A friend has a problem with the hydraulics on his Kato. One track is not tracking correctly. He has noted that there seems to be a hydraulic pulsation when right pump is used. The following tests were conducted on both sides of the main hydraulic pump. Left side. Start up pressure 300psi. Dipper full up 2800psi. Dipper in full 3300psi. Track motion forward 3300 psi, 5000psi under severe climb pressure. Back 3300psi. Right side. Start up pressure 700psi. Main boom full up 4500psi. Crowd in 4700psi. Crowd out 2600psi. Track motion forward pulsating 1000 - 1500psi. Under severe climb pressure 2800psi and stalled. Back 500psi. My observations would suggest that both sides of the main pump are working at or near the design pressure under certain motions. Obviously a failure in one of the control systems or motor. Has anyone any suggestions on where to start looking.
Surprised no one has responded to Kato problem. Are these rare machines? Does anyone know of an expert on the hydraulics on a Kato who I can contact in Australia?
dont know much about kato,s but may be excavator spares in albury could put you in the right direction.regards excat
Travel Motors Direct If you have any queries whether it is a problem with your track motors or not. Try contacting Murray at Travel Motors Direct in Brisbane. We specialize in the Hydash Finaldrives on your machine and may be able to help diagnose your problem. Ph. 07 544 37013
I worked for a dealer of them years ago here in the states. We were the only dealer on the west coast then and all the parts had to come out of New Jersey. Usually a week or more wait to get any parts unless you paid air freight back then. No service manuals came with the machines and the dealer only had the electronics testing box with a simple trouble shooting procedure. Needless to say these machines didn't last long in the states for the obvious reasons. Yes they are rare in the states. I wish you well, Good Luck!
Just read your thread so I'm probably too late. If I remember correctly these machines use a A8v 56 pump????. Does the shuttering happen when you use either the slew or bucket functions one at a time or just the travel. It helps to have someone feel the hoses at the pump while you pull a lever. Regards Mike