Suzanne K Chesterland , OH January 30, 2018 Appliance: Tappan Gas Range TGF657BFW2 Tappan Range Tgf657bfw2: Broken hinge on oven door. How to replace Range Oven Door Hinge Assembly. Not having the proper tools, I hired a professional to install the new part and it took less than 10 minutes to finish. Done! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes