During operation, it is necessary to periodically check the tightness of the riveted joints of the frame by tapping the heads of the rivets with a hammer, to prevent cracks in the flanges of the side members and cross members
During operation, it is necessary to periodically check the tightness of the riveted joints of the frame by tapping the heads of the rivets with a hammer, to prevent cracks in the flanges of the side members and cross members