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stalls

  1. B

    Case 580SK Stalls and then won't restart without a shot of ether

    Hi All, I have an odd problem that I hope someone cane point me in the right direction. On a 1992 Case 580 SK backhoe, the machine can be working fine for a while at 2200 RPM, and then all of a sudden, RPMs drop to idle for a second and then come back up. Then a bit later, the machine will...
  2. T

    Komatsu PC78 MR6 low power and stalling

    Hey everybody, New member and first time posting here. I recently purchased a used PC78 with ~6k hours on the machine. I wasn't able to test the equipment too much at the dealership (used equipment lot), but the machine appeared to operate well. After the machine was delivered I started to...
  3. Pete w

    John Deere 490 Stall

    Good morning Ladies and Gents, I need some help with a 490 we have here. Its been sitting for a while, took it to a job to use it and it kept stalling under load and if you hold a function over relief. Doesn't matter what mode its in. Changed fuel filters. Checked air filter. Purrs like a...
    • Pete w
    • Thread
    • electical hydraulic sensor stalls
    • Replies: 25
    • Forum: Excavators
  4. R

    PRV Calibration for Cat 317N excav.

    Hi all. I have this 317N Cat excavator who's giving me a hard time on troubleshooting the hydraulic system. The problem is that on some hydraulic circuits, the hydraulic pump stalls the engine, such as the under carriage, and boom lift cylinders, while on the other circuit such as the bucket...
    • Rodgale
    • Thread
    • calibration cat excavator power prv stalls
    • Replies: 4
    • Forum: Excavators
  5. Shterion Kostov

    CAT 320C low hydraulic power, engine stalling

    Hi, Guys! I have been having a lot of trouble with a CAT 320C Excavator (S/N BDE00683) with 16 000 hours on the clock, which my boss just bought. The excavator is well serviced, engine looks and works well, but when under load, the engine revs go down very fast, it stalls and there is no...
  6. R

    2004 Genie Z45-25 man lift stalls out after start

    Looking for some assistance in diagnosing this issue. I'll be honest, not too sure where to start, but here's some background info. Has the ford LRG 425. It's EFI. Serial number z452504-23852 Problem: Starts up and runs ok first thing in AM for about a half hour. Once the engine starts warming...
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