Frame, Towing Attachments, Drawbars and Articulation System.

TM-5-3805-261-20 Grader Heavy Road Motorized (Caterpillar Model 130 G) Manual
Page Navigation
18

TM 5-3805-261-20 PRINCIPLES OF OPERATION. (cont) 1-13. 130G GRADER. (cont) h. Front Axle Assembly. A trunnion mounted solid front axle swings a maximum of 32 degrees and provides 24 inches of ground clearance. i. Rear Axle Differential and Lock Differential. A four-wheeled tandem rear axle arrangement houses axle shafts driven by a lock-unlock equipped differential. The axle shafts turn the final drive sprocket chains through planetary reduction gears. The sprocket chains then drive the sprocket spindles and wheels. j. Air Brake System. The rear four-wheel brakes are air actuated and of multiple oil disc design. They are housed within the wheel spindle housings. A pedal operated valve at the cab controls the braking air pressure. An engine driven, two cylinder air compressor supplies a two section air reservoir to provide braking pressure. The manually actuated multiple oil disc parking/emergency brake located in the transmission case is spring engaged and air disengaged. A dual circuit air system arrangement maintains one half of the service braking power in the event of a brake system circuit malfunction. If service brakes are lost, the parking/emergency brake can be applied. k. Wheels and Tires. Rim and wheel assemblies are interchangeable. There are six tubeless 13-24 (8 PR) traction type tires. l. Steering. The engine driven main hydraulic system pump powers two hydraulic steering cylinders, controlling the front wheels. An electrical supplemental steering pump is automatically actuated and supplies power for steering in the event that the main pump fails. The articulated cylinders are driven by the main hydraulic pump. m. Frame, Towing Attachments, Drawbars and Articulation System. A frame and case at the rear section of the vehicle serves as a mounting for the engine, rear wheels and drive train. A front frame section serves as a mounting for the cab, earthmoving components and front wheels. The two sections are articulated (hinged) at the center of the vehicle. The angle of articulation is controlled by hydraulic cylinders driven by the main hydraulic pump. There is a tow pin at each end of the vehicle. n. Cab and Hood. A low profile ROPS (Rollover Protective Structure) and FOPS (Falling Object Protective Structure) cab protects operator from dust, sound and weather. It also houses the controls and instrumentation. An engine and radiator hood with side door assemblies provides sound suppression and weather protection. o. Bumper. One bumper equipped with a tow pin is located at the rear of the vehicle. 1-20

Privacy Statement
Press Release
Contact