Rc4wd 870k wheel loader unboxing and review.
 

https://youtu.be/EBi2B8o7gTs
All the previous unboxing videos I've seen on youtube came with a nice wooden box. Wanted to show how the recently shipped boxes come now. Also notice the front bucket ram PIN is installed where as before you would need to put that on yourself.
Now the new foam box is very well packed as you can see in the video.
My initial reaction was, wow this is heavy, especially the rear end. That's probably why it has so much lifting power.
There is no sound module card (that's expected from rc4wd) but there is a speaker installed already with wires coming out from it.  So installing a card should be a piece of cake.

It looks very well built.  They revised the colors. The rear radiator grill and engine handle bars are now Gray instead of yellow. I think that really changed the way the machine looks.

I already filled it up with oil and started her up. The pump noise is much louder than my pc700 and cat740. The valve control is not that precise compared to my pc700 equipped with Premacon valves.

It's hard to describe but when you move the stick very slightly, the rams don't move and I can hear the pump noise struggling so slightly. If you move the stick a little more, the cylinders start to move but not at the expected slow speed you want. This is the same for all 3 valves. Full disclosure, I am running mobil dte24 (ISO 32) and when I asked around including Mr Tang from eagle, he said it will be ok as long as it's not too cold outside. I live in Los Angeles so I think I should be fine with that. Here is a video of the valve control. https://youtu.be/eyyLs9oaXl8
(Update to the above issue, I unscrewed the pressure relief valve maybe half a turn and that solved the issue above)

Now comparing to my pc700 or cat740, the stick movements reflect 100% on the cylinders movement as one would expect.
This review was based on 10minutes of run time. So I will edit as more running time goes on.

Re: Rc4wd 870k wheel loader unboxing and review.
 

I like the grill painted gray, now you need to get some puppet drivers for your machines. When you find some let me know cause I could use a few.

Re: Rc4wd 870k wheel loader unboxing and review.
 

Check out the Walking dead figures. They make great drivers :cool:

Re: Rc4wd 870k wheel loader unboxing and review.
 

I saw one yesterday but didn't think Michonne would look right operating a D10 :D

Re: Rc4wd 870k wheel loader unboxing and review.
 

Lol these are the two I picked up
http://i66.tinypic.com/20fp7av.jpg

Re: Rc4wd 870k wheel loader unboxing and review.
 

Is that the seat from rc4wd excavator ?

Re: Rc4wd 870k wheel loader unboxing and review.
 

No this isn’t the 360L interior. I bought this interior from TTM for my 4200XL since it doesn’t come with one.

https://www.ttm-shop.de/ttm-produkte...uer-ttm-bagger

Re: Rc4wd 870k wheel loader unboxing and review.
 

That looks good!!

Re: Rc4wd 870k wheel loader unboxing and review.
 

Thanks bud here it is installed
http://i67.tinypic.com/4vh89l.jpg

But anyhow I’m done highjacking your thread, I left you a comment about the radio tuning on your video :cool:

Re: Rc4wd 870k wheel loader unboxing and review.
 

Congrats on the loader, she looks good.

Re: Rc4wd 870k wheel loader unboxing and review.
 

Northern Farmer, that cab interior looks awesome!

Re: Rc4wd 870k wheel loader unboxing and review.
 

He looks in scale with that machine, I will try and track one down after Christmas.

Re: Rc4wd 870k wheel loader unboxing and review.
 

i got 2 drivers from rcb min i think 1/14 scale

Re: Rc4wd 870k wheel loader unboxing and review.
 

That bucket looks different than the stock bucket that came with mine. Where did you source it from?

Re: Rc4wd 870k wheel loader unboxing and review.
 

It’s the RC4WD Siberian bucket powdercoated black with custom machined steel teeth instead of the aluminum teeth that come with it. There’s also a quick coupler on there. Check out my company Tremblay Excavation for more info :cool:

http://rctruckandconstruction.com/sh...t=11012&page=3

Re: Rc4wd 870k wheel loader unboxing and review.
 

I made 2 videos today. One showing how I setup my radio and the other mimic practicing loading/dumping dirt.
One thing I don't mention in the video is I moved all the fwd/rev and steering on the right stick. The boom and bucket is on the left stick.
The room is small so the pump noise is a lot louder than what it would sound outdoors.
https://youtu.be/3iA42F_aj68
https://youtu.be/YO8kvgzzAs8

Re: Rc4wd 870k wheel loader unboxing and review.
 

Northern Farmer, TYVM for the info

Re: Rc4wd 870k wheel loader unboxing and review.
 

WOW! That thang has a LOT of reach! How tall is that paper bag?

Re: Rc4wd 870k wheel loader unboxing and review.
 

Sure doesn't take you long to operate your machines in a realistic manner. Cant wait to see it outside.

Re: Rc4wd 870k wheel loader unboxing and review.
 

