This wooden guide is a wear component for the inclined conveyor on a harvesting machine. It directs the crop-carrying flight bars or slats along the conveyor track, maintaining proper alignment and tension between the chain and the conveyor housing. As the guide wears, the flight bars lose their tracking, leading to uneven crop flow, increased chain wear, and potential jams at the transfer point. The manufacturer machines this guide to match the original cross-section and mounting-hole pattern, so it seats correctly against the conveyor side rails without requiring shimming or field modification.