How can I fix my belling slot in cooker model 648HM top oven door?

Most belling top oven doors can be refitted by holding the door with hands at each side of the door near hinges in door open position then depress both top arms of hinges against their spring pressure with thumbs then insert both top arms in oven at same time inserting both lower arms and locating them correctly (they have little cut outs to sit on the bar to locate)

Kenjo
March 2012