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  1. W

    Hitachi 120-2, not the standard problem

    When I turn the machine off the battery warning light comes on and the various other indicator lights (travel speed, mode, throttle setting) stay lit. Disconnecting the battery "resets" the system, when I reconnect the battery all the indicator lights are off. The machine restarts fine, shuts...
  2. W

    Komatsu S6D105 PC200-3 need head bolt torque pattern

    Torque numbers too. Anybody help me out?
  3. W

    Deere 550G right track lost power

    Was out doing some light pushing yesterday and the machine lost power to the right track. I could hold the left stick back and shift from forward to reverse and the right track was getting nothing. Never heard any pop, crunch, grind or bang. Backed out of the job to get to better ground and it...
  4. W

    Hitachi EX120-2 or -3?

    Need to buy a wiring harness, but need to figure out for sure which machine I have. The plate riveted low on the side of the cab is gone. An operators manual for a -3 machine came with it, machine looks like the one pictured in the manual, always assumed it was a -3, but when I had to buy a...
  5. W

    Komatsu PC200-3 changed hydraulic oil cooler

    Just put a new hydraulic oil cooler on my machine, what do I have to do about bleeding the pump? Looking at it I don't really think draining the tank would have necessarily drained the pump, but don't want to take any chances. How would you go about bleeding the system, especially the pump?
  6. W

    Hitachi 120-2 lomp mode

    There was a thread a while back about operating in limp mode. The machine in that thread was operating fairly well in limp mode, but mine is extremely slow. Does anyone know how to make limp mode more aggressive? The pin that engages the swash plate is hex shaped, will have to pull the plate to...
  7. W

    Hitachi 120 starter question

    First, a public service announcement. If you park your hoe so that it's easy to climb in and out it will make it a lot tougher to access the starter. I had to break my arm in two places to get at the lower bolt. I probably need a new starter. Looking online I can get a new Rareelectric unit...
  8. W

    A different Hitachi 120 question

    Got a 120-2 that does the same thing they all do. Intermittent so slow as to be unusable. Discovered a while back that if I jiggle the harness connector where it plugs in to the ECM it will be fine for a while. Sometimes I'd have to give an extra jiggle because the swing brake didn't release or...
  9. W

    Ratchet binder-how tight/

    Old school binders aren't supposed to be tightened with a cheater to prevent putting too much preload on chains and binders, but what's right on ratchet binders? I just pull things snug, although it's hard to resist giving the handle a few extra pulls, but I see a lot of guys putting everything...
  10. W

    Orange paint question

    Hoping to do some painting this summer and want to use a darker shade of orange. It seems that the newer Zaxis machines are less pumpkiny than the old Hitachis. Is there a difference in the color or is it just faded paint on the older machines that makes me think there may be a difference...
  11. W

    Hitachi 120-2 gremlin slain

    I was one of the many who had a machine that would work fine for a short while, then slow down to uselessness. Local mechanic assured me it was the pump. It wasn't. Replaced angle sensor, chased wires, pulled the computer and looked inside for damage. Spent many hours just staring and glaring...
  12. W

    Using conveyor belt on trailer deck

    I'm thinking of nailing or bolting two lengths of belting from a crusher on my equipment trailer to keep dozers from tearing things up. Anyone ever seen this done?
  13. W

    Air brake question

    I just went through a set of front brakes way too fast, so I'm either getting too much air to the front or the back isn't performing. The fronts are adjusted loose and aren't dragging. I notice the front wheels are almost too hot to leave a hand on, while the back wheels are barely warm. I'm...
  14. W

    Virgins?

    Not that kind. I need to put some tires on my 13 ton tilt deck, wondering what the experts think of using caps. The trailer only gets used maybe a thousand miles a year, and usually is loaded kinda light, but it gets squeezed into a lot of tight driveways, often backing in. I worry about peeling...
  15. W

    ex120+gasoline+torch=happiness

    I've been fighting my POS Hitachi for longer than I care to think about, it has the standard problem. It always starts working again if you wait long enough, but maybe not this time, so I just pulled the plunger on the bottom of the pump and rotated it so I could at least get to a better spot...
  16. W

    Cat 3406 turbo mounting

    A friend has an MBN engine that eats the studs mounting the turbo like candy. If they don't loosen up they break off, the local shops act like they've never heard of it before. It happened with the original parts, now he has a PDI manifold and a C16 turbo, it still does it. Any ideas why it...
  17. W

    equipment moving rates

    What do you guys charge to move equipment with a dump truck and trailer, and how do you count your time? I start and end the clock at my shop, and have gone from 80 to 85 to 90 an hour this year, but during the busy season (now) I lose money by taking time out to move something, and that's not...
  18. W

    EX120-true fix of urban myth?

    Like apparently most other Hitachi dash 2 or 3 owners, my machine has gremlins that cause it to randomly slow to complete uselessness, but never when the mechanic is standing there with the clock running. I've seen recommendations for a manual conversion kit, and they are listed on ebay, but...
  19. W

    old rubber tired dozer

    When I was a kid a neighbor had a small dozer on rubber. I'm guessing it was from the fifties, the hood and cab looked like somebody had taken a mid-50s pickup truck and cut it lengthways, sectioned out about three feet and welded it all back together. The engine was in the back and everything...
  20. W

    hitachi 120 hydraulic cooler

    The hydraulic cooler on my Hitachi 120-3 rusted through, and since Pape wants almost $1200.00 for a new one I'm going to graft in a universal cooler, which means soft hose and clamps. My question is, how much pressure is in the line? Doesn't look like it could be very high, but I was once wrong...
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