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Cat 301.8 grinding noise

wally1 ยท 2014-05-27 21:08

Hi, I recently have a problem on my cat 301.8, it's make grinding noise but only when i use the right stick and it make sound when i move the boom up but not when it goes down. On the left stick there is no problem. The problem is random it appear and disapear. Any idea? Thanks

Replies5
  1. #1Nige2014-05-27 21:11

    A pin somewhere in the linkage that needs greasing..?

  2. #2wally12014-05-27 21:16

    It does sound like this, pretty sure it's on the hydraulic system but i don't know where to start

  3. #3Nige2014-05-27 22:07

    Grease the bejasus out of evry pin on the backhoe (make sure you don't miss any) and see what happens is my suggestion. I assume you've checked the hydraulic oil level is correct..?

  4. #4wally12014-05-27 22:44

    Yes i check the oil level ans it's ok. The grind (vibration) come from near the left of the engine. Thanks for your reply

  5. #5Nige2014-05-27 22:59

    If the level is OK does the oil in the hydraulic tank look like it is foaming..?