technical question for RC gurus

[Supermario]

I just wanted to comment on a very common misconception about the 4th valve operation on a 4200XL.
The valve is controlled and adjusted with the dial just above the left stick. Once you set it, that's it. The valve does not move while running stick boom and bucket. There is no mix on this set up.
Knowing that, I have no idea why the sound is changing considering that ch is constant voltage?
Sorry I can't be more help.

Excavators don't really rev up and down at all. Just lug a little when working hard. Maybe use a toggle switch function to rev up and idle down when not digging?

Oh, PS. I'm a RC guru wanna be


Mario

[Supermario]

Originally Posted by Supermario

Oh, PS. I'm a RC guru wanna be


Mario

Well, atleast that part of my post was correct.

I want to apologize for giving bad info about the 4200 operation. I'd rather have no info instead of bad info in my trade.
Thanks Travis for catching it and didn't mean to steer you the wrong way Andy. The 4th valve DOES indeed move during functions.
No more answering guru questions for me till someone actually calls me one

Did your package arrive Andy? The reversing lead work out ok?

[fhhhstix]

Originally Posted by Supermario

Well, atleast that part of my post was correct.

I want to apologize for giving bad info about the 4200 operation. I'd rather have no info instead of bad info in my trade.
Thanks Travis for catching it and didn't mean to steer you the wrong way Andy. The 4th valve DOES indeed move during functions.
No more answering guru questions for me till someone actually calls me one

Did your package arrive Andy? The reversing lead work out ok?

No need to apologize you were right on the purpose of the valve and just a little fuzzy on how it actually functioned. This was their cure to the pump having to start under a load. Where as other models with this size of pump use a gear reduction of some sort to start the pump more easily. I plan to put a 4:1 gear reduction motor on mine and go back to a 12V battery. As it sets though I have plenty of power and speed with the stock setup on 7.2V battery packs.