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John Deere 330 Excavator Bucket and Tram Problems

jlittle2212 ยท 2015-04-13 21:24

I am having problems with the RIGHT track tramming very slow. In turn, when you curl the bucket in at stahl, the bucket pulses really really hard. We have checked pump pressures, the pump for the bucket curl, keeps a pretty steady 5000 psi. The other pump goes up and down from 2*** to 5***. Can anyone help me. Is there some reliefs or screens that may need to be cleaned? The dealer says if we replace the pump, it will take care of the problems we are having. What doesn't make sense, is the pump the curl is on, is giving a good solid psi reading.

Replies5
  1. #1ANDREW C2015-04-15 09:14

    Which pump pulses? The front one?

  2. #2jlittle22122015-04-15 19:42

    Rear andrew

  3. #3jlittle22122015-04-16 17:45

    Cleaned out some reliefs out today on the control valve. Seems to have pieces of rubber in two of the reliefs in the right valve when looking from the boom. The rear pump is knocking pretty good put holds good PSI. The front pump is the one that is going up and down on PSI. No knocking.

  4. #4rmllarue912015-04-16 19:20

    Break down on line is calling out a strainer possibly suction witch can cause noise and pressure surge good luck

  5. #5jlittle22122015-04-16 22:05

    Sounds right. Is there any orphases or screens on the tram side? I feel like I have two different problems here. If you tram it in reverse, you can't hardly tell a difference. The biggest difference is the right track in forward tram. You can almost turn a circle its so bad.