Importing and modifying a new mini excavator from China

[oldrustysteel]

And where is that relief valve adjustment? The only thing I have found was under the right stick valve body (boom up/down, bucket in/out) but left it alone until I get more into it. No other visible adjustment for anything else other than the tracks. Also, this system here does not send me notices when someone posts or replies? My settings say to do it, but...............View attachment 842661

Its the gold looking thing with the locknut and the allen head screw in the bottom. However, will be better if dfkrug confirms it.

 

[dfkrug]

And where is that relief valve adjustment?

In the center of your photo is the system RV assembly. The gold colored part is the body, the black nut is to lock the setting, and you adjust the end with a hex key. Clockwise is higher pressure.

On more sophisticated equipment, you will have a work-port RV, aka shock-relief, on some of the work-port circuits. Even most compact tractor backhoe attachments have a shock RV on at least the boom-down work port.

 

[Schmecky]

In the center of your photo is the system RV assembly. The gold colored part is the body, the black nut is to lock the setting, and you adjust the end with a hex key. Clockwise is higher pressure.

On more sophisticated equipment, you will have a work-port RV, aka shock-relief, on some of the work-port circuits. Even most compact tractor backhoe attachments have a shock RV on at least the boom-down work port.

Thank you Sir. I will play with it this coming spring when its outside. Possible to blow a hose off a fitting and that would be very bad if done in my shop. Got a 67 C10 Chevy 98% restored/modified sitting right beside it.

 

[Fredrik]

Well folks I finally nailed down the brass tacks on my excavator.
Here are the specs
* Kubota 902
*Telescoping tracks
*320 MM wide tracks
*Side swing arm . 56 degree each side.
*Hydraulic oil cooling and filtration.
*SAE controls/ Backhoe.
*Three Japanese Pumps
*Northern Hydraulics valve block
*Enclosed,Inside the track, 2 speed travel motors, plunger type.
*Oversized cylinders.
*In the arm hoses
*30 mm pins
*800mm tilt bucket
*Log Graber
*Ripper
*Narrow bucket
*Trash/Brush rake
*Third function
*Quick hitch
*Extra slew motor
*10 extra attachment pins/ attachments didn't come with.
*2Year Parts and labor on all components.( we shall see how this is gonna work)
*Cheapo canopy/ They couldn't do ROPS
*All up weight ...2.1203 tons dry
* DDP $ 14,670.
PHEW!!
Crated and on its way through Alibaba. Felt safer this way.

 

[Fredrik]

 

[dfkrug]

*2Year Parts and labor on all components.( we shall see how this is gonna work)

Yeah, who will do the labor?

As for 320mm tracks, that's pretty wide. Mine have all been 180mm.

I am sure you will post when it shows up.

Congrats in advance.

 

[oldrustysteel]

Well folks I finally nailed down the brass tacks on my excavator.
Here are the specs
* Kubota 902
*Telescoping tracks
*320 MM wide tracks
*Side swing arm . 56 degree each side.
*Hydraulic oil cooling and filtration.
*SAE controls/ Backhoe.
*Three Japanese Pumps
*Northern Hydraulics valve block
*Enclosed,Inside the track, 2 speed travel motors, plunger type.
*Oversized cylinders.
*In the arm hoses
*30 mm pins
*800mm tilt bucket
*Log Graber
*Ripper
*Narrow bucket
*Trash/Brush rake
*Third function
*Quick hitch
*Extra slew motor
*10 extra attachment pins/ attachments didn't come with.
*2Year Parts and labor on all components.( we shall see how this is gonna work)
*Cheapo canopy/ They couldn't do ROPS
*All up weight ...2.1203 tons dry
* DDP $ 14,670.
PHEW!!
Crated and on its way through Alibaba. Felt safer this way.

WOW!! Looks like you didn't miss anything, you ordered the best of the best.. Cant wait to see it.. Cant wait to borrow it! Thats a heck of a deal too!! Be sure to keep us posted!!

 

[TimberFarm]

Well folks I finally nailed down the brass tacks on my excavator.
Here are the specs
* Kubota 902
*Telescoping tracks
*320 MM wide tracks
*Side swing arm . 56 degree each side.
*Hydraulic oil cooling and filtration.
*SAE controls/ Backhoe.
*Three Japanese Pumps
*Northern Hydraulics valve block
*Enclosed,Inside the track, 2 speed travel motors, plunger type.
*Oversized cylinders.
*In the arm hoses
*30 mm pins
*800mm tilt bucket
*Log Graber
*Ripper
*Narrow bucket
*Trash/Brush rake
*Third function
*Quick hitch
*Extra slew motor
*10 extra attachment pins/ attachments didn't come with.
*2Year Parts and labor on all components.( we shall see how this is gonna work)
*Cheapo canopy/ They couldn't do ROPS
*All up weight ...2.1203 tons dry
* DDP $ 14,670.
PHEW!!
Crated and on its way through Alibaba. Felt safer this way.

Sounds like a good deal. Let us know when it comes in.

 

[jaylast]

Nice Fredrik, the 12" trackwidth should be a nice upgrade, and larger pins- Is the width and length of tracks/base also longer/wider? I think 1250W/1500L is pretty good with ~2t machines. Is the reach imporved also? Think I've seen about 166 to 190 cm down fairly standard up to 2t.
I personally wanna learn more about the 3 pump arrangement - iirc this is the most desirable hydraulics setup with separated outputs for separate valve blocks/sections each for travel/pilot/functions.

Very very nice 4 the price, can't wait to hear/see more!

 

[Fredrik]

Yeah, who will do the labor?

As for 320mm tracks, that's pretty wide. Mine have all been 180mm.

I am sure you will post when it shows up.

Congrats in advance.

The company said they would give me credit on future purchases for labor with notarized bill . Of course this is strange , but might work, who knows. I'll be doing all the labor .