I have a Komatsu wa400-5L. After running for 30 minutes the bucket dump slows way down, to the point where I almost have to have the throttle pinned to dump. sometimes at idle the bucket won't even move to dump. Lift and lower seem fine, curl up seems fine as well unless its a real heavy load. I have noticed that they don't seem as strong as before.
The fluid is new (blew a 1.5" line) and new filter in top of the tank. Problem started before I blew the line.
A plugged screen, valve , solenoid? I do have the service manual but looking for a starting point.
Thank for any help or input.
The fluid is new (blew a 1.5" line) and new filter in top of the tank. Problem started before I blew the line.
A plugged screen, valve , solenoid? I do have the service manual but looking for a starting point.
Thank for any help or input.
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