29. INTRODUCTIONS OF ATTACHMENTS 29.5 HANDLING TRAPEZOIDAL BUCKET This bucket is used to dig trapezoidal ditches on paddy fields, farmland ect. and can dig 3 types of ditch gradients ( 45 o , 40 o and 38 o ) when a movable plate is attached. The mounting position of the movable plate varies depending on whether the ditch gradient is 45 o , 40 o or 38 o . How to perform excavation Operate the boom, the arm and the bucket to make the line A of the side-plate of the bucket vertical. The guide plate B to check this position is installed beside the bucket pins. Accordingly, hold this plate horizontal when digging.
40° ditch hole 38° ditch hole 38°, 40° ditch hole Ditch gradient of 45 o Attached the bucket only or the movable plate by selecting the related ditch holes. Perform digging by the above method. Ditch gradient of 40 o or 38 o Attached the bucket only or the movable plate by selecting the related ditch holes. Perform digging by the above method. Even if the trapezoidal bucket is provided with the movable plate, always perform digging with the bucket side face perpendicular to the ground. PC450-ENG 5-17 45°, 40°, 38° ditch hole 45° di