My kx121-3 has a hydraulic issue. The dozer blade drifts down all the time and that makes it almost unusable for grading. I bought new check valves for the dozer section of the control valve but haven't installed them yet. Also, When I move the left travel lever forward, the dozer blade raises up. I'm thinking that the rotator joint seals are bad. Anyone have any advice or recommendations?
Kx121 excavator
- Thread starter Firstorange
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North Idaho Wolfman
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Do you have the WSM for it?
If not I would suggest that's where you start, as there is a lot of troubleshooting information in it.
Yes I have the WSM So are you saying that the rotator joint would be the place to start? Is rebuilding the rotator joint something that a nonmechanic can do.? I have a concrete floored pole shed along with metric tools and airwreches.
Have you removed the floor board panels and checked for dirt? over time, they fill up with impacted dirt. I have seen this situation cause some really funky hydraulic problems. Open it up, pressure wash out all the mud and lubricate all the connections. This is a long shot but it has solved several problems for me in the past.
When I bought the machine in Feb, I cleaned everything out well and it is still clean but the problems are ongoing.
If you are truly a "non mechanic", you might be best advised to take this problem to your dealer or a local mechanic.