Progress Rail Locomotive Inc.

Brett James Janson

Pengfei Ma

Tonglin Shang

Sean Wesley Johnson

Systems and method for operating a hydraulic swing system are described herein. The hydraulic swing system may include a first hydraulic pump and a second hydraulic pump in fluid communication with one another. A first hydraulic motor configured to drive rotation of the hydraulic swing system and may be in fluid communication with the first hydraulic pump and the second hydraulic pump. A controller configured to increase a rate of rotation of the hydraulic swing system in a first direction by: engaging the first hydraulic pump to provide a hydraulic fluid through the first hydraulic path to the first hydraulic motor to drive rotation of the hydraulic swing system; and engaging the second hydraulic pump to provide hydraulic fluid through the first hydraulic path to the first hydraulic motor to drive rotation of the hydraulic swing system.

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Hanna City, IL, United States of America

Brett James Janson