Blueacre
Well-Known Member
I just bought a Case 580 Super M that has a Buffalo Installation Corporation (BIC) Model K5500 Auxiliary Hydraulic valve and boom hose connections. Their website is http://burlingtoninstallation.com/auxkit55002.htm
There is an electrical toggle switch mounted on the one backhoe boom control lever that controls the valve when the system master switch is on. Seems to work OK, the hoses to the boom flex with the pressure increase when when the switch is activated.
My problem is with the control knob mounted on the hydraulic line guard on the right side over the batter compartment. See picture from BIC website attached. It says it is to adjust the gallons per minute (gpm). It has a cable like a speedometer or emergency brake cable - rubber covered steel outer - the cable runs from the back of the knob to the valve assembly. I think as the knob is turned it must turn a metering valve inside the hydraulic valve to control flow. The knob will not turn - I expect the cable is rusted and has seized inside the outer cover.
Just wondering if anyone has ever worked on one of these and how it comes apart so I can free up or replace the cable. Where the cable ends at the hydraulic valve there is a small hex nut about 9/16 across flats that screws into a cylindrical adapter that appears to be held on the the valve by a large hex nut - about !-1/4 inch across - if I can unscrew that nut will I be able to pull the cable out of the valve so I can work on freeing it up ?
There is an electrical toggle switch mounted on the one backhoe boom control lever that controls the valve when the system master switch is on. Seems to work OK, the hoses to the boom flex with the pressure increase when when the switch is activated.
My problem is with the control knob mounted on the hydraulic line guard on the right side over the batter compartment. See picture from BIC website attached. It says it is to adjust the gallons per minute (gpm). It has a cable like a speedometer or emergency brake cable - rubber covered steel outer - the cable runs from the back of the knob to the valve assembly. I think as the knob is turned it must turn a metering valve inside the hydraulic valve to control flow. The knob will not turn - I expect the cable is rusted and has seized inside the outer cover.
Just wondering if anyone has ever worked on one of these and how it comes apart so I can free up or replace the cable. Where the cable ends at the hydraulic valve there is a small hex nut about 9/16 across flats that screws into a cylindrical adapter that appears to be held on the the valve by a large hex nut - about !-1/4 inch across - if I can unscrew that nut will I be able to pull the cable out of the valve so I can work on freeing it up ?