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help

  1. D

    ex120-3 hot hydraulic oil

    HELP ex 120-3 oil cooler and water radiator cleaned and in fair good shape, constant stong hiss (like oil passing) from valve chest. Pilot pump has a stong hard pulse every few seconds, machine goin well but a bit jumpy. no heat problems when idleing, hyd oil very hot after 20 minutes work can...
    • danny d
    • Thread
    • ex 120-3 help hitachi 120-3 hot hydraulic oil
    • Replies: 18
    • Forum: Excavators
  2. B

    Hitachi UH181 1986 help

    Hi, new user of the site. I have a little collection of older machines growing on my property. The heaviest of which being a 1986 Hitachi UH181. Since moving it up the very steep grade while dragging a 20,000lb rubber track carrier behind it 2 years ago; it has sat under a pole barn. Started it...
    • BCOG
    • Thread
    • 400 excavator help hitachi uh181
    • Replies: 25
    • Forum: Excavators
  3. J

    Broke down 315 in the middle of the road... HELP

    I currently am on a job with a brand new CAT 315 Hoe and it shut down in the middle of the street... I'm not getting any codes on my screen just shut down. I got it started for a few seconds as soon as I touched my controls it died and won't fire... We will our equipment from the same fuel tank...
  4. erick93

    Spool For a PC400-7

    Hello my fellow enthusiast I’ve got an issue for a Komatsu PC400-7 excavator Serial No. 50478. We have a Valve ass’y with the part number 723-40-71201 that has a damaged spool. I’ve attached the diagram of the mentioned valve (item 1) and spool (item 2). The thing is that it’s impossible to...
    • erick93
    • Thread
    • help komastsu pc400 spare parts online spool spool valve used parts valve assembly
    • Replies: 1
    • Forum: Excavators
  5. R

    1973 Case 450 Roosa master pump

    Pump is the Roosa master dbgfcc 431-46AJ / A-51425... was working. So poor boy attempting a re seal, pilot tube, ect ... long story short cam screw got me.. I read a post of cutting the pump body so after all else... tapping, drilling ect ... I did just that with air cut off and chisel... so now...
  6. G

    Cat 226b2 Skidsteer Left Joystick problem

    Hey, I'm new to the forum, and I'm in the market to buy a skidsteer. I'm in contact with a guy a few hours away who has a 2011 226B2 with 2700hrs. Says everything on the machine operates like it should, they replaced the fuel pump and injectors 2 years ago. Sounds like everything drives...
    • GarrettJ
    • Thread
    • buying cat caterpillar fix help hydraulics issue joystick problem
    • Replies: 2
    • Forum: Wheel Loaders
  7. K

    Careers as a Heavy Duty Mechanic

    Good evening, I'm looking to attend school this year for starting a career in Heavy Duty Mechanics, I wanted to ask folks that do this for a living before spending all this money and time. I'm also starting this venture in my 30's and want to make sure I have options as a heavy duty mechanic...
    • Kg14
    • Thread
    • heavy duty mechanic help questions school
    • Replies: 139
    • Forum: Shop Talk
  8. That Apple Guy

    Komatsu D39E-1 Powershift: Slow/weak 3rd

    Hello! My Dad and I recently purchased a 1999 Komatsu D39E-1 to use on the farm. 2 y/o UC and pretty good shape for it’s age. The only discernible issue is the Powershift 3rd gear. It pushes strong in 1 and 2 with no issue, but traveling in 3rd is slow/weak. My question is what might cause...
    • That Apple Guy
    • Thread
    • d39 d39e-1 dozer help komatsu powershift question transmission
    • Replies: 4
    • Forum: Dozers
  9. T

    No Experience - Need advice (excavation)

    I live in Tennessee, near Nashville, and I just quit my job in construction staffing. I have zero experience in excavation, but I believe it's something I would really enjoy doing after walking job sites every day. I like working for myself, and no matter what my end goal is to start my own...
  10. P

    Komatsu pc45 starts, won't operate, and wire smoking

    So i guess today our excavator took a big S***...gotta go tear up some concrete for a pour tomorrow. Heres the issue, excavator starts up and will stay running but will not operate at all...its so frustrating. Did a job last week and blew a hose from back to front so we replaced it, then...
    • PmdwTree
    • Thread
    • excavotor help komatsu pc45 wire smokes
    • Replies: 1
    • Forum: Excavators
  11. B

    TD15C have an Idler Wear Plate?

    I have an early TD15C that I use around the farm. The track chains have started to wear through so I decided to rebuild the undercarriage. I got chains, sprockets, and track adjuster seal kits. While pulling the Idler assemblies I wanted to fix some play in the idler assembly. I was thinking of...
    • Brandonfarm
    • Thread
    • dresser help help mechanical international td15c
    • Replies: 8
    • Forum: Dozers
  12. S

    Help with 1988 JCB1400B

    Hi, I'd really appreciate any input on this issue. I just bought this loader and got to use it for 30 minutes and now there is a red light on and it will not drive at all. Can anyone give me an idea on this? I have had 2 mechanics come out and but no luck. it's too old for them. What does this...
  13. GregoryJohnston77

    Case 580D water in oil new head gasket

    Hey guys, so I dropped a valve few months ago, i repaired that got it all back together. Runs great then I noticed latley i been leaking water in my oil. I pulled the valve cover, did a pressure test to check the freeze plugs, they're fine. I pulled the injectors and they looked okay one kinda...
  14. H

    420D quick coupler not working

    I am working on a 420D sn# cat0420DPBLN11615. The switch was broken on the dash, I replaced the switch and still had nothing. Traced wires up loader frame and found two broken wires fixed them. I now have power to the front but no fluid flow. I have tried to trace the wires from the switch...
  15. F

    Not sure where to start

    Hey y’all, this is my first machine and I thought I was getting a pretty good deal. Now I’m nervous something maybe real bad, hope I’m wrong. It’s a 2014 John Deere 318D, 910 hrs. Had good service history (united Rentals), but I noticed after my first job with it today that the front left wheel...
  16. K

    parking brake

    Good evening all. New member from Ontario Canada here. I am a Kubota tech branching out to other models. I'm looking for assistance with a John Deere 310SL ser#242937, unit has 4100hrs on it. The parking brake began kicking itself on a few weeks ago, never stopping the machine completely, just...
  17. A

    Massey Ferguson 1980s MF80 Hydraulic issue

    Hi i am working on a 1980s Massey Ferguson MF80 Backhoe and the Backhoe will not lift up and pushes hydraulic fluid out of the top seal (Images attached). I also can not find parts or any manuals on this Backhoe any help would be greatly appreciated. Was also told it could be o'rings needing...
  18. K

    old massey ferguson

    I bought an old massey ferguson backhoe I had a lot of work done on it by a local dealer and got took hard. Now I am going to do all the work myself but I need to know a little about this thing. Can anyone work with me to find out the year and model?? Here is what I know. It has a M.F. 50...
  19. D

    New to Heavy Machinery

    Hello, I wanted to ask some questions about working with bigger machinery but dont have anyone in my social circle who does this. If someone on here would be able to give me some guidance I'd really appreciate that. For a bit of background I worked last summer in SW Ontario, Canada building...
  20. L

    Replacement tilt cylinder for Bobcat 763 C-series

    Hey all, looking to buy a late Xmas present for my father but I'm unsure on whether the part will fit. Want to be absolutely sure because it's important we have one soon and can't wait on having to send it back...
    • LukeGreen
    • Thread
    • 763 bobcat c-series help new rookie tilt cylinder
    • Replies: 0
    • Forum: Skid Steers
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