why did ward make beaver and his friends workinthe yard four makeing that call was that their punisment orwas that how they paidward back fourthe call?

It was both. They took something of value that Ward must pay for, and with the other boys' parents in agreement that they owe him and should learn a lesson from what they did, that was Ward's choice of how they will pay him back. It was more punishment than true compensation, at least IMO.