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  1. C

    Safety lever not working / overridden?

    Machine is in Europe, and it says 9021 on the stickers on the side of the machine. Serial DCH2100316. So some wires have been tampered to make it functional without the safety lever. Where would be the most probable place to look for additional wiring? Sincerely, Samuel
  2. C

    Safety lever not working / overridden?

    I have a Case 9021 (1999) (Sumitomo made, US equivalent Link-Belt) which I bought with many faults in it. I ordered a new controller for it and got it working. (Still have some programming to do) The previous owner worked with the machine by manually pulling the throttle lever in the engine bay...
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    Controller schematics

    Took a leap of faith and ordered a controller from Alibaba. I also found those specific three-wire connectors from Aliexpress, so ordered them, too. I'll report how things will go after install. Any hints what I should expect after plugging in? Those colored leds still needs an explanation -...
  4. C

    Controller schematics

    Actually you must mean the backup throttle switch because today I tinkered things a bit and removed the seat for a better troubleshooting enviroment. And as it happened the both leds are lit inside the controller, but still no functions available. So the controller is the most probably cause...
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    John Deere 2154D (hitachi -3 zx250 size with Deere engine) stalling engine when operating hydraulics at low rpm.

    Common multimeters only measure average voltage so when the voltage stays constant it implies that there are no pulses present or they are at fixed level. So it will give a ballpark, but oscilloscope should be used to be sure just as mg2361 said.
  6. C

    Controller schematics

    Thanks, interesting information, but I fail to find the location for such an item. There is a sensor connector with a broken wire in the bottom of a boom cylinder that I was going to fix after I get the controller running. But schematics would really help me to understand how this all works...
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    JCB JS130 CAPS function for throttle reset - won't complete cycle

    Sorry can't help with your problem, since my controller isn't working at all at the time, but do you have backup throttle control switches (buttons) under the panel on your right side?
  8. C

    Case CX330 - No Start

    These are very rugged machines and only control to the engine is the throttle motor that turns the lever on the diesel pump. At least in older machines that I have recently familiarized myself with, so there might be more electronics involved in newer ones. In overall, Diesel engine will run if...
  9. C

    Controller schematics

    Hi, I have become an owner of Case 9021 excavator. The manufacturing year is just before millenium in 1999. It has symptoms of a broken controller - no automatic engine control and no leds visible inside the controller case. Similar (exactly the same?) excavators are Sumitomo SH200 (1-2) and...
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