What is a three -point post?
The
three -point blade is a trench attachment that can be installed on the tractor unit and operate directly from the driver's position. The term is also used to describe the arm on board, which is equipped with bagers, such as the 3CX model produced by Joseph Cyril Bamford Equipment Ltd (JCB) in the UK (Great Britain). The main difference between the three -point storage and standard excavation is another point point located directly at the point where the arm is connected to the machine. This third hinge allows hydraulically to be folded and locked on site directly behind the driver, allowing the tractor or wheel excavator to be used in a traditional way. Under the SAE and ISO control systems, the back is fully operated with two levers, once for each hand of the operator. Each control lever operates two functions, one in the direction forward and the other in the left direction to the right.
6 couples, in order from left hand to right side operateOra, control the vertical rotation of the bucket, move the arm of the vertical ladle and move the arm of the vertical boom. Other levers, usually placed on both sides of the main control panel, lift and reduce your legs to the left and right stabilizer. In addition, there are two pedals that control the horizontal swing of the shoulder of the shop windows, while the left pedal controls the left swing and moves the right pedal with the boom arm in the opposite direction.by lifting the Boomu shoulder arm to pull the dipper to the point closest to the operator, the hit can be placed in a locked position for travel. This is achieved by connecting the boom latch lever from the operating position. While this safety function allows you to move the tractor with attachment that is still attached to the machine, it is not particularly safe for road travel. For this reason, the three -point attachments for tractors for tractors are removable and also provide the possibility to change attachments.
on a wheeled excavator where the three -point barkhana is permanently solid can be the armAchu also moved along the track mounted on the back of the machine. This track not only allows the shoulder blade to dig an offset excavation, but also on a lean arm to be stored more securely. For example, by moving to the shoulder blade to the extreme right position of the machine, the arm of the boom can be fully rotated to the left and locked on the spot, which re -attack in the parallel position of the rear.