I'll have to say having just purchased a new FF12 MiniEx, I've watched all your videos and am learning a ton about these things from you. I am a fabricator and you have definitely motivated me to make improvements to the hydraulic system and understand the way these things work. Bought mine to move along a retaining wall project at my house and to use at my job at an oyster farm in Maryland to install some drainage systems in our nursery. Keep the content coming and I've shared your page with several others that have Minis. I'll be sure to share my custom mods with you as I progress. Seriously...Thanks!
I just want to thank you for your videos. I recently purchased a ff12 model excavator and your videos are the best source for maintenance and repair advice I have found anywhere!
Thanks for the video and info. Just broke something on that motor today. The log I was trying to handle was a little too big for it. (Nuoman 1.7) The nut on the bottom of it is spinning but the gear isn't moving. I feel like the cold weather could be an issue too since the right track control arm broke off a few days before... I'll be taking it off tomorrow!
Damn Cam! I just asked you to do this like 2 days ago. You dont mess around. Haha. Thanks man. I see you have another 20 subs since then also. Good for you, you're putting out very helpful content for a lot of people. Absolutely by far the best info out there. Thanks again.
Awesome videos bro! One of my favorite things about owning one of these is working on them and getting to learn about engines and hydraulics. Thanks for breaking down the basics!
Great video and explanation. My question is, the motor that you pulled, was it held down with Allen cap bolts? On my QH12 it's almost impossible to properly torque that motor down.
Yes mine has allen head bolts and when I realized excessive slop I discovered all the bolts were loose. Had to use a allen socket in a box end wrench to tighten. Still couldn't get it as tight I'd of liked to.
Great video, I have a 2 ton excavator with a small amount of play when swinging left or right. You answered my question about having a bit of slop in the gears. Guess it's something I'll have to tolerate at this price point.
Is it still doing fine, no change? I also have a 2 ton at about 10 hours now, wondering if the motor is adjustable. Mine is a Typhon Terror 18 variety. It's been like this since new. The motor appeared to be tight when I first got it, though I haven't gotten around to actually checking the tightness of the bolts but it seems odd there's no adjustment avaliable. It would make sense that you could at least turn the motor one bolt in either direction and affect some change to the gear engagement. I'm gonna go out and look here in a minute actually. Plus where's the grease fittings for it?
I just bought a "VOTE" machine that appears to be very different from your 2 machines. I am appreciating your presentations very much as the individual components are similar and the overall functioning / operating information is very interesting. Your presentation is very clear and concise. Thanks for making this information available. p.s. Where can I find more information about Kyles Underpinning project as I am doing the same. +New Subscriber NOW!
Great videos, thanks! I have, what I believe to be the same mini excavator as the yellow and black one you use in your videos (mine has no labelling anywhere). It's very difficult on my machine to 'fine tune' the left and right swing - for example when trying to line up the pins on a quick connect. The reason for this is that the small fitting on the turntable deck does not appear to fit tightly and is a welded-on stub that fits in a notch. On mine this setup is easy to see as it's centered in the engine compartment roughly between the operator's feet. The play at the fitting is about 3/16" which equates to around a foot at the bucket when fully extended. Are these machines manufactured this way or is mine damaged?
For anybody buying one of these at auction, i would advise you check it out first. I went to an auction site in person wherre they had around 40 of these Chinese excavators coming up for auction. I was checking out the movement in the boom. One of them was obviously missing bushing in the boom. It had all kinds of slop in the boom compared to all the rest of them.
You might want to let folks know what size the bolts are that mount the motor. Mine stripped out due to the fact that the motor was loose and the play in the system damaged the bolts. I'll go to the Hardware store to see if I can find the exact size. The top of the Hex Bolt is TBF 8.8 but that isn't very helpful on the internet.
What kind of grease do you use on your machines? Should every zerk use a moly grease except for the one line that leads to the swivel bearings? And use moly on the swivel gear? Thanks
Why not simply remove one of the other bolts and measure it? Drop it in both holes without engaging the threads and make sure the bolt projects out of both holes the same amount. This will be a great indication that the two bolts should be the same length. If there is a height variation it will let you know how much longer or shorter the missing bolt should be
I have a problem with the swing motor on the Chinese mini-excavator, which means that when the dome turns in a certain position, it squeaks, I feel as if it is grinding on some sheet metal. What could be the problem?
