Hi Jeramy, regarding the thumb speed, yes changing thumb to the hammer attachment side is faster, 100 Lpm, vs the 67Lpm. So will be 1.5 times faster, also adjustable if you needed it slower than that( page 39 of your operators manual) Just make sure the valve is set to 2 way flow position, page 49. Its similar to my kx080-3 Don't change the relief valve on the auxiliary circuit, it doesn't affect flow rate, only at what pressure the relief kicks in.
@2098723 Yes. The main concern is that the relief won't bypass for the thumb and damage the cylinder. Since the video, I have talked in depth about switching and decided against it. Thank you very much for watching, and have a wonderful weekend 😀
@@jeramyreberpuredirt7873I'd say if you were talking to the dealer, they wouldn't want to say yes, because the thumb is hooked to a auxiliary port labelled "thumb port" in the manual, and don't want liability. Both the "thumb" aux😂iliary port and normal auxiliary port have separate relief valves for both flow directions and all have the same stock relief of 2987 psi. Your thumb cylinder isn't affected from a faster flow rate, as it doesn't change the pressure in the cylinder. If the standard auxiliary circuits relief didn't work, I would have blown seals out of my lower pressure attachments. I change my relief settings between using different attachments often, it's only a half hour job once you know where on the control valve bank the relief valves are. If you're still concerned you can even lower the relief to super low, then over power the thumb with the bucket, for for proof of concept. But the relief should be identical from stock anyway though. Not trying to sound like some keyboard warrior though LOL. Just trying to help.
@2098723 I appreciate it, and I don't always take what my dealer tells me as gospel. I was friends with the old shop forman and trusted his word a little more than the new forman. Thank you, and have a wonderful weekend 😀 and I didn't feel like you were being a keyboard warrior 😁
As long as the thumb is not running off of a fixed displacement pump on one of the auxiliary circuits, a mechanic with a flow meter (or your dealer) can turn up the pilot pressure to get you more flow and make that thumb way faster. In turn you May have to back off the thumb relief a little but will make the thumb speed more desirable. I always set up machines where thumb speed is barely slower than bucket speed or almost the same.
@madmax700r5 I've spoken to my dealer extensively about it, and they say they can't improve it. What you are saying makes sense to me. I am going to show them your comment and see what they have to say. Thank you for your input. Have a wonderful evening 😊
I have many hours on 121-2 and-3 they were really good machines. I have had very good luck with the Kubota excavators. Thank you for watching, and have a wonderful day 😀
I understand what you were saying about being more productive per gallon of fuel. I also understand you can now do jobs that were too big for the 40. I also understand you can charge more per hour for the bigger machine. But, I do have a question since you are a one-man operation. Since you can only operate one machine at a time, have you found it better for the bottom line of the business to have one or two excavators? I realize it may be too early to tell since you are probably building up customers for the bigger machine. (Is the downtime of the unused machine cutting into the bottom line too much, or does it over compensate for the extra depreciation, etc). Thanks ahead of time for the response.
It has helped because I generally have a full schedule. What the bigger machine has helped me with and has made more profits is time. Being able to get a large job fiished in 2 days instead of 3 or 4 opened up time to fit more jobs into the same time period. And like you say, I have done a few jobs with it. I couldn't have gotten done with the 40. And the other upside, getting jobs done faster, sometimes I might actually get a day off. That is worth something right there. So yes, it is a little soon to tell how well it's all going to work out, but so far, I feel it's been a success. Thank you for watching, and I hope you have a wonderful day 😀
@justinbrown1861 Since I have filmed this, I have dug deeper into switching lines. I decided not to because the relief on the other circuit is not set for the thumb, and you could easily damage the cylinder. My tracks are 24". Thanks for watching, and have a wonderful day 😀
Hi Jeramy, regarding the thumb speed, yes changing thumb to the hammer attachment side is faster, 100 Lpm, vs the 67Lpm.
So will be 1.5 times faster, also adjustable if you needed it slower than that( page 39 of your operators manual)
Just make sure the valve is set to 2 way flow position, page 49.
Its similar to my kx080-3
Don't change the relief valve on the auxiliary circuit, it doesn't affect flow rate, only at what pressure the relief kicks in.
@2098723 Yes. The main concern is that the relief won't bypass for the thumb and damage the cylinder. Since the video, I have talked in depth about switching and decided against it. Thank you very much for watching, and have a wonderful weekend 😀
@@jeramyreberpuredirt7873I'd say if you were talking to the dealer, they wouldn't want to say yes, because the thumb is hooked to a auxiliary port labelled "thumb port"
in the manual, and don't want liability.
