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| Construction Equipment Tech Hydraulics, Electronics, General Engineering, ect in constr equip |
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#1
11-21-2015, 11:40 AM
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Re: 4200 Excavator problems
I would systematically unplug servos, turn on check, I had similar and a cooked servo was the reason. Also do track esc and pump esc. One at a time. And also make sure battery is good, but I would bet it is a bad servo giving electrical interference feedback.
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#2
11-21-2015, 04:32 PM
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Re: 4200 Excavator problems
Servo needs to be replaced! I was going crazy trying to figure it out it is just one of the servos and it will be good to go..cheap and easy replacement.
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#3
11-22-2015, 12:20 PM
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Re: 4200 Excavator problems
Thanks for the quick replies guys. I will surely check out the servos first thing. I seem to have read someone else having a servo issue and experienced similar. I will update on the cause once it is pinpointed. Hopefully it's only a servo!
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#4
11-23-2015, 12:20 AM
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Re: 4200 Excavator problems
I bet it is because mine did the same thing and a few of us had no clue until we experienced the same thing with servos. It seemed to make no sense..pump barely running..tracks moving backwards..but as soon as the servo is replaced all normal. When you replace it..make sure to center it.
Power up then with trim on radio at zero -move the control by hand so what ever function it's on-floats in neutral..or as close as you can get it then pop the servo in. It always moves a tad because of the gear but if close you can trim it manually.
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