A draper platform (100) has a center endless belt conveyor (118) that is supported on and between first and second adjacent support arms (246A, 246B). The center endless belt conveyor (118) is releasable from a first support arm (246A) of the two adjacent support arms to pivot downward away from the first support arm of the two adjacent support arms a distance sufficient to slidably remove an endless conveyor belt (134) from the center endless belt conveyor in a direction parallel to the axes of rotation of the rolls (300, 302) that support the endless conveyor belt.