Why is my Hitachi excavator controller not working?
Why is my Hitachi excavator controller not working?
This article aims to introduce the process of troubleshooting a Hitachi EX200-5 excavator and its controller ‘s repair. The owner said there was just something wrong with throttle cable distance in stepping motor. It cannot be accelerated if it was stalled. Then the owner got a local repairman to fix the stepping motor but it stopped working.
Why does my Hitachi ZX 1 not throttle up?
There should also be a learning switch to perform engine learning. Basically this makes the stepper motor go to its min and max positions so the controller can remember where low and high idle is. Most Hitachi’s from the ZX-1 and earlier have them.
Why did my Hitachi excavator have a short circuit?
We instructed owner to use an oscilloscope to detect and found that there was damage in triode which controls the motor. This shows that the motor circuit of the original excavator had a short circuit. After replacing the damaged parts, everything was normal in the test.
How to adjust or calibrate new Excavator Hitachi stepping?
(5) Turn the key switch to the on position and wait for 5 seconds. (6) Turn the key switch to the off position and wait for 5 seconds. (7) Turn the MC engine learning switch to the off position. At this point MC engine learning program is completed. Restart the engine afterwards, and EC stepping motor will work normally.
Is the Hitachi 120-3 excavator has hydraulic problems?
Discussion in ‘ Excavators ‘ started by tommurphy73, Dec 8, 2017 . I have a Hitachi 120-3 excavator which has hydraulic / electronic problems. The machine has very slow hydraulics including the track motors. It operates a little like the excavator in this video
There should also be a learning switch to perform engine learning. Basically this makes the stepper motor go to its min and max positions so the controller can remember where low and high idle is. Most Hitachi’s from the ZX-1 and earlier have them.
How can I Turn Up the throttle on my Hitachi ex135ur-5?
With the engine running and the 4 pin plug plugged in, get some one inside the cab to turn the revs up and down. With a test lamp, ground onto pin 3 and check pin 1 for voltage, and again ground onto pin 4 and check the voltage at pin 2.
(5) Turn the key switch to the on position and wait for 5 seconds. (6) Turn the key switch to the off position and wait for 5 seconds. (7) Turn the MC engine learning switch to the off position. At this point MC engine learning program is completed. Restart the engine afterwards, and EC stepping motor will work normally.