I have a new AGT QK16R. It stopped rotating at about 3 hours. It was leaking where all the bolts on top of the rotator motor loose. I tightened them up and topped off the hydraulic fluid. It started working again but the warmer the engine gets, the weaker the rotation gets until it stops rotating. Every other function works perfectly when warm except the rotate. Any suggestions? Thanks for the video.
Maybe it needs bleeding, air in the lines from the previous leak. You could loosen the connection at the return side maybe and let it burp, then retighten. I don't know if it needs to run or even be bled at all but I'd get a second opinion before starting it to bleed the line as hydraulic fluid under pressure is not my monkey, so to speak.
@ “Thanks a lot Tucker” Hey I appreciate that advice, I figured it out this past weekend. Strangely enough, the bolts on top of the pump had loosened right back up (very quickly). I pulled the floor board out and checked them and they were all loose again. Only this time I just parked the machine when the rotation problem started again so it never got loose enough to start leaking fluid. Apparently the bolts can back out just a little way and as the fluid gets warmer it starts recirculating inside the motor or bypassing the place where it is supposed to be directed to. I tightened them up and ran it for about two hours and the rotation is way stronger than before. I was actually able to sweep dirt with the bucket which was a no go before. I will try to make a video about it soon. Thanks again for your input,it’s truly appreciated.
Don't feel too bad. I had an AGT L12, and I had a lot of play also. I sold it and now have a Kabota. The Kabota is a very nice machine but it has play in it also. I believe that is just something you have to get used to.
@@markmarcotte8651 just those 4 bolt hold the motor. The center face does stick down into the mounting hole. I used a hydraulic jack after removing the 4 bolt, and jacked from the bottom. I lifted the whole unit before the motor popped loose. The leak on mine was just a bad o-ring. I got a new one from a local hydraulic. It wasn't a perfect match (metric vs imperial) but it's been working fine.
My hoses may have been swapped on my h12 the manual calls for 0.5 kg of Grease for both the slewing bearing and teeth, I used a cordless grease gun and spun the cab at the same time while greasing, hoping I didn't damage anything because I pumped about a whole tube of Grease into there.
I have the new AGT DY-12C. Slightly different hydraulic tank setup with tank being built in under the seat. I'm adding a cooler and wondering if you know the correct name of the fitting type to return from valve body with the taper and O ring. I believe it's bspp but don't know the name for the o ring style. It's not orb style. Don't think I can post pics in comments
could i bother you to know how this machine was delivered to you? i just ordered mine from amazon, it specifically states i need a fork lift to unload it. im trying to figure out how im going to make that work lol
I picked it up at a vendors house, but I’ve found a good post to a local Facebook group will give you someone who is willing to use their business address and forklift to unload it onto a trailer for you
I have a Vicsec mini excavator. My swing gear broke. I sent it to a mechanist and he has ghosted me. He won’t send me my broken part back. How do I fix my excavator now? He won’t answer calls or texts. Any help would be appreciated.
Did you find the gear? I have a broken one as well. I found a gear with the right outside dimensions, but need to get the inside splines machined to match the motor now.
I'll have to say having just purchased a new FF12 MiniEx, I've watched all your videos and am learning a ton about these things from you. I am a fabricator and you have definitely motivated me to make improvements to the hydraulic system and understand the way these things work. Bought mine to move along a retaining wall project at my house and to use at my job at an oyster farm in Maryland to install some drainage systems in our nursery. Keep the content coming and I've shared your page with several others that have Minis. I'll be sure to share my custom mods with you as I progress. Seriously...Thanks!
I just want to thank you for your videos. I recently purchased a ff12 model excavator and your videos are the best source for maintenance and repair advice I have found anywhere!
Thanks for the video and info. Just broke something on that motor today. The log I was trying to handle was a little too big for it. (Nuoman 1.7) The nut on the bottom of it is spinning but the gear isn't moving. I feel like the cold weather could be an issue too since the right track control arm broke off a few days before... I'll be taking it off tomorrow!
Damn Cam! I just asked you to do this like 2 days ago. You dont mess around. Haha. Thanks man. I see you have another 20 subs since then also. Good for you, you're putting out very helpful content for a lot of people. Absolutely by far the best info out there. Thanks again.
No time to waste spreading the knowledge
How do you drain the hydraulic fluid from the tank
@@JohnEllis-u1u sadly no nice way exists. Most people suggest a fluid evacuator
Awesome videos bro! One of my favorite things about owning one of these is working on them and getting to learn about engines and hydraulics. Thanks for breaking down the basics!