Great job Shawn! Thanks for demo. I’m sure it’s going to help out a lot of owners to see how you tuned your loader :cool:

Brandon

Re: Rc4wd 870k wheel loader unboxing and review.
 

Thanks Mike. It sure wasn't like this with the default settings from factory. I was barely able to control it.
JD customs has built a good machine, but the radio settings and some of the mechanical settings like the pressure relief valve were questionable. Once these were massaged, it was much more predictable and controllable. I prefer having all the drive sticks on the right side (similar to how a plane flys) and the bucket and arm left stick.
I will add to this that the pump motor, speed control and servos work much cooler now. You can touch the pump motor with your finger for as long as you want after running it for half an hour. Now I know why they took the rear fan out. Plus it makes room for the Lipo.
Surprisingly the electronics run very efficient. Only the drive esc and motor will get warm if you use it in 2nd gear which is expected and totally normal.

Thanks Brandon. I'm pretty sure if I kept the default settings, parts would start to fail.

Re: Rc4wd 870k wheel loader unboxing and review.
 

Standard grocery bag is just over 17".
Max reach to the bucket pivot point according to rc4wd is 18"
I did some rough dimensions comparing to the dimensions of full size cat 980h (pretty much the same as liugong clg888) and the result is 870k is much closer to 1:12 scale. Not 1:14 as advertised. :cop:

Re: Rc4wd 870k wheel loader unboxing and review.
 

I’m not surprised as when you see the 870K next to other loaders that are 1/14 it’s all together a bigger machine. Gotta love that extra reach though :cool:

Re: Rc4wd 870k wheel loader unboxing and review.
 

I put her in the dirt. I get better operating on the 2nd video. Surprisingly the Lipo lasted approx 35min each and I stopped it at 11.5v Very efficient. Used 5800mah lipo.
1st time in dirt: https://youtu.be/I0XeHrY7c_s
2nd time in dirt: https://youtu.be/SaeX06onUxY

Re: Rc4wd 870k wheel loader unboxing and review.
 

Awesome videos Shawn :cool:

Re: Rc4wd 870k wheel loader unboxing and review.
 

Once again your video quality is awesome , are you going to get some decals made up for the 870K ?

Re: Rc4wd 870k wheel loader unboxing and review.
 

Thanks all.
I'm debating on what model to make it. It already has CASE colors so maybe a 1221F?
But just recently i saw someone who made a whole new engine hood and converted to CAT 980. It looked great! Here is a link to the video: https://www.youtube.com/watch?v=EVfm...2V87JesLCevhOg

Re: Rc4wd 870k wheel loader unboxing and review.
 

I agree, the guy did an awesome job converting his loader :cool:

Re: Rc4wd 870k wheel loader unboxing and review.
 

This is your opportunity to have the first Case loader out there.

Re: Rc4wd 870k wheel loader unboxing and review.
 

The 1121G with the grey wheels is a slick looking ride and different then most. Thinking I'm going to make a new engine cover. Eliminate the gray crossover under the hood, fix the air cleaner and ext to the hood and gain much more Batt space.

Re: Rc4wd 870k wheel loader unboxing and review.
 

so i went and got 4 zippy5800 mah lipo battery seems they have different type of connectors than the 870 loader is there a set of adapters from bullet con to the connecters for the zippy batteries

Re: Rc4wd 870k wheel loader unboxing and review.
 

Yes, search evilbay, they have several kinds/styles. Or you can take it to your LHS & have them solder on new ends fir you, or do them yourself

Re: Rc4wd 870k wheel loader unboxing and review.
 

Just installed Beier USM-RC-2 sound/light card. I'm using default settings with a prerecorded liebherr L586.
Haven't fine tuned it yet. I have to reverse the back up beeper noise. The software has a learning curve.
https://youtu.be/c7EtgRxznL4

Re: Rc4wd 870k wheel loader unboxing and review.
 

Can’t beat that sound unit! Has lots of potential. You must have seen these videos before

https://youtu.be/0IR4jyELMO0
https://m.youtube.com/watch?v=1OWF9nibiD0

Re: Rc4wd 870k wheel loader unboxing and review.
 

The pump is so loud on the first video. I've seen the 2nd video before. Thanks!
So after messing with mine, I finally decided on this sound. It sounds throatier in person compared to the video.
https://youtu.be/k1f48dYiKKg

Re: Rc4wd 870k wheel loader unboxing and review.
 

Adjusted the turbo noise. It was too loud before. Now it sounds better. https://youtu.be/SYTcsaYZOOQ

Re: Rc4wd 870k wheel loader unboxing and review.
 

so my 870 loader is a 50 lbs piece of crap rc4wd is crap

Re: Rc4wd 870k wheel loader unboxing and review.
 

Details please, & thanks.

Re: Rc4wd 870k wheel loader unboxing and review.
 

problem is i do not think i can take that much of the machine apart and get it back together again lol i am sure it is the wire from hydro pump it is only thing not turning on and mortor for wheels do not move

Re: Rc4wd 870k wheel loader unboxing and review.
 

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