Harvesting machine belt pickup header with movable pickup belt assembly

A header for an agricultural work vehicle that includes a feeder house, the header operable to move crop material in a forward feed direction during a crop processing operation and in a reverse feed direction during a declogging operation, the header comprising:

• a frame configured to be coupled to the feeder house;
• a pickup belt assembly coupled to the frame and including a drive roller and a driven roller about which rotates a pickup belt configured to convey crop material;
• a transfer belt assembly coupled to the frame and including a movable transfer belt arranged to convey crop material from the pickup belt assembly to the feeder house in the forward feed direction;
• an actuator coupled to the frame that pivots the pickup belt assembly relative to the frame about a pivot axis between a first position and a second position to alter an orientation of the pickup belt assembly relative to the transfer belt assembly, wherein the pivot axis is co-axially aligned with a rotation axis of the drive roller or the driven roller;
• and
• a discharge zone through which crop material is conveyed in the reverse feed direction during the declogging operation.