Rotary cultivators are essential agricultural tools designed to till, break up, and aerate the soil using a rotating knife roller powered by a tractor. These machines not only cut through vegetation but also mix it into the top layer of soil, making them ideal for incorporating organic matter, fertilizers, or pesticides. After operation, the soil is finely broken down, the surface becomes smooth, and the number of required steps is significantly reduced. This efficiency has made rotary cultivators a popular choice among farmers. In this article, we will cover important tips on how to use and maintain your rotary cultivator, aiming to assist operators in maximizing performance and longevity.
Before using a rotary cultivator, proper installation is crucial. For models that attach via a three-point linkage system with a wheeled tractor, start by disengaging the power take-off (PTO) shaft. Remove the PTO cover and ensure the machine is positioned correctly when reversing. Attach the rotavator to the tractor’s drive shaft using a universal joint with a square sleeve. Manually rotate the cutter shaft to check for smooth movement, then carefully insert the universal joint into the tractor’s PTO shaft and secure it in place. It's important to align the fork joints of the square shaft and sleeve in the same plane. If misaligned, you may hear unusual noises, experience increased vibration, or risk mechanical damage. Once properly connected, insert the safety bolt into the groove on the spline shaft and secure it with a split pin for added safety.
For rotary cultivators paired with a tracked tractor, tilt the tractor forward and remove the drawbar. Mount the rotary tiller onto the gearbox using five stud bolts. Ensure that the two alignment pins on the coupling faces are properly engaged to guarantee correct gear meshing. Avoid forcing gears into place if they don’t fit smoothly—instead, rotate the pulley to adjust the internal gears at an angle. The paper gasket between the gearbox and the tiller should be approximately 0.45 to 0.55 mm thick. A gasket that is too thick or too thin can disrupt the gear clearance, leading to premature wear. When removing the machine, always cover the gearbox opening with a protective shield to prevent dirt or debris from entering the housing.
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