THEORY OF OPERATION - CONTINUED
HYDRAULIC SYSTEM - CONTINUED
Steering Cylinders. These are mounted at the front axle. The two steering cylinders turn the front wheels. They
are powered by the hydraulic system and controlled by the steering wheel pump and steering wheel.
Wheel Lean Cylinder. This cylinder is mounted at the front axle on the right side. It is powered by hydraulic sys-
tem and controlled by a lever in the cab. The wheel lean cylinder sets front wheels at angle to counteract blade
pressure exerted sideways against the front wheels when grading or moving heavy material. Also, sets front wheel
angle to prevent the front of the machine from slipping sideways and downward when the machine is moving
across a slope. Refer to TM 5-3805-261-10 for further description of operation.
Circle Drive Motor Assembly and Lines. Refer to Blade System in this work package.
Hydraulic Swivel. Hydraulic swivel is mounted at the center of the circle assembly. The swivel allows hydraulic
pressure to be transmitted to blade tip and sideshift cylinders during 360 degrees of blade circle rotation.
Blade Control Cylinders and Lines. Refer to Blade System in this work package.
Scarifier Control Cylinders and Lines. Refer to Scarifier Assembly in this work package.
Articulation System. Refer to Frame, Towing Attachments, Drawbars, and Articulation System in this work pack-