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excavator

  1. M

    Yanmar VIO 55 engine staling when working with arm cylinder

    Hi everyone, I have problem with Yanmar VIO55 engine is staling when I extend or retract arm, all another functions works good ? Any help will be good. Thanks
    • Milos 123
    • Thread
    • excavator hydralic vio 55 yanmar b 50 yanmar vio 35-5 yanmar vio30-1 yanmar vio55-5b
    • Replies: 0
    • Forum: Excavators
  2. R

    Case CX235C Final drive

    Morning, Doing a floating seal replacement on a Case CX235C. I am down to splitting the final, i have removed the 8 T90 torx bolts which i assumed held the two halves together. There is no outer retaining nut like i am familiar with. How do you split the hub from the motor side on this? I...
  3. G

    Cat 235 hydraulic issues

    Thank you for letting me join, I have a cat 235 excavator I’m not sure of the exact year 64R00978 is the serial #, I recently acquired it from another mine who used it with slow hydraulics for years and they are SLOW unless the machine is ran at 100% throttle then it is still slow but it moves...
    • Gman9700
    • Thread
    • cat cat 235b excavator hydraulic slow controls
    • Replies: 16
    • Forum: Excavators
  4. P

    Komatsu PC30UU3 - slow and overheating hydraulics

    Hi all, I’ve got a Komatsu PC30UU-3 Serial No. 13417 mini excavator that has slow and overheating hydraulics. Works fine when it’s cold, but once it’s worked for a couple of hours, will struggle to lift the boom (very slow) and sluggish controls all round. Machine starts up fine and has plenty...
    • Pralhad Birdi
    • Thread
    • excavator komatsu mini excavator overheating slow hydraulics
    • Replies: 1
    • Forum: Excavators
  5. Mzdiesel

    Linkbelt 250x4

    Can anybody help me out with a Linkbelt 250x4 schematic? I just need to know wiring for fuel transfer/ priming pump. I’m only getting .2v with key on and pump is burned up. I have previously traced wires but this machine is in the way of the pipe crew and I need to repair it fast. I’f you can...
  6. Mzdiesel

    Komatsu 300lc-7 multi-function slow

    Hey all, I’m looking at a komatsu 300 LC -7, I believe. Serial #A90215. I believe I am dealing with a lot of leakage/ priority issue. The main complaint is that you cannot perform two functions at the same time. If you raise boom and bucket the boom will pretty much stop same for bucket and...
    • Mzdiesel
    • Thread
    • cat dozer excavator help hydraulic komatsu
    • Replies: 6
    • Forum: Excavators
  7. P

    New Holland E265 / E305 mechatro controller programming

    I'm trying to repair a New Holland E265 excavator with mechatro controller problems and I am really stuck right now. The original controller of the machine I am trying to repair has flash memory corruption and I am not able to procure the correct flash file. I have successfully reflashed the...
    • p1gl3t
    • Thread
    • controller e265 e305 excavator flash kobelco mechatro new holland programming type b
    • Replies: 0
    • Forum: Excavators
  8. P

    317B excavator stick ram opening up and won’t hold

    Hi all, I’ve got a 317B that we recently replaced cylinder seals on. Before replacement, machine was okay and didn’t have any hydraulic issues apart from external leakages (which necessitated the seal replacements.) All other cylinders were fine after the replacement, but the stick cylinder...
  9. K

    aftermarket excavator pumps good/bad

    does anyone have experience installing aftermarket hydraulic pumps in large excavators? wondering if they would be ok for a low use farm machine or should a guy spend the extra money and get and OEM pump, they look to be about a third the price
    • KTH
    • Thread
    • case deere excavator hitachi hyraulic pump linkbelt
    • Replies: 0
    • Forum: Excavators
  10. K

    link belt 330lx main hydraulic pump

    Hi all i am new to the forum but a long time viewer. I am looking at purchasing a link belt 330lx that has a bad main pump. I have installed OEM reman pumps in the past but was wondering if anyone has experience with new aftermarket pumps from websites like fab heavy parts? OEM reman is $18,000...
    • KTH
    • Thread
    • excavator hydraulic pump link-belt
    • Replies: 0
    • Forum: Excavators
  11. J

    Cat 311B Tracks Won’t Turn when Warm

    I have a 311B Excavator when cold will allows me to turn the tracks but as it gets progressively warmer I lose the ability to turn and only allows me to travel forward and backward. Changed the filters and the oil. Anyone have experience with this type of issue? Would like a direction prior to...
  12. C

    Kubota Kx057-5 vs. Deere 60P

    It is finally time to purchase an excavator. I am looking at the Kubota Kx057-5 and the Deere 60P. It will be used primarily for forestry, land clearing, moving dirt, boulders etc…. I have checked out both machines and I am having trouble making a decision. Does anyone have experience with both...
    • CrisSilva
    • Thread
    • 60p deere excavator kubota kx057-5 mini excavator
    • Replies: 1
    • Forum: Excavators
  13. B

    Cat 305 tracking issue

    I have been having the issue that is very intermittent of when tracking around the machine bogs down to basically a low idle and slows down to a crawl. It’s only when I’m tracking so I was curious if it sounds like a pilot valve? Serial number: H5M02082
  14. N

    John Deere 120c Rough idle when it warms up

    John deere 120C SN FF120CX035538 My John Deere 120C Idles rough when it gets to normal operating temp but runs smooth on start and then slowly gets worse as it comes up to temp. it chugs like its missing or sucking air. I have replaced all the injectors and the fuel lines going to them as well...
    • natew
    • Thread
    • 120c excavator idle john deere timing hydraulics fuel rough idle
    • Replies: 8
    • Forum: Excavators
  15. B

    Bobcat X231 lost multiple functions I am at a loss

    Bobcat x231 excavator. Left track, boom and arm functions stopped working completely suddenly at the same time. Right track, bucket, swing, blade, aux, all still working fine. Hydraulic fluid and filter is clean. Hydraulic pilot system, no electronics. Would appreciate any input where to start...
    • Branstor
    • Thread
    • bobcat bobcat x225 bobcat x331 excavator hydraulic x231
    • Replies: 41
    • Forum: Excavators
  16. 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!
  17. V

    swapping a c7 engine

    I'm writing to the forum because I'm having a persistent issue with a C7 engine in my Caterpillar 329DL excavator. The camshaft bearings have spun twice in the last two years, and I'm tired of constantly repairing the engine. My options for a replacement engine are limited in my country, so I'm...
    • VeneTuy
    • Thread
    • 3116 3126b 329dl cat cat c7 excavator
    • Replies: 7
    • Forum: Excavators
  18. W

    cat series D or F. Who better

    I want to know cat series D or F. Who better
  19. J

    Hydraulic thumb wiring

    Hey, yall. Im new here, but have used this forum before to help figure some things out. However, my current problem is one i havent really seen to much info on. I am working on a 2006 komatsu pc 120-6. SN# 47813. The hydraulic thumb is not working currently. Apparently, its been worked on a...
  20. P

    Cat 330BL - Won’t rev up to take load

    Hi all, I’ve just bought a Cat 330BL 6DR00608 excavator. It’s a generally clean machine, engine sounds good, 8000 hours on the clock. Hydraulics seem okay, the machine is able to lift itself off the ground at idle speed, and tracks independently without bogging down. The wiring seems to have...
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