Both the "thumb" aux😂iliary port and normal auxiliary port have separate relief valves for both flow directions and all have the same stock relief of 2987 psi.
Your thumb cylinder isn't affected from a faster flow rate, as it doesn't change the pressure in the cylinder.
If the standard auxiliary circuits relief didn't work, I would have blown seals out of my lower pressure attachments. I change my relief settings between using different attachments often, it's only a half hour job once you know where on the control valve bank the relief valves are.
If you're still concerned you can even lower the relief to super low, then over power the thumb with the bucket, for for proof of concept.
But the relief should be identical from stock anyway though.
Not trying to sound like some keyboard warrior though LOL.
Just trying to help.
@2098723 I appreciate it, and I don't always take what my dealer tells me as gospel. I was friends with the old shop forman and trusted his word a little more than the new forman. Thank you, and have a wonderful weekend 😀 and I didn't feel like you were being a keyboard warrior 😁
Nice review!
@MollerFarm Thank you 😊
As long as the thumb is not running off of a fixed displacement pump on one of the auxiliary circuits, a mechanic with a flow meter (or your dealer) can turn up the pilot pressure to get you more flow and make that thumb way faster. In turn you May have to back off the thumb relief a little but will make the thumb speed more desirable.
I always set up machines where thumb speed is barely slower than bucket speed or almost the same.
@madmax700r5 I've spoken to my dealer extensively about it, and they say they can't improve it. What you are saying makes sense to me. I am going to show them your comment and see what they have to say. Thank you for your input. Have a wonderful evening 😊
Great video,been a IUOE operator for over 35 years,love the Kubotas a lot of hours on KX series 121,161,91.
I have many hours on 121-2 and-3 they were really good machines. I have had very good luck with the Kubota excavators. Thank you for watching, and have a wonderful day 😀
Great review Jeramy. Have a great day.
@@albertbell2561 Thank you very much. Have a wonderful evening 😊
great Video Jeramy, what size bucket were you running there??
@DCSuperShine Thank you very much. It's a 36". Thank you for watching, and have a wonderful evening 😊
Thanks for the review. You sure make it look easy operating that machine. I’m not fooled though. It’s Your experience is what makes it look easy.
@@todd4654 Thank you very much for the kind words. I hope you are having a wonderful day 😀
On my bobcat you can adjust the power of the thumb in settings, I have mine turned to less power since it was too fast for me
I did the same with my bobcat. Thing was quick as lightning from the factory.
@PrismaticFarm you can do the same with the Kubota, I have it turned all the way up. Thanks for watching, and have a wonderful day 😀
@@Chris-bn5cv 👍
Glad you like it! Sweet machine! I have the u48-5. Dont have much hours on it yet but so far its been great!
@andy84wilson I haven't been around a u48 yet. They look like a very nice machine. Thank you for watching, and have a wonderful day 😀
Sweet machine! I hope to end up with one eventually. Thank you for the review!
@@billygrossjr.5585 Thank you for watching. Have a wonderful day 😀
I understand what you were saying about being more productive per gallon of fuel. I also understand you can now do jobs that were too big for the 40. I also understand you can charge more per hour for the bigger machine. But, I do have a question since you are a one-man operation. Since you can only operate one machine at a time, have you found it better for the bottom line of the business to have one or two excavators? I realize it may be too early to tell since you are probably building up customers for the bigger machine. (Is the downtime of the unused machine cutting into the bottom line too much, or does it over compensate for the extra depreciation, etc). Thanks ahead of time for the response.
It has helped because I generally have a full schedule. What the bigger machine has helped me with and has made more profits is time. Being able to get a large job fiished in 2 days instead of 3 or 4 opened up time to fit more jobs into the same time period. And like you say, I have done a few jobs with it. I couldn't have gotten done with the 40. And the other upside, getting jobs done faster, sometimes I might actually get a day off. That is worth something right there. So yes, it is a little soon to tell how well it's all going to work out, but so far, I feel it's been a success. Thank you for watching, and I hope you have a wonderful day 😀
The main downside I do see is more machines to maintain. That is definitely not a plus.
Great question. I would be interested in hearing Jeremy’s answer too that.
@@todd4654 I responded above. 🙂☝️thank you 😊
Nice review on your 80.
Thank you. I hope you have a wonderful day 😀
Been thinking on switch to other lines as well , that is my only complaint as well, what size are you tracks ?
@justinbrown1861 Since I have filmed this, I have dug deeper into switching lines. I decided not to because the relief on the other circuit is not set for the thumb, and you could easily damage the cylinder. My tracks are 24". Thanks for watching, and have a wonderful day 😀
👍
@@MyBsquared 🙂