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the (612), and (203), this (72), that (60), with (58), for (48), are (48), post (47), fruit (43), but (40), speed (39), around (32), can (31), shaker (30), juice (29), all (28), more (28), settings (28), frequency (28), then (26), not (25), amplitude (25), you (25), much (25), from (24), parameters (22), when (22), increase (22), belt (22), pellenc (21), have (20), ground (20), will (20), posts (19), arms (19), season (19), after (19), their (18), shaking (18), setting (17), time (17), which (17), set (17), mog (17), was (17), out (17), has (16), harvester (16), driver (16), active (16), sorting (16), there (15), acceleration (15), too (15), than (15), high (15), off (15), get (14), other (14), smart (14), would (14), should (14), being (14), one (14), leaf (14), through (14), machine (13), where (13), some (13), between (13), top (13), fans (13), harvest (12), first (12), harvesting (12), into (12), picking (12), what (12), just (12), little (11), down (11), over (11), vineyard (11), 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e telltale sign of the fans set too low and the mini shakers pack leaf and juice together in a pancake one can also take a ride on the harvester to view the discharge tray and note the quantity of trash collecting and running across the rollers remember ground speed is practically related to everything that could be wrong the leaf sorting belt speed is proportional to the main drag belt speed which is determined by ground speed if you think something is wrong first thing is to slow down which makes the whole process more manageable other features include a magnetised discharge tray the winemaker should demand this is present as this removes all metal manner from entering the bins nails staples and so on a bin level indicator is available on some models and as an add on this too should be demanded by the vineyard owner to ensure driver forgetfulness does not allow fruit or juice to overflow the bin 1 comment filed under farming tagged as pellenc blackcurrants grapes harvest wine april 22 2013 4 23 pm the smart controller more on parameters there are a couple of other parameters that i haven t mentioned previously that being proportional shaking which doesn t need any further explanation and the active distance active distance is the zone for which the post shaking parameters take effect in other words if this is set to 50 then the post parameters will only be active over half of the shaking zone the length of the shaking bars set at 150 and this activates them for one and a half times the zone essentially if your post parameters are higher acceleration and frequency then the active distance should be greater than 100 if they are lower then the active distance should be equal to or less than 100 the argument i make here also refers to the post parameter discussion in the last post is that if the choice is to make every effort to remove fruit around the post then maintaining those higher settings just after the post will ensure a better harvest in that dead zone if this is not the goal ie post protection is paramount then it doesn t matter and the setting can be 100 or lower the smart system parameters can vary much between crops whilst late season amplitude settings of 65 80 can allow frequencies up to 540 cycles min being late season would not need frequencies this high i have harvested 5 hectares of pinot noir of which 3 hectares were stressed vines this allowed parameter settings of 25 80 00 485 pinch amplitude acceleration frequency at a speed between 5 0km hr and 5 7km hr the suggestion that i could lower the settings further due to being able to stretch the speed to 5 7km hr is negated by the fact that these were 50 75 metre rows with only 6 metre headlands at the same time the remaining 2 hectares were quite dissimilar with a very active canopy consequently the parameters required were 25 95 10 510 at 4 8km hr with some of the small berries and raisins still remaining speed is very relevant once after taking over the machine from a dry hire job i felt the picking arms being a little more loose by an increase in the shaking effect which you can feel in the small of your back i look to my right to find the smart parameters are 15 105 15 540 what speed this was being undertaken at i do not know but this highlights the actions of a rather ignorant driver he was obviously thinking that as all the fruit was being removed he therefore was doing the right thing it just so happens to be someone who did not turn up for driver training arranged prior to the season with a little adjustment i managed to lower the amplitude from 105 to 95 and lower the frequency from 540 to 495 and completely cut out acceleration altogether even though i was doing 5 5kph the season of 2012 2013 we have instigated a policy for ourselves of reducing the post amplitude by 15 20 no matter what the thinking having a post momentarily between the picking arms physically reduces the amplitude trying to maintain or increase the amplitude achieves little we are experiencing no significant harmful effect other than a little more fruit remaining around the post this is countered by keeping our speed to a maximum of 5 0 5 7km hr most vineyard operators agree that to hand pick around the posts doesn t net much advantage so