From Animal Farm chapter 3, what difficulties did the animals have in gathering in the harvest and how did they overcome these difficulties?

The tools are not well suited for animals to use, especially without the animals rearing up on their hind legs. The pigs supervise the others but do not participate in the manual labor.

Sometimes the work was hard; the implements had been designed for human
beings and not for animals, and it was a great drawback that no animal was
able to use any tool that involved standing on his hind legs. But the pigs
were so clever that they could think of a way round every difficulty. ch 3