What supplies hydraulic flow for the boom's left/right swing?

The supply of hydraulic flow for the boom's left/right swing is facilitated by the 31-gpm side. This hydraulic flow is necessary to generate the power required for the boom's swing mechanism, allowing for smooth and efficient operation when changing the boom's direction.

The 31-gpm side is designed to provide a greater volume of hydraulic fluid, which is crucial for heavy lifting and precise movement. This is particularly important in crane operations, where the load being lifted can significantly affect the power and speed required for movement. A higher flow rate ensures that the hydraulic system can respond quickly and can handle larger loads without lagging or stalling.

In contrast, while the 15-gpm side and other components like the reservoir and collector ring assembly have their roles in the hydraulic system, they do not directly supply the necessary hydraulic flow for the boom's left/right swing. The reservoir stores hydraulic fluid and the collector ring assembly facilitates the electrical and hydraulic connections necessary for operational efficiency, but they do not serve the same purpose as the flow from the 31-gpm side.