I've hear about this Chinese balers they break the shear bolts on every lump of hay, and the main chain is skipping a roller at that time. That the left and the right side are not properly aligned ending in the bearings of the rollers to desintegrate, not before causing the hay guard to interfere with the pickup that leads to the destruction the teeths, and the chain gears to misalign causing the chain to jump off. Some other minor issues... that the twine is not pulled in at the start of the wrap, that can be really a problem even with the natural fiber twine sample they are delivered. Also that hidraulic pump is failing to function in the heat, the twine roller get smooth pretty fast and the tread is sliding on it. That the worm mechanism that drives the twine arm fails unexpectedly, and even that the main gear goes bust quite easily, not the mention the chains that are wearing out fast.
