1254100 Agricultural Spare Parts Flange Yoke for Square Baler

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Product Description

Characteristic

If you're wondering how to replace your yokes, this article will help you figure out where you should start. First, check the
knotter drive assembly. You'll need to check the timing and brake adjustment. Then, look at the mounting bracket. If both parts are worn, it's time to replace the mounting yokes. These are the most common replacement parts for a Welger Square Baler.
Knotter drive assembly
A Welger Square Baler features a Knotter drive assembly, which is composed of a drive shaft 12 and a one-way clutch. A drive member 70 connects the knotter drive shaft to a powered device. A storage device (60) stores energy and can be used to bring the powered device back to its starting position. The drive shaft is mounted to the frame of the baler.
A drive coupling arrangement is used to pivot the needle yoke 40 in a timed relationship with the tying mechanisms. The drive coupling comprises a crank arm 52 fixed to each end of the knotter drive shaft 12. A connecting rod or drive link 54 has an upper end secured to the crank arm 52, and a lower end fixed to the coupling plate 50 of the adjacent needle yoke assembly arm 42.
Drive coupling arrangement
A drive coupling arrangement is crucial for the Welger Square Baler to maximize bale output. It reduces pressure in the bale chamber and protects the main drive gearbox. The Welger AP730 is classified as a high density small square baler. Its compact knotter system is a unique feature. It is available with a hydro-flex-control system, which increases space beneath the rotor.The drive coupling arrangement includes a flywheel mounted on the main power shaft. This shaft is coupled to the auxiliary function drive shaft and a power splitting transmission. The drive coupling arrangement includes a normally engaged coupling device located between the flywheel and the power splitting transmission. Once the main shaft is shut, the power splitting transmission will disconnect. This system is the most efficient way to disconnect power.
Checking for knotter brake adjustment
A small square baler can suffer from the common problem of knotter problems. Generally, this problem occurs while a crop is in the field. It is often indicative of poor twine or decreased baling tension. In such cases, it is necessary to loosen the spring bolt holding the twine holder and turn it to a proper position. If this problem persists, it is necessary to change the hay wedges.You can manually engage the PTO or manually activate it. Make sure the PTO is above 600 rpm. Once the PTO has been activated, the knotter cycle will start automatically. If the knotter does not trip after the first trip, it may have failed to engage the safety stop. In such a case, you will notice an error message.
Checking for knotter timing
In some cases, the yoke flange can be damaged, and the plunger needles can break. To check if the plunger needles are broken, remove the flange from the baler and look for a bent yoke flange. Broken needles can be caused by sticks or materials packed into the slots. Broken needles can also be caused by impact to the bottom of the knotter stack. Broken plunger needles are often caused by the shear bolt, which can break the needles while in the stack. In such cases, you can install a plunger stop on the yoke flange, so that the needles do not break in mid-process.
Once the yoke flange is adjusted, the knotter has several components. The bill hook is the first component, which opens and closes to catch the twines. The bill hook then twists the twine into the knot. It should be pulled out after the knot, and the needle safety latch may be frozen. Then, there are the twine disks, which turn by a quarter-turn with every knot. The knotter needle holder should be centered and the bill hook should not move backwards.
Dimensions of yoke assembly 40
A Welger Square Baler has a yoke assembly 40 with twine-handling needles that pivot vertically in the case. The needles protrude through slots in the bale case at the end opposite the pins that are located at the lower end of the bale case. A twine support bar 46 extends between the arms and is pivotably attached to the coupling plate 50 of the adjacent needle yoke assembly arm 42.In one embodiment of the invention, the twine is guided in the manner shown in FIGS. 6 and 7. A double-knotter draws the twine through a tensioner to guide it into the bale chamber. The operative position of the needles can be seen in FIG. 8. Using a double-knotter eliminates the need to adjust tensioners.

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