Video

Burning ~1 litre of diesel per hour (~10 kWh energy) to get ~1 m³ of wood chips that's ~250 kg and gives ~1000 kWh of heat when burned, I think it's a pretty good tradeoff.

riversa.es/

Haven't got the users/operators/workshop manual but there is some various documents available at: maskinisten.net/downloads.php?cat=4 For my machine I drew up some button explanations: docs.google.com/spreadsheets/d/1FUjGNzfdxIHT6HWbY5-0leUJ8Pe5r9YKcCSPTFwTouc

Some of the jerky sideways sloshing is because the quick attach is not very preciesly made on my 260, you can almost fit two M24 washers between the bottom adapter eye and Avant plate. Also side to side there's a quite a bit of slack. Not sure if I had the washers installed on this video, but it definately needs to be tightened up, then side to side motion won't jerk around so much, if at all. Haven't tried with the spikes much, but I did lower the blade a notch or two so that the blade is lower than fully retracted legs are. So then most of the time the blade should dig in also. Also on this video I think I forgot to put on the parking brake, that's why the tyres are rotating. They should do a demoday with moist clay, that'll be frustratingly (not) fun -.- In Estonia the local dealer is also building a new ~2000 m² showroom/office.

I'll try to do a video about it, but basically you undo two nuts under the lower piece of the glass and lift it out, then attach the digger to the quick coupler, secure it to the boom with a pin manually, attach the hydraulics and carefully shimmy the digger control levers through the window opening. And you'll have to be very careful not to pinch the levers against the upper window edge when booming in/out and/or lifting the boom. It would be great if the window could be lifted up in one piece under the roof like on excavators, but it's not designed to do so, and with GT cab I'm not sure there would be enough headroom for it, but I'll try to model it up oneday, maybe it's doable.

Why not both?

I'm not sure the single shank ripper on 210/260 would do much better than a 250 mm wide bucket, as the cylinders are quite small and they don't put out quite enough force for the heavy duty ripper action. Better would probably be to have the ripper direct attached to Avant coupler. I'll do a 260 push/pull force measurement video oneday... I have the multimode machine "Stahlwerk WIG TIG AC/DC 200 + Plasma S" from around 2013. The plasma part works fine but not ideal for 10+ mm plates. Ideally should get a separate 5+ kW threephase compressor but for this kind of small cuts even my ~1 kW with 24 litre tank worked fine. On the plasmacut/compressor clips I tuned down the audio -12 dB, so it was actually 4 times louder or so. The pins I left with just the tackwelds, they're not going anywhere even with those and easier to remove once the need arises, probably never though.

I agree that Avant itself would have more power if a ripper was made for the normal work device fitting. It has much larger cylinders than those excavator devices. The problem I have had is that Avant has to be moved more if a ripper is directly in Avant. With the excavators it usually doesn’t need so much to drive around though it takes time. Thinking of a wet and soft ground and tractor type tires I have. I have 400 and 250 mm buckets and a special prototype ditch bucket for the excavator. The ditch bucket is a proto and Avant didn’t give any warranty and I use it on my own risk in the excavator. They made several years ago some of those and I bought it last year when they emptied their storages. The ditch bucket is actually better for stumps than 250 mm bucket. It is maybe 200 mm on the bottom and 600 mm on the top. It is taller then either of the normal buckets and it has very sharp sides. It also empties better than those other buckets because of the shape. I have quite a lot of clay here and especially the 250 mm bucket fills up with clay and it won’t empty itself, maybe 2/3 is filled all the time when digging clay. I’ve dug up stumps using all three buckets. The largest stumps have been of about 35 cm diameter pine and birch. Both fresh stumps. Took for awhile. The excavator couldn’t lift those. I had to roll them on the ground. I think 210 exc. has 50/25 cylinders. 50 being the inner diameter of cylinder (piston) and 25 being the diameter of the rod both in mm. Not sure though. I’ve been thinking if it was possible to switch the bucket cylinder and the boom cylinder (closest to Avant) to 60/30 if there was enough space. 210 is much smaller and lighter than 260 (about 230 kg only vs 420 kg or something). So it might not be able to handle the bigger cylinders.

