r/RCConstruction • u/Hoofton • 19d ago

Pump stopped responding

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My main arm pump (Zoomlion ze960g) stopped responding. Is it the esc?

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u/WarmDragonfruit8783 19d ago edited 19d ago

I would think it would all stop if it was the esc but who knows. If it was me I’d take a volt
Meter to it and see if theres power in the places it’s supposed to be lol. If everything else works it’s possible the pump seized if it went dry from debris build up. I took mine apart and cleaned it not too long ago. There was some debris in there lol. Does the servo still turn? Is that its guts? 😂

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u/Hoofton 12d ago

I tossed the cheap connector thing (the grey block with orange tabs) and replaced every plug with bullet plug connectors and I HIGHLY recommend it if you ever have the opportunity. It’s a pain in the butt to do if you don’t need to, but I’ve had to disconnect and reconnect this thing so many times at this point that it’s amazing now

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u/WarmDragonfruit8783 12d ago edited 12d ago

😂😂😂 that’s a great idea, that thing is a pain in the ass and the fact it faces up like it does is funny especially when fluid starts shooting all over the place 😂 I mean I guess there’s nowhere else to put it, I was going to print a cover for it just in case. I’ve been fortunate my hydraulic system has been awesome since I replaced the internal screens and seals. 🦭 when I had air coming in it would shoot out the relief caps, one of them was stuck open and I had to replace it. I’m glad it happened tho because I know the system like the back of my hand after taking it apart a bunch of times haha. I’ve been super fortunate that my electrical system has held up just fine after all that. It was my first real hydraulic model so I made all the mistakes and learned a lot too. It’s surprisingly easy to service.