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  1. R

    Pc50uu-1 mini excavator final drive cover plate removal

    I had a slightly weak left track from the time I bought it. There was a revolving click for about 100' then it spontaneously deconstructed itself and the left track stopped dead. Luckily I reached the flat area I was traveling to before the teeth jammed the gears. Clicking was probably a...
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    Pc50uu-1 mini excavator final drive cover plate removal

    I didn't take really good pictures of the inside but found very little particulate or damage further inside the case. The central shaft and reduction gear teeth looked perfect with very tight lockup. I figure it's worth trying to rebuild. I'll wash everything out. Use a super magnet to collect...
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    Pc50uu-1 mini excavator final drive cover plate removal

    777.parts.com, and supply.parts have a quoting service. landamachinery.com in China has parts too. I located planetary gears for around $200 for the set, I'm still looking for a reasonable price on a reduction gear. Some places are charging $500-$1000 for just the reduction gear.
  4. R

    Pc50uu-1 mini excavator final drive cover plate removal

    Can confirm: slide hammer worked great. O-ring looked extremely gross. Apparently they glued it in place? The planetary gears have a many missing teeth as a trailer park queen. Well mystery solved I'll pull the rest apart and get quotes on parts needed
  5. R

    Pc50uu-1 mini excavator final drive cover plate removal

    In trying to service my komatsu pc50uu-1 final drive. It started to feel weak on the one side and then abruptly stopped working. I sourced a complete final drive for around $2k but would like to just replace the drive shaft if that's all that's destroyed in there. The oil was very glittery...
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    KOMATSU PC50UU-1 - COVER PLATE SEAL LEAK - FINAL DRIVE

    I know I'm late to the party but landamachinery.com has a lot of hard to find pc50 parts. Did you already figure it out or just buy a new final drive? Also how do you get the cover plate off the final drive? I got the snap ring out but the plate seems corroded in place. Going to try a slide...
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    Manual for the KOMATSU PC50UU

    Thanks buddy! You guys are awesome. Now for the fun part: seeing if I'm buying a new final drive or if it's an easy fix.
  8. R

    Manual for the KOMATSU PC50UU

    Tool_king if you still provide the pc50uu1 manual to people I would greatly appreciate the help. I lost mine in a computer disaster and formated the hard drive without backing up my downloaded version of the manual. Not all heroes wear capes. Thanks for keeping so many machines running...
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    pc50uu -1 bleeding fuel system

    I bled everything except the injectors and I was sitting half way up a mountain in 95° heat. I read this and had it running a few minutes later. Thanks dude!
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