What effect does using a JIB attachment have on a forklift's load capacity?

Using a JIB attachment on a forklift decreases the load capacity because it alters the distribution and center of gravity of the load being lifted. When a JIB extension is added, it effectively extends the reach of the forklift, which can introduce additional leverage when the load is lifted. This increased leverage can lead to a higher risk of tipping or instability.

Manufacturers provide load capacity charts for forklifts that specify the maximum weight they can safely lift at various heights and with different attachments. The charts take into account that attachments like a JIB can potentially reduce the effective lifting capacity as the farther away from the forklift's body the load is, the more unstable the forklift becomes. Therefore, operators must always consult these charts when using a JIB or any other attachment to ensure safe operation within the reduced load capacity guidelines.