Volvo EC300D

[RCP57]

Originally Posted by Lil Giants

Well Done Reg!!! An xllnt accomplished build with not much for special tools, but rather oodles of skill! You should be proud!

Now to tweak the radio to get it running at optium performance!

Recap:

What voltage are you running?

Are your valve servos opening at 100%?

What size plumbing (ID) to your cyls?

What pressure were you running at in your last vid?

What was its finally weight tally?

I use the dual rates for the stick/bucket/swing, no such option on the dx8 for the throttle (boom) unfortunately, but can adjust throttle curve. I have the boom servo valve @100% for up, but approx 60% for down so the boom doesn't drop too fast. Using Dual Rates on the other three, you can tweak the valve openings for various digging operations.. like when loading a trk & don't want too fast of movement vs everything wide open for digging & piling.

I couldn't hear any pump esc freeze in any of your two vids, but it could happen with the brushless if rpm drops too low. I assume you have the pump on Aux 1 or 3? If 3pos switch is down to turn off pump, you could set the middle position to operate @10 to 15% so the pump rpm never fully stops. Then with the Mix on, pump with go to full speed with the servo valves are activated. With Mix off, pump will turn slow for more precise movements.

Thanks very much!

So to try and answer all of your questions...

12 volts, I believe so, 5/32 OD not sure of ID, 30 bar in the GoPro vid, and 50lbs.

I have the pump running off of the gear switch and the mixing set so that the pump is off in the up position if the sticks and Aux3 are centered (Aux1-2 operate the tracks and Aux3 thumb) and wide open in the down position. I'm using a 3300kv motor and an 11:1 reduction so the pump has no problem starting and running very low rpm with little stick movement although it may be a little slow up top. I will mess with some more stuff as I get more familiar with how it operates as is. Overall I am pretty happy with how it works considering the only thing "off the shelf" is the hydraulic pump(not including the drive). I'm buying a mill next week so hopefully I can do everything myself from now on. Maybe one day I will be furtunate enough to sell some of the stuff I make but time will tell!

Thanks again!