Importing and modifying a new mini excavator from China

   / Importing and modifying a new mini excavator from China
  • Thread Starter
#731  
The B&S engines may not be like the one you are using. They basically are simple lawn mower styled governor controlled. Very little speed adjustment is allowed and the spring setup is different. The governor return spring that it has is plenty strong enough. Indeed there are much better gas engine designs that could be used but likely would up the cost of these things.

The operators lever throttle that is on these units allows too much throw travel and someone could easily damage things by trying to force it to the full position. Also because of the nature of the governor by moving the operator lever all the way shut you actually go past the minimum idle setting and just have a bend in the cable at the engine. I will bet that many new owners of one of these units ends up damaging the control by not understanding this.
My XN08 uses the 420cc motor labeled DuroMax. I have also had 2 of the Oking minis with the B&S 420, which is also made in China. I do not recall if the throttle control was any different on the 2 engine types. I did have to loosen the throttle nut and lube the mech on all engines. A second throttle return spring would also have helped, but I did not install one on the Oking units.

I did not mess with the governor spring. Keep that the same.
 
   / Importing and modifying a new mini excavator from China #732  
Picked it up yesterday from the auction yard. Got it home and played with it for a while.



Function wise…the function with the most jerkiness is the hoist. Which gets better when I would multi function. The travel is not as slow as I expected. It is a lot of fun to check the engine oil, but has access underneath to drain the oil.

Now to figure out what pieces I need to install a hydraulic filter
 
   / Importing and modifying a new mini excavator from China
  • Thread Starter
#733  
Now to figure out what pieces I need to install a hydraulic filter
Congrats on the purchase, Rich.

See my post #31 on hydraulic oil filtration:
 
   / Importing and modifying a new mini excavator from China #734  
My mini finally arrived from Shandong. I really like the robust roll cage, with roof and mirror that this one has. I had them install a hydraulic cooler at the factory. I've operated it for about 2 hours and noticed it didn't heat up too much. Like everyone else, it does seem a touch on the jerky side but, I've figured out how to feather the controls more.



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   / Importing and modifying a new mini excavator from China
  • Thread Starter
#735  
I had them install a hydraulic cooler at the factory.
Looks great! Congrats on the purchase. Tell us the particulars on your importation.

Did you also get hydraulic oil return filtration?

Yours is the first I have seen that properly ducts the gas engine flywheel fan air from the outside, as they do with the 1-cyl diesels, and I did with mine.

I also like the reversed boom cylinder and guard. The plastic console with all the gauges, as used in the latest Rhino machines, is an improvement, too. Getting the hyd thumb from the factory is a good idea as well.
 
   / Importing and modifying a new mini excavator from China #736  
Congrats on the purchase, Rich.

See my post #31 on hydraulic oil filtration:

I had read most of this thread. My plan is to use the same filter for the return line. I don’t plan to modify the reservoir, but to adapt to the existing return line, then into the tank from the filter. Discount Hydraulic hose has adapters from DIN2353 fittings to NPT. Nit ideal but cheap and quick.
 
   / Importing and modifying a new mini excavator from China #737  
Looks great! Congrats on the purchase. Tell us the particulars on your importation.

Did you also get hydraulic oil return filtration?

Yours is the first I have seen that properly ducts the gas engine flywheel fan air from the outside, as they do with the 1-cyl diesels, and I did with mine.

I also like the reversed boom cylinder and guard. The plastic console with all the gauges, as used in the latest Rhino machines, is an improvement, too. Getting the hyd thumb from the factory is a good idea as well.
The import process was surprisingly uneventful. I used the suppliers recommended customs broker in California that handled all forms for me. The supplier provided LCL CIF shipping to my inland port of Atlanta. I used the suppliers freight forwarding services, Vanguard Logistics, which handled the crate all the way to my local CFS warehouse. I did not have to interact with the freight forwarder with exception of a phone call to acknowledge the arrival notice and provide an email address. The supplier handled everything.

The crate was dispatched from Shandong on time and I tracked the boat from Qingdao to New York. That journey took about 1 month. Once the vessel arrived in NYC, the crate was processed by US Customs and released in about 10 days. The crate was then transported via rail to Atlanta, where I received it about 3 days later.

I rented a 6x12 U-Haul utility trailer (without the gate) and the forklift operators loaded the crate, no problem. I used a couple 3,000lbs straps to secure the crate and I was driving home! My local CFS warehouse was excellent. I was in, loaded, and out in 45 minutes.

It looks like I did not get any hydraulic filtration, but I vaguely remember asking the supplier about it. I just reviewed the contract from Alibaba and it just says hydraulic oil cooler. I guess I missed the filtration part. I suppose I can add an inline filter?

So far, I've been impressed with this little digger. They used lock washers, everywhere, hard hydraulic lines on the boom and all soft lines were spiral wrapped in either metal or polyethylene. They used actual hinge pins instead of bolts.

The console looks modern with two nice digital back lit instruments. There are two rocker switches on the console, one for the oil cooler fan and one for the boom light. I noticed the rocker switches did not illuminate when in the ON position. I disassemble the switches to find a resistor and LED inside each rocker switch, but the supplier did not wire the LED prongs. Another project for another day.

As mentioned, I was also impressed to see the supplier had ducted the fly wheel air out of the chassis.

I really like this body style of 1 ton. It has a single latch to unlock the "hood" and I can then rotate it back to gain access to the engine bay. No screws or body panels to remove and realign. The ROPS system is the most robust one I've seen. This body style can be configured for 2 or 4 post. The supplier provided parts for both configurations.
 
   / Importing and modifying a new mini excavator from China
  • Thread Starter
#738  
The import process was surprisingly uneventful. I used the suppliers recommended customs broker in California that handled all forms for me. The supplier provided LCL CIF shipping to my inland port of Atlanta.
So, sounds like you went factory-direct or reseller-direct, and not Alibaba?

Lack of oil cooling is very noticeable, since these machines get really hot, especially when used in hot weather. I have seen a machine with Kubota diesel that integrated oil cooling into the water coolant radiator.

Lack of oil return filtration (10u) is not really noticeable until your pump wears out at 200hr.
 
   / Importing and modifying a new mini excavator from China #739  
So, sounds like you went factory-direct or reseller-direct, and not Alibaba?

Lack of oil cooling is very noticeable, since these machines get really hot, especially when used in hot weather. I have seen a machine with Kubota diesel that integrated oil cooling into the water coolant radiator.

Lack of oil return filtration (10u) is not really noticeable until your pump wears out at 200hr.
I used Alibaba for this transaction as this was my first import. I wanted to have their tradeassurance support.
 
   / Importing and modifying a new mini excavator from China #740  
So the answer is Yes Vicsec Buckets do have 25mm pin holes everyone
 

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