Some useful tips by our farmers
Netwrap
Technical information
Best way to prevent damage and improve rotation
When a bale stays trapped in the chamber instead of being ejected, it can harm new bales at the beginning of the season by causing damage to the net via the rollers. Also, rusty or paint-covered surfaces on the new sides can prevent the bale from rotating smoothly for the initial few bales. We recommend disengaging the PTO (Power Take-Off) before ejecting the bale until the side walls have been polished or smoothened. That way you can roll on smoothly into a trouble-free season!
Technical information
Twine
Dealing with twine snags
When you’re linking the spools in a twine box, it takes a lot of time. So, it’s better to do it correctly to prevent issues! Connecting the spools creates a flatter knot that can smoothly go through the twine guides and tensioners.
Technical information
Twine
Uneven twine at the start of a spool
Sometimes, the first 10-20 meters of twine from a spool may look uneven and kinked. This is normal and happens because of how the twine is made and wound onto the spool before packaging. When you pull the twine tight, it straightens out. As the twine moves towards the knotting part, it goes through tensioning with spring clamps in the twine box and twine brakes just before the knotter. These brakes need to be set at a specific tension. When done right, the twisted twine won’t cause any issues!
Technical information
Twine
Twine looks like a bird's nest
Take care with your spools before use, they are fragile. In order for the twine to run smoothly from the start to the very end, the spools must not be damaged or ‘shocked’ (dropped or crushed), as this will disrupt the careful winding pattern inside and cause the spool to fall apart internally.
Netwrap
Technical information
Twine is twisted into a knot
When pulling twine from the spool, make sure to pull it from only one end-the right end! You can tell it’s the right end if it unwinds in a counter-clockwise direction from the inside surface. If you pull from the wrong end, you’ll end up with a big knot in the twine, causing problems in the knotter very quickly!
Netwrap
Technical information
Understanding simple problems
New bales, at the start of the season can be damaged if bale holds-up in the chamber when it should be ejected. The rollers damage the net.
Rusty or paint on new baler sides will slow the bale from turning for the first number of bales.
Solution ….. Dis-engage PTO before ejecting the bale, until side walls are shined up.
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Check out our product facts!
Ensure the center of the spool is round and not squashed. If the center is not open and even, it can lead to the twine getting stuck and not flowing freely from the spool.
Make sure your twine spools are the right size so that they fit nicely in the storage box on the baler. If the spool is too big and you have to force it in, it might get crushed and mess up the winding inside, causing issues later on.
Also, check that the spool isn’t too tall. It should easily fit below the twine guides in the top of the twine box on the baler. If there’s not enough space above the spool, the twine might not pull freely. So, make sure everything fits comfortably!
The spool MUST be used the correct way up, so that the twine pulls from the spool in a Counter-Clockwise direction.
If the twine is pulled from the wrong end of the spool, it will increase the twist, creating loops that can become trapped on the internal parts of the baler.
In extreme conditions, over-twisting will eventually cause the twine to knot on itself.
It is important that the bale shape is uniform, and flat across its surface. Uneven shaped bales will cause the Twine to be under greater pressure.
The Reef Knot, also known as the Square Knot, is fast and simple to tie. It makes a strong connection with a flat shape, so it moves smoothly through the twine guides.
WARNING!
On Double-knotter balers, it is important NOT to join different types/thicknesses of twine on the same knotter.
Ensure that the upper and lower twines are of the same type and diameter, to avoid any risk of knotting problems caused by twine slipping and knots opening.
Ensure the spools are correctly connected and routed through the baler to the knotter.
Check that the twine spools are connected in the correct order, as per the baler manufacturer’s recommendation.
To ensure tying a good and secure knot, it is crucial to have the right tension in the twine, and make sure all the tension devices are set up correctly for this to happen.
Ensure the twine tension plates are adjusted correctly, as per the operator manual.
Adjust the twine tensioners at the twine box with slight tension to prevent twine free falling.
Ensure twine tension plates are kept clean and free from crop debris, which if allowed to build up between the plates, can reduce the twine tension.
Pull the twine (3) from inside the chamber, with a spring-balance.
Adjust the springs (1) on the tension rollers (2) to give a pull-tension of 6 – 8kg.
Regularly inspect the twine guide rings under the baler, between the twine boxes and the needles.
If you find any guides that are worn or damaged, they can harm the twine by breaking its fibers and making it less strong. Keep an eye out for this!
Ensure that the knotters are free from dust and crop residue, which can interfere with the knotting process.
Ensure that the needle wheels are free turning and are correctly aligned with the bill-hook, and that the twine is not outside the needle wheels.
In every Tama Twine spool, we take out 15 meters of twine to reduce the impact of twisted twine when you start using a new spool. When the twine is rightly tightened in the baler, any wrinkles in the twine will smooth out and work fine in the knotter.
When it comes to large-square balers, there are two types of knots made, depending on the original equipment manufacturer (OEM) of the baler. These knots are quite different and can affect the overall strength of the twine after the bale is made.
Cormick knot (or ‘Loop’ knot):
- Found in all Claas Quadrant and Welger large square balers
- Identified by the Cormick knot
Deering knot:
- Used in all other makes of balers, whether they are Single or Double-knot
- Known for creating a standard knot
The “tensile” strength of twine is the force, measured in Kilogram Force (Kgf), needed to break a single, unknotted length of twine.
When a knot is tied in the twine, the overall strength of the twine piece is reduced. This reduction depends on the type of knot that is made.
Because Cormick and Deering knots are different, the overall strength at the knot is different:
- Cormick knot keeps 75% of the twine’s original strength
- Deering knot retains only 55% of the twine’s original strength
Many times, twine issues with a bale happen when the knot opens after the bale comes out of the baler, not because the twine itself breaks. This happens because some twine producers using ‘old technology’ make twine thicker per meter. Thicker twine struggles to create a secure knot with long tails, increasing the chances of the knot opening once the bale is ejected from the baler.
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