Tractor Mac "Teamwork" by Billy Steers

All the vehicles and animals on Stonybrook Farm are enlisted to help build a new swimming hole for their town's residents. It is a big job, but Tractor Mac and his pals are willing to lend a hand. But a tractor named Deke thinks he can do it all by himself--and do it better than everyone else. He soon learns that a complex job is done best when each member of a team does his or her part.