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cat 303.5

  1. K

    Help Diagnosing Cat 303.5 Noise

    Hi Everyone. Would love for you to take a crack at diagnosing this noise for me? It's a whistle or whine and it happens near the end of the video. It happens when I start the machine and it'll happen intermittently as I operate. I assume it's hydraulic related. Thanks in advance for the help!
  2. K

    Cat 303.5 leak from Hydraulic fluid filter cover

    Hydo flows out when it’s pressurized after I removed the cover and reinstalled. I took it off again, cleaned up the o-ring and mating surfaces, and reinstalled. Still leaking. Hoping this is just an o-ring issue? It seemed like it may be a little loose, not a snug fit into the groove it’s...
  3. K

    HELP Missing CAT Serial number to replace radiator

    Hi all, I think I might be in trouble on finding a radiator for my cat mini ex. Had it for about 2 years and the guy I bought it from thinks it’s 303.5 but there is ZERO indentification on it. All I have is measurements and the fact that it’s got a Mitsubishi engine. there’s no return policy so...
  4. JONATHAN MASON

    finding the right parts manual

    i have a cat 303.5 afw00873 it has a 3013 engine 9tj0 the parts manual they gave me sebp3061-37 this is not the right manual i can see differences ie rocker box is different the manual says AFW1-up but my number is AFW0 i hope some one can help me
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