707-03-X7170 CYLINDER GROUP，L.H

The lifting and tilting actions of the bulldozer shovel are usually controlled by a hydraulic cylinder group, and the left hydraulic cylinder group may be responsible for the left tilting or left lifting of the bulldozer shovel. When the tilt control lever is operated to the left tilt position, hydraulic oil enters the large or small chamber of the left tilt hydraulic cylinder, pushing the piston rod to expand and contract, achieving left tilt of the bulldozer, facilitating adjustment of the bulldozer angle and better operation. In terms of lifting, if the left lifting hydraulic cylinder moves, it can be combined with the right hydraulic cylinder to achieve smooth lifting of the bulldozer and complete the loading and pushing of soil.

The lifting and tilting of the soil loosening device also depend on the hydraulic cylinder group, of which the left hydraulic cylinder group is a part. When it is necessary to lower the soil loosening device into the soil, hydraulic oil enters the corresponding chamber of the left soil loosening device hydraulic cylinder, pushing the piston rod to extend, causing the soil loosening device to move downward and break the hard soil or rock; When it is necessary to lift the soil loosening device, the hydraulic oil changes direction and enters another chamber, causing the piston rod to retract and drive the soil loosening device to rise.