Which Of The Three Methods Is The Most Scientific Of Parking Excavators?

A.

The arm is positioned perpendicular to the ground at 90 degrees, and the back of the bucket is flush against the ground. Each cylinder is in a state of no pressure, and there is no damage to the cylinder’s oil seal. However, this positioning can cause the bucket cylinder to extend. Therefore, in practical operation, to prevent accidents, many individuals retract the bucket cylinder and allow the bucket to rest on the ground.

B.

When parked in this manner, the oil seal of the cylinder is under stress and the cylinder is exposed, so it is rarely seen on job sites. However, this is the most common parking method during excavator transportation. This type of parking minimizes the height and length of the excavator, making it more convenient for loading onto a flatbed truck without being excessively tall or long.

C.

When parked in this mode, all the oil cylinders are in a retracted state, which helps to protect the oil cylinders and also makes it convenient to check the hydraulic oil before starting work the next day.

Which of the three methods is the most scientific of parking excavators?