Importing and modifying a new mini excavator from China

[jodieadair]

I added a cushion valve to my swing motor. It still needs adjusting but so far it is a vast improvement over the sudden stops.
This is shown at full throttle with full stops.

https://www.facebook.com/video.php?v=416010310948249

 

[dfkrug]

I added a cushion valve to my swing motor.

Where did you install it? Looks like you have some excess play in the house ring/pinion gears.

Can you reach the foot controls?

 

[jodieadair]

Where did you install it? Looks like you have some excess play in the house ring/pinion gears.

Can you reach the foot controls?

I installed a bracket above the hyadraulic pump, the 15 models have a lot of empty space. I have yet to see one of these machines without play in the swing gears. When it's off you can move it a few inches back and forth. And yes, I can reach the pedals. I just turned twelve.

 

[Fixastuff]

I have yet to see one of these machines without play in the swing gears. When it's off you can move it a few inches back and forth. A

Even name brand machines are like that.

 

[dfkrug]

I installed a bracket above the hyadraulic pump, the 15 models have a lot of empty space. I have yet to see one of these machines without play in the swing gears. When it's off you can move it a few inches back and forth. And yes, I can reach the pedals. I just turned twelve.

Where did you install it in the hydraulic system? Add a tee and 2 hoses for each RV? Got pix of the RV you used?

I don't have that kind of slop in the ring/pinion gears on my XN08.

 

[jodieadair]

Where did you install it in the hydraulic system? Add a tee and 2 hoses for each RV? Got pix of the RV you used?

I don't have that kind of slop in the ring/pinion gears on my XN08.

I just put it before the swivel motor, no tee needed. The old hoses in one side and 2 new hoses back out to the motor. Here is the model for the RV DCRV45-06N. And you must not have a real Chinese mini if you ain't got that slop. It may be an effect of the cushion valve, I didn't adjust it much to find the optimal setting.

 

[jaylast]

DCRV45-06N

Very cool I wouldn't have had the exp to begin to try.

It does look like it works great, but did it slow the rpm at all (of house)? From the vid I'm guessing it's about 5 or 6 rpm now and I was thinking 8 or 9 might be stock?

This swing motor came tight, but sure aint after about 27gal gas.
Including arm slop I bet it's up to 5 inches now with bucket full out.
New motor to swap in now and a cushion valve seems like a nice addition.
(gonna disassemble old motor to find the slop).

___________________
On that HT 15, was it verified if you have 1 or 2 speed pump?

 

[jodieadair]

Very cool I wouldn't have had the exp to begin to try.

It does look like it works great, but did it slow the rpm at all (of house)? From the vid I'm guessing it's about 5 or 6 rpm now and I was thinking 8 or 9 might be stock?

This swing motor came tight, but sure aint after about 27gal gas.
Including arm slop I bet it's up to 5 inches now with bucket full out.
New motor to swap in now and a cushion valve seems like a nice addition.
(gonna disassemble old motor to find the slop).

___________________
On that HT 15, was it verified if you have 1 or 2 speed pump?

The rpm can be increased with valve adjustment, I just have not adjusted it yet.

 

[MattB4]

I would not be surprised that coming EPA rules will make these little excavators unavailable for import in the near future. They stopped imports in the past until they shoe horned in the B&S gas (Already iffy in CA who wants to eliminate all small gas engines) and now the small Kubota diesels.

 

[jodieadair]

I would not be surprised that coming EPA rules will make these little excavators unavailable for import in the near future. They stopped imports in the past until they shoe horned in the B&S gas (Already iffy in CA who wants to eliminate all small gas engines) and now the small Kubota diesels.

You are right, at least we won't have kill switches on all new cars starting in 2026.......right????