The rack does not come with dumbbells, you have to buy them on your own, sorry!
While is it possible to repair/rebuild a rack, BUT the special tools need to disassemble are expensive. You are better off just to buy a rebuilt unit from an auto parts store. Rob
Bake lamb or pork chops on top of a rack with a dripping pan under it. the fats and oils will drip into the pan making the chops fat free and healthier.
As long as your pot/pan rack securely stores your cookware, there shouldn't be any issue. The higher up your cookware sits on it, the better, as the children are less likely to knock things off. Your safest option would be a hanging rack, where children cannot reach the rack or your cookware.
Throw the rack out and buy and new one!
Convection.
Some alternative methods for roasting without using a roasting pan or rack include using a baking sheet with a wire cooling rack placed on top, using a cast iron skillet or Dutch oven, or even wrapping the food in foil and roasting it directly on the oven rack.
To roast a turkey in the oven using a turkey pan with a rack, preheat the oven to the recommended temperature, season the turkey with herbs and spices, place it on the rack breast side up, and roast until the internal temperature reaches 165F. Baste the turkey occasionally with pan drippings for added flavor and moisture.
Here are some different 2U rack mounts you can buy: http://www.rackmountmart.com/html/2UTable.htm .
You can purchase a roof rack tent at your local sears store.
You can buy a 4u rack mount online at superlogics.com, mypccase.com, or rackmountmart.com. You can also get them at any major computer store.
A pan underneath always helps, just incase the mixture overflows and drips into the oven.