this doesn t seem like too much of an issue the short period we ran with an increased amplitude of 95 100 around posts gained little in extra fruit but did result in a significant increase in post breakages it is difficult to maintain these settings even when the pinch is increased as the post sensor quickly recognises a post and increases the settings sharply at the same time when travelling in a forward motion in this case posts tend to be broken and pushed forward in the row again i have had three opportunities this season to ask an observer winemaker or vineyard owner or their assistant to visually compare the binned sample after i have taken over part way through a particular job the first and immediate change i make is to lower the fan pressures dropping them from the common setting range of 100 140 bar down to 75 85 bar top and 90 100 bottom results in a significant increase in the collectible grape juice something many miss out on with the presence of petioles the tendency is for the driver to increase this setting to remove them but more often than not grape juice is removed just as easily whilst it is a little more difficult to get the balance between fan pressure and petioles remaining particularly for pinot in the sample one very good indicator is simply that fact that when harvesting mid season onward there should be a considerable amount of juice running out from below the leaf sorting belt as it drops down and onto the discharge tray whilst this would normally indicate high amplitude settings this is common with soft fruit skins but this area is well exposed and can be seen clearly by both driver and observer on the ground petioles are better handled by an increased speed in the sorting tables the continual adjusting of speed fan pressure and table speed throughout any particular harvesting job has taken me 3 4 years experience to become comfortable to do so it requires the uncomfortable seating position of frequently peering behind you in cab frequent checking the finishing department for potential jams and frequent speed vs shaker parameter setting changes to understand their relationship and looking for their sweet spot it takes time and a focus on the deliverable benefit to who benefits the vineyard owner or the winemaker it is the responsible operator that understands who he is working for somebody who sometimes doesn t understand every detail but nonetheless that is who the operator should be looking out for the finishing departmen t is the destemmer and the final chapter ion the processes of this machine 1 comment filed under farming tagged as pellenc blackcurrants grapes harvest wine march 31 2013 11 40 pm the smart controller the smart system is the patented term given to the control of the shaker rod arms of the shaking active head the head is active in the sense that it moves sideways independently to the tractor unit mav to compensate for the position of the vine and superstructure how the smart system achieves this is quite complex and yet the four main parameters that control the shaker arms are set individually by the driver simply altering each one as he or she seems fit and this is where things can get out of step having a logical and engineering mindset helps a driver to match their input requests to the controller with what he or she is attempting to do good practice requires starting ground speed of 4 0 4 5km hr this is particularly important at the beginning of the season when it usually takes a couple of days for drivers to get into the swing and re acquaint themselves with the vibrations and noises of the harvester unit lets make a few assumptions here noting that they are based on my experience in the waipara valley in canterbury the awatere valley in marlborough and the bannockburn bendigo lowburn alexandra clyde regions of central otago and around yea yarra glen and alexandra in the yarra valley melbourne red varieties can be on vines with smaller canopies sometimes picked when the canopy is starting to shut down or as in some instances non existent hence low mog levels otherwise petioles are always an issue pinot 114 115 can be difficult whilst mv6 is much easier cabernet is also an easy pick but merlot can be challenging red varieties picked for sparkling base done early season are not only difficult to remove from the vine but difficult to not split the berries and shed juice this can be problematic as juice contact with skins needs to be minimised white varieties tend to be on vines with larger canopies are often the heavier of crops with quite weighty mog petioles are an issue with late harvests varieties picked for champagne are usually early picks resulting in slower ground speeds higher settings and decreased shaker arm centres i ve harvested sauvignon where the crop is so heavy that a maximum ground speed was 3 5km hr simply because the high quantity of fruit was over running the mechanical processes in another scenario a 350m scott henry trained row yielded over 2 tonne of fruit spilling over the sides of the bins i have also harvested pinot so late in the season there was no point in using the main or upper fans relying completely on the finishing department to remove the petioles pinch settings left show an arbitrary value but notice that as the season progresses the tendency is for this figure to reduce as the vines