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Recent content by rpacbigpipe

  1. R

    Hydraulic pressures on komatsu 390

    So 5100psi? On hammer circuit didn't think it was possible
  2. R

    80,000 lbs Zero tail swing excavator

    If you have 4 228s you won't be happy with any of the above we tried a 305 Volvo and the 328 cat no comparison to the komatsu for precision and speed. Unfortunately they stopped making the 308 but I heard that komatsu has some brand new machines in Japan that they are allowing to be ahipped to...
  3. R

    Hydraulic pressures on komatsu 390

    Can anyone tell me the max pressure you can get out of the auxiliary circuit on a new 390 or older pc 308?
  4. R

    Looking to buy a new 30 ton class excavator

    We just bought a 390 which is a 360 on a 490 under carriage 500 hrs on it great machine cycles very fast and lifts 12 ton no problem. 360 seemed a little light pulled itself all over the place lots of power. 390 just heavy enough to be stable. Long stick and coupler handles it fine over the...
  5. R

    First generation hydraulic excavators?

    No pics of BE 30H or 40H? Ours had a V 12 Detroit weighed 140,000# I can't find any old pics
  6. R

    Water and sewer loader?

    Parts are usually in stock or 24 hours away been running komatsu excavators since 1990 and can't remember a time when we needed to buy anything that failed valves pumps or engines. Rare occasions when operator broke a pipe on boom they had it in 24 hrs. Our pc 600 has quick coupler for bucket...
  7. R

    Water and sewer loader?

    GP bucket is fine 5 yds all day long problem with most people is they bleed yellow put a good operator in a Volvo or a cat for a month they'll take the Volvo all day long to me it's not about resale value but production and reliability like any other machine at 15000 hrs they should be traded...
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    Water and sewer loader?

    If you go to a 150 much bigger loader 120 90 70 all have the same coupler pretty sure ride control is standard cdc is a 6500k option but you still get a steering wheel we go with aftermarket jrb forks 6" long no problem keeping up with our pc 600 and 400 on our water crews we have a 90 or 70 but...
  9. R

    Water and sewer loader?

    Traded for 120H stay away from the g not tier 4 final Regen problems handles 24' boxes no problem also can carry 8' manholes
  10. R

    Water and sewer loader?

    We do underground utility work in New England we have 4 volvo 120s great machines cycle fast and lift tons good match with any excavator handles 84" and 72" RCP no problem just traded one in with 22000 hrs no problems
  11. R

    Volvo 120H hydraulics

    Thanks already scheduled it
  12. R

    Volvo 120H hydraulics

    Just ran our new 120H for 8 hrs bucket controls seem to have a delay electric not hydraulic how do I get the same feel as F and E models?
  13. R

    Pipe Work and Excavator Size

    komatsu 400 best machine ever built for utility work plenty of power reach and feel handles 54" rcp no problem
  14. R

    PC228 Komatsu ?

    I've put in lots of sewer and water pipe with our 228 great machine very fast for a komatsu and extremely smooth. plenty of power for its size be careful lifting because it will pick more than it can handle.
  15. R

    Bobcat 753 "gushing" hydraulic fluid beneath seat on right hand side of machine.

    most likely the main hose take the right rear tire off and there is a small access panel after you lift the cab and suck out the oil
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