Just did some digging in moist clay/peat/gravel mix of materials and yup the 250 mm bucket gets clogged up in ja jiffie -.- Measured the 260 digger cylinders, rod/barrel outside: Boom 32/73 mm Arm 36/73 mm Bucket 36/73 mm Turning 30/70 mm Tilt 25/50 mm Guessing the barrels have 5 mm wall thickness, then at 200 bar they apply push/pull force of: Boom 6.4/4.7 tons Arm 6.4/4.3 tons Bucket 6.4/4.3 tons Turning 5.8/4.3 tons Tilt 2.6/1.6 tons Based on: www.trelleborg.com/en/seals/resources/design-support-and-engineering-tools/hydraulic-system-calculator SolidWorks or some other similar software could be used to find out the structural load limit based on the boom material design and thicknes. Compared to the 635 that weighed ~1.6 tons and had only one 36 kg rear weight, the 650i with 180 kg rear side weights and 36 kg rear weight (total ~2.2 tons with driver + ~0.5 tons the 260 digger) is now much more stable for digging, blade and outriggers down, parking brake on and it hardly ever moves forward due to digger pulling it.

I just hate how CZcams comment field works with iPad. Have to retype … ----- Your 260 is more powerful clearly. I googled this because I jave not registered on the Finnish Avant site to download documents. I have the needed docs on paper. shop.avant-lader.ch/out/media/Backhoe%20260-3%20a37510%20&%20a433851%202020-06-10%2009-27-07.pdf That link has the PDF of parts list of 260. The document is published in June 2020. The boom seems to be D63/32 and the arm is D63/36. The bucket is D63/36. You got the wall thickness correct. My Avant is about 1,6 tons with the driver. 210 is about 230 kg. 210 digger can’t move my Avant, but it can easily lift the front wheels up in the air if the bucket is moving downwards. Well, digging a hole in the ground. 520 model has maximum work pressure of 185 bar. Having smaller cylinders and less pressure 210 digger on 520 Avant is clearly weaker on what comes to the cylinders. I checked on trelleborg site the boom cylinder lifting force and it is only about 2,8 tons. That is the worst because it is a pulling movement. Pushing force was about 3,7 tons. But those are only the values of the cylinders. The measurements and the geometries of the whole backhoe should be considered. It depends a lot of how the triangulars are in the backhoe. I mean if the cylinder can pull with 2,8 tons how much that is in the bucket when the backhoe is reaching out the maximum. How the boom cylinder is lined with the structure of the boom. I have to do some measuring later if larger cylinders would fit …

Fully RC Avant? That would be cool! On Avant demoday I got to try out the RC excavator attachment, way smoother contollable with thumb joysticks, and it also has rabbit/turtle speed selector, was buttery smooth. Costs like €11k+tax though -.-

I think he talked about RC controlled 260 backhoe.

Avant 650i is new, all the other stuff has been hoarded over many years.

It's ~185 hours used, asking price was €45k+VAT, as new this configuration would probably be €58k+VAT range just for the 760i, the 4-in-1 bucket is ~€2.8k+VAT.

The coldstart issue is with the Kubota V1505-E4B Stage V motor (4-cylinder, 19 kW, 2500 rpm max, 50 l/min hydraulic oil flow), allegedly it has different camshaft compared to the older Kubota V1505 Stage 3A (4-cylinder, 28 kW, 3200 rpm max, 66 l/min) that didn't have much coldstart issues. Current Avant 635i/640i models have Kohler KSD 1403NA (3-cylinder, 19 kW, 3000 rpm max, 66 l/min) motor, I'm not sure if this one has any coldstart issues. There's also Avant 645i/650i with Kubota V1505 CR-T (turbo, 4-cylinder, 33 kW, 3200 rpm max, 75 l/min) motor - but compared to the older ones it's said to have only air intake grid heater, no glow plugs. With the 635/640 19 kW Kubota, if you can run block heater for ~15 min and have hot air intake then the startup isn't a big issue. www.avanttecno.com/global/machines/600-series

Yes, with a 1400 W hot air blower.

Kui juba käima saab, siis toimib muretult. Soojalt restart ka poolest pöördest. Nüüdseks plokisoendus ka lisatud, ~15 min eelsoendust ja läheb ühe/kahe eelsüüteküünlatsükliga. Kuuma õhu sissepuhkega veel paremini muidugi.

Kas jätad oma kontakti ka et saaks käivitust arutada voi helistad ise?

Yes, dangerously slow acceleration and moderately slower breaking (the trailer has intertial brakes), other than that no issues as it was nicely balanced and I didn't go over 70 km/h.

