Officials of the provincial Party committee, the provincial rural economy committee and city and county cooperative farm management committees learned about the operation of farm machines and the securement of farm implements on the spots and have settled knotty problems arising in their overhaul and maintenance, arousing the working masses' creativity.

Co-op farms around Hamhung City finished the overhaul of one hundred and dozens of tractors, trailers and wheat and barley planters.

Various city and county farm machine stations and mechanized workteams of co-op farms, too, have proceeded with overhaul and maintenance of farm machines as planned and secured many simple and efficient farm implements.