasaki k3v1120t hyd pump would cause the pump to overlload stalling engine on a 9030b case excavator and how do you check it.treecutter
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    case 9030b hyd pump loads up

    I took the pump apart and found the swash plate cradle is scored as is the part that sits in it on one side. I wonder if i could sand the scratches out and it would work . treecutter
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    case 9030b hyd pump loads up

    update I got new gauges and hookup to test .I checked pressure on the nc and have at full throttle 430 psi. when i pull a function the nc goes to 0 psi. pump pressure on front pump dosen't go full pressure but on the back pump the nc is the same 430 psi and goes to 0 when i pull a function but...
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    case 9030b hyd pump loads up

    the problem is i had the hyd tank drained and one regulator off. i would have had to put the regulator back on and filled with fluid in order to check the pressures. i had a mechanic check the pressure on pump #2 about a month ago and he said it was ok but he only checked one regulator. I want...
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    case 9030b hyd pump loads up

    I took the regulator from the front pump and put it on the back pump and the back regulator on the front pump.it still works the same, the left track works ok but the right track still stalls the motor.so now i think the regulator is ok but i will check the negative control port and see what the...
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    case 9030b hyd pump loads up

    thanks for the information. I will do the pressure checks. I havent taken all of the regulator apart.I have removed the plates and spring and the spools all look smooth and i can move them with my finger and they slide very smooth.I was thinking of changing the regulator from pump #1 with pump...
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    case 9030b hyd pump loads up

    My pump is a kawasaki. i will send a picture of my pump with regulator off.I can move the arm that moves the swash plate but not by hand.should i be able to move it with hand pressure?if i use a wrench i can move it .treecutter
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    case 9030b hyd pump loads up

    I checked fuel pressure .it has 7 pounds going to pump. it has a bosch ve injector pump.
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    case 9030b hyd pump loads up

    if when i back out the adjusting screw a half turn and it makes no difference does that mean the regulator is good or bad?. The regulator has two hoses attached to it ,does oil pressure on the negative hose cause the pump to be in low output or full load.you had mentioned an o ring on the...
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    case 9030b hyd pump loads up

    I backed the adjusting screw out a good half a turn on pump #2 and it made no difference in the way it worked.I backed the adjusting screw out a half of a turn on pump #1 and it lost power but on #2 pump it makes no change.could it be something other than the regulator block causing the problem...
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    case 9030b hyd pump loads up

    I have a problem with pump #2 loading up when i try to do a function that runs off #2 pump. i took the regulator that moves the pump swash plate off and the spools are free to move.the negative pressure is within limits. i have taken the regulator block off and took end plates off .i was...
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    low power on 9030b case excavator

    well i'm back. i bought a motor from a case 9030 that the timing pin had went in the gears. i put the injector pump on my machine. it started and ran ok but when using the hydraulics it would bog down. i replaced the two rear injectors and the lift pump. i had checked the old lift pump and it...
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