Try doing it faster with a shovel and a pickaxe ;]

True that =)

The MT8 takes ~1 litre of diesel per hour, and it takes about an hour to make a 1 m3 (~250 kg) of woodchips by myself or only ~30 minutes with helper.

@@Tarqwak okey i am sorry just seemed to me like it wasnt that fast 👍

@@Tarqwak its a nice tractor how many horsepower? Do you know?

It has 24 kW Lombardini LDW 1503 three cylinder naturally aspirated diesel engine, so about 32 HP.

@@Tarqwak seems like the perfect tractor around the farm or homestead 👍

its no Avant trailer its a LT300Timber trailer no official Avant Brand

@@john23215 AVANT made one, about 10 years ago. It actually ties into the AVANT Hydraulics, has controls from the cab, and is pulled from the back. Thanks though

This is a Chinese made timber trailer, ~2016 model year. In theory 3 ton cargo capacity and the crane should be able to lift ~300 kg at max distance of ~3.9 meters. I've added the ISO quick couplers to use it from Avant auxilary hydraulics but this time I forgot to bring the hoses and had to use the onboard pump with gasoline engine.

@@Tarqwak Thank you!

Not great, not terrible, needs some TLC. Should run though, I'll try to do a will it start video.

@@Tarqwak do the video please, I subscribed to see more of this ;)

Will do, can't promise that it will happen quickly though.

Avant loader: avanttecno.com/en/

@@Tarqwak what size?

@@chrisdygon3777 This one is a 635 model, weighs ~1.5 tons, can lift up to ~1.1 tons, 19 kW diesel engine, hydraulic 4WD

@chrisdygon3777 That is what my sister-in-law said to me last night.

Yup, left them way too high and then it was an ordeal to get them out when the Avant was on.

The 55 kW diesel Berlingo van pulled it fine 70+ km/h, could have gone 90 but I was keeping it slow and steady, the load was well centered on the trailer and it did no jackknifing attempts. The trailer did ok, the hubs got a bit hot but that could be because the intertial brakes are not adjusted for the weight properly, other than that, no problems, nothing got bent. Well... except the sketchy wood ramps, those got proper knackered.

@@Tarqwak What's weight you are looking at? The Avant is about 1500 kg with fuel and extras. It is at least 1400kg. The trailer is rated at just 1500 kg. It is never good to go to the max. The Berlingo is rated at 1200 kg max if you have the right model (as far as I know). I know you can pull heavier load but it is never clever to do so. Plus you might invalidate your insurance. I would never use a single axle trailer either. That ramp system is just so dangerous. The Avant has no suspension and can go over very easily. I know because I had had a few and ended up almost on my side.

Going by the book the trailer is rated for 1181 kg load, 319 kg empty, so 1500 kg total. But the axle on it is rated 1800 kg, and I've had ~1750 kg on it few times before, so yeah it can handle it, not very legitimately thought, shshhh. The 635 should be in 1530-1600 kg range in this configuration, but I'll try weighing it one day. Planning to get dual axle trailer, Eduard Multitransporter 3518-4-PO3-3056 probably, 3.56x1.80m flatbed, 620 kg empty, 2380 kg load, onboard ramps, 195/55R10 tyres, 30 cm removable sideboards, shock absorbers, drive on supports and extra floor supports.

It's made in Finland - avanttecno.com/en/

No, it wasn't. I'll try it next time, but still the digger has probably more pull than the blade/outriggers/tyres have traction, depends on the soil too perhaps.

~9.4 l/100km ökoliigeldes ;)

🛸 👽

600 series is ~214 cm from front tyre center to rear bumper and ~43 cm from front tyre center to attachment plate, so if my math is correct then each kg attached to rear bumper should increase the breakout force by ~1.71 kg. In your case the 270 kg weight (2x 80 kg side and 3x 30 kg rear I presume) should give around 462 kg more breakout force. I'm planning to weld up a ~120 kg rear bumper with a tow hitch and add some side weights.

Yup, those older engines seem to do alot better with coldstart. I've now tried it with a little shot of ether starting fluid and it started way better, still sputtering for a few seconds though.

Yup, those middle paddles need a stiffening gussets welded on the back, those got bent quite severly when the brick/stones went through. As there's no model number plate on the blower and I can't find any similar one on the Internet, I suspect it might be a one-off protype blower, so maybe version 1.0 and lacking those reallife needed improvements.