Even if I NEVER have an issue with my mini ex, these videos are priceless.
Love your channel! You have a ton of knowledge that I'll need. I just placed my order for my H12. Thanks!
Donde la pediste ? cuanto es su costo ? Suerte.
I want to know more about the Psycho that disassembled his excavator to reassemble it in a confined space.
Great video and explanation. My question is, the motor that you pulled, was it held down with Allen cap bolts? On my QH12 it's almost impossible to properly torque that motor down.
Mine has normal bolts, but did require a wobble socket to tighten
I think I'll replace them. Thank you for your response.
Yes mine has allen head bolts and when I realized excessive slop I discovered all the bolts were loose. Had to use a allen socket in a box end wrench to tighten. Still couldn't get it as tight I'd of liked to.
Great video, I have a 2 ton excavator with a small amount of play when swinging left or right. You answered my question about having a bit of slop in the gears. Guess it's something I'll have to tolerate at this price point.
Is it still doing fine, no change? I also have a 2 ton at about 10 hours now, wondering if the motor is adjustable. Mine is a Typhon Terror 18 variety. It's been like this since new. The motor appeared to be tight when I first got it, though I haven't gotten around to actually checking the tightness of the bolts but it seems odd there's no adjustment avaliable. It would make sense that you could at least turn the motor one bolt in either direction and affect some change to the gear engagement. I'm gonna go out and look here in a minute actually. Plus where's the grease fittings for it?
I just bought a "VOTE" machine that appears to be very different from your 2 machines. I am appreciating your presentations very much as the individual components are similar and the overall functioning / operating information is very interesting. Your presentation is very clear and concise. Thanks for making this information available. p.s. Where can I find more information about Kyles Underpinning project as I am doing the same. +New Subscriber NOW!
Great videos, thanks! I have, what I believe to be the same mini excavator as the yellow and black one you use in your videos (mine has no labelling anywhere). It's very difficult on my machine to 'fine tune' the left and right swing - for example when trying to line up the pins on a quick connect. The reason for this is that the small fitting on the turntable deck does not appear to fit tightly and is a welded-on stub that fits in a notch. On mine this setup is easy to see as it's centered in the engine compartment roughly between the operator's feet. The play at the fitting is about 3/16" which equates to around a foot at the bucket when fully extended. Are these machines manufactured this way or is mine damaged?
For anybody buying one of these at auction, i would advise you check it out first. I went to an auction site in person wherre they had around 40 of these Chinese excavators coming up for auction. I was checking out the movement in the boom. One of them was obviously missing bushing in the boom. It had all kinds of slop in the boom compared to all the rest of them.
You might want to let folks know what size the bolts are that mount the motor. Mine stripped out due to the fact that the motor was loose and the play in the system damaged the bolts. I'll go to the Hardware store to see if I can find the exact size. The top of the Hex Bolt is TBF 8.8 but that isn't very helpful on the internet.
What kind of grease do you use on your machines? Should every zerk use a moly grease except for the one line that leads to the swivel bearings? And use moly on the swivel gear? Thanks
Thanks for the great videos! What is the procedure for adding grease for this if you can't see when grease has come out the other end of the hoses?
It takes a lot of grease... 1/2 kg. Pump like 20 pumps in each nipple and rotate machine 1/8 turn then repeat until 360° reached.
I'm missing one of the 8mm bolts that hold down the slewing/swivel motor. Anyone know the exact measurements or where to find a replacement? thanks!
Why not simply remove one of the other bolts and measure it? Drop it in both holes without engaging the threads and make sure the bolt projects out of both holes the same amount. This will be a great indication that the two bolts should be the same length. If there is a height variation it will let you know how much longer or shorter the missing bolt should be
Thanks for the videos! Great info, I have a AGT LS15R I can’t find any info on this model, do you know anything about it?
And the swing gear has some play
I have a problem with the swing motor on the Chinese mini-excavator, which means that when the dome turns in a certain position, it squeaks, I feel as if it is grinding on some sheet metal. What could be the problem?
Could you show how to connect a quick hitch hydraulic hoses to a kubota u20-3 machine. Tks.
Anybody know the actual procedure for greasing the slewing bearing and gear, how many pumps of Grease? Thanks
How often and how many pumps on those two fittings?
