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Have a case 590 super m backhoe.Hose blew under the machine…

Have a case 590 super...
Have a case 590 super m backhoe.Hose blew under the machine and lost all hydraulic fluid.the front bucket and stabilizers were up when this happened.Drove machine for about 10 minutes to the barn ,had to use brakes to steer as lost the steering.Fixed the blown hose,filled system with ISO 32 hydraulic fluid.Case starts and runs fine,hydraulics ,bucket,stabilizers boom ,all extremely slow,front bucket will lift extremely slow.Any ideas on the problem???
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Answered in 3 minutes by:
9/22/2016
Mechanic: Curtis B., Technician replied 6 years ago
Curtis B.
Curtis B., Technician
Category: Construction and Road Equipment
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Experience: Technican turned service manager with multiple lines of equipment and rental units.
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Hello! Let's see if we can work together and come to a satisfactory conclusion!

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Mechanic: Curtis B., Technician replied 6 years ago

The driving it with no oil to the hydraulic pump, likley has ruined the hydraulic pump. Slow operation, will be low hydraulic flow caused by worn pump. You can put gage on the hydraulic control valve and chek pressure, but I suspect it will be much lower than the 2300 psi required. Not news you like to hear, but I think it will be pump bad, and the hydraulic filter and fluid needs to be replaced with the pump!

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Mechanic: Curtis B., Technician replied 6 years ago

Or remove the pump and disassemble it and check the gears and wear plates. If good, you are only out a seal kit.

Curtis B.
Curtis B., Technician
Category: Construction and Road Equipment
Satisfied Customers: 43,588
Experience: Technican turned service manager with multiple lines of equipment and rental units.
Verified
Curtis B. and 87 other Construction and Road Equipment Specialists are ready to help you
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Customer reply replied 6 years ago
Curtis B,will remove the Hydraulic pump,major job.It is located under the front radiator.Will get it checked out.Thanks
Mechanic: Curtis B., Technician replied 6 years ago

Much easier to get at if you raise the boom and lock it

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Curtis B.
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