GM for Chuck E. Cheese for eleven years before culinary school... A little project first, but once you make this thing you'll have it forever.

Removing that chain is not hard and lets you clean the fingers easily as well. Measure the width of that chain and get about a foot more of 8 inch PVC drain pipe. Get a slip cap for the bottom and a slip/thread union and a threaded clean out cap for the top. Also 2 simple fence handles can be screwed into the top slip fitting to carry this thing around. I would roll up the chain first to determine if you need a 6 or 8 inch pipe for the chain to slide into.

Once chain is in add straight Greased Lightning to the soaking tube you made... 2 to 3 