I have a new AGT QK16R. It stopped rotating at about 3 hours. It was leaking where all the bolts on top of the rotator motor loose. I tightened them up and topped off the hydraulic fluid. It started working again but the warmer the engine gets, the weaker the rotation gets until it stops rotating. Every other function works perfectly when warm except the rotate. Any suggestions? Thanks for the video.
Maybe it needs bleeding, air in the lines from the previous leak. You could loosen the connection at the return side maybe and let it burp, then retighten. I don't know if it needs to run or even be bled at all but I'd get a second opinion before starting it to bleed the line as hydraulic fluid under pressure is not my monkey, so to speak.
@ “Thanks a lot Tucker”
Hey I appreciate that advice, I figured it out this past weekend. Strangely enough, the bolts on top of the pump had loosened right back up (very quickly).
I pulled the floor board out and checked them and they were all loose again. Only this time I just parked the machine when the rotation problem started again so it never got loose enough to start leaking fluid. Apparently the bolts can back out just a little way and as the fluid gets warmer it starts recirculating inside the motor or bypassing the place where it is supposed to be directed to.
I tightened them up and ran it for about two hours and the rotation is way stronger than before. I was actually able to sweep dirt with the bucket which was a no go before.
I will try to make a video about it soon.
Thanks again for your input,it’s truly appreciated.
Mine is brand new but has excessive rocking. I was hoping there was a way to tighten things up.
Don't feel too bad. I had an AGT L12, and I had a lot of play also. I sold it and now have a Kabota. The Kabota is a very nice machine but it has play in it also. I believe that is just something you have to get used to.
I have a leak from the swivel motor. I've removed the 4 bolts, but I cannot get it out. Is there more holding that swivel motor in place?
Nothin holds it but those 4 bolts
I have the same problem with my swivel motor. Did you figure out your leak? Would you mind sharing your info. Thanks.
@@markmarcotte8651 just those 4 bolt hold the motor. The center face does stick down into the mounting hole. I used a hydraulic jack after removing the 4 bolt, and jacked from the bottom. I lifted the whole unit before the motor popped loose. The leak on mine was just a bad o-ring. I got a new one from a local hydraulic. It wasn't a perfect match (metric vs imperial) but it's been working fine.
Good contents
How do you adjust swivel or swing pressure as mine is loose and moving on slope. And wonder what is the problem? THANKS
My hoses may have been swapped on my h12 the manual calls for 0.5 kg of Grease for both the slewing bearing and teeth, I used a cordless grease gun and spun the cab at the same time while greasing, hoping I didn't damage anything because I pumped about a whole tube of Grease into there.
I have the new AGT DY-12C. Slightly different hydraulic tank setup with tank being built in under the seat. I'm adding a cooler and wondering if you know the correct name of the fitting type to return from valve body with the taper and O ring. I believe it's bspp but don't know the name for the o ring style. It's not orb style. Don't think I can post pics in comments
It’s referred to as a DIN 24-degree fitting, and it’s a 15L DIN fitting
could i bother you to know how this machine was delivered to you? i just ordered mine from amazon, it specifically states i need a fork lift to unload it. im trying to figure out how im going to make that work lol
I picked it up at a vendors house, but I’ve found a good post to a local Facebook group will give you someone who is willing to use their business address and forklift to unload it onto a trailer for you
thanks man i appreciate that! i live in poplar bluff missouri though. ill be using this to dig up a sewer main@@thegarageconnection
I have a Vicsec mini excavator. My swing gear broke. I sent it to a mechanist and he has ghosted me. He won’t send me my broken part back. How do I fix my excavator now? He won’t answer calls or texts. Any help would be appreciated.
You need a whole new slewing motor probably
Did you say you have a manual?
Available from Agrotk website free of charge
Thank you for the video 👍
Would you please show a little better where the grease fittings are on the front for slew bearing
They are on the front of the machine just to the side of the main boom attachment point
Is the little gear that’s on the hydro motor replaceable ?
I’d imagine it is, what brand machine do you have
I have a ht10 high top 10. I need the gear for the turntable that go on the pump motor can you help me get one
Did you find the gear? I have a broken one as well. I found a gear with the right outside dimensions, but need to get the inside splines machined to match the motor now.
Where are the grease fittings located for bearing?
2 nippes on the front of the body, next to the boom
I put longer mounting bolts in swival motor as mine were lose and only seam to go in about 6 thread with lock tight.
Excellent. Great information.
I’d like to see some mods like upgrading pumps drive motors ect
Nice!
Thank you that’s what I thought
your voice volume is always way to low