D85a-12 steering pump seal blowing

dimanche 13 juillet 2014

Hey gents

I'm stumped. Our d85a-12 komatsu is having a session. I changed out the steering and torque converter pumps and immediately blew the seal out the front of the steering pump. This floods the converter and is no good. However I have no idea why this is going on, the relief is relieving, the filter is good, it should bypass anyhow, the lines are clear yet every time I replace the seal it does it again. Any ideas? Ever seen this before?




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