begin to drop their canopy the adverse effect then is an increase in mog amplitude shown is set to maximum or near to it at the beginning of the season and reduces much as the season progresses i have run this setting as low as 45 for late harvest varieties acceleration is of more use at the beginning of the season as it is usually more difficult at this time to remove fruit from the vine after this early period acceleration is generally not a requirement frequency or cycles is set to the upper band in the early season 500 525 and rapidly drops as the season progresses the bulk of the harvesting season should be able to be done around 480 to 495 cycles but it is not as simple as this what is most important is the relationship between amplitude and frequency whilst it is mechanically possible to set the machine to an amplitude of 120 20 longer than its standard 150mm stroke at that increased distance it would be excessive to have the frequency around 500 or higher high cycling the machine picking arms over a long distance would be akin to driving to work in first gear but at high revs so as to get there the relationship should be low amplitude high frequency and vice versa the relationship between frequency and acceleration is important too for a given set of cycles when you accelerate any part of that cycle another part of that cycle has to slow down or pause for example if you add acceleration to the cycle because the shaker arms are still cycling at the same measure per minute then between each stroke there is a pause this is why acceleration is sometimes called punch combine an increase in acceleration with a pinch setting that is too wide the shaker arms will slap or punch the vines to oblivion the more vigorous the canopy agitation then more mog is present which has to be dealt with by the other processes consequently all settings work together to give the finished sample at times particularly late harvest one can t avoid removing the remaining canopy from the vines this increases the role of the fans and the finishing department and the operator needs to constantly watch all areas and make continual changes to make sure a good sample is provided speed is directly proportional to the frequency the chart below shows this at a speed of 4km hr the harvesting unit is travelling along the vine at 1 11 metres per second if the frequency is set at 490 beats per minute then for every metre of travel the vines are shaken 7 4 times at the same number of cycles doubling the speed halves the frequency for every metre of vine an experienced operator will begin harvesting at 4 0 4 5km hr as the machine warms as the oils come up to temperature as the shaker arms settle into their natural harmonic rhythm so its effectiveness in picking fruit increases this results in the need to reduce certain settings particularly amplitude and frequency alternatively it also allows a corresponding increase in ground speed an increase in ground speed with no change in frequency correlates to a significant decrease in the cycles per metre cps m the decrease is shown as a percentage in the above table from the original starting speed where the interests of the winemaker vineyard owner are being looked after an operator will start at a low speed and work upwards towards 5 0 5 5km hr whilst at the same time reducing his shaker arm settings it is about matching the machine s settings with the environmental conditions an inexperienced or lazy operator will start at the speed he or she is comfortable at set relatively high shaker parameters and maintain this for the rest of the day thinking he or she is performing well based on the fruit being removed from the vines this is needless as making the machine work harder than necessary increases its wear and potentially damages vines and canes racing along at 6 8km hr can be fun but things go wrong much more quickly than is sometimes expected at this speed in heavy crops it will take only a few minutes to fill the bins and that is all it takes to collect a whole heap of petioles or other undesirables post settings are much simpler to understand when you understand how the shaker arms work but there are two schools of thought and the decision of which theory to use is left squarely in the hands of the winemaker vineyard owner without fully understanding the disadvantages of either of them the vineyard owner wants to make sure all the fruit is removed from around the posts this requires more vigorous parameters around the posts this can dramatically increase problems especially if the settings are not chosen correctly or are too severe that is the disadvantage the winemaker sometimes isn t too concerned whether the fruit is fully picked around posts winemakers typically only pay for the fruit by weight at the winery they may also understand that it is often difficult to remove all fruit around the post and may be happy that no attempt is made to do so even so why are you concerned about about the opinion of a winemaker he is after all at the bottom of the chain in france the harvesting parameters shown left top line are typically for a early season harvesting the second line shows a typical matching setting which correlate to the main harvesting parameters shown and reflects the winemaker s stance here the pinch increases to 90mm about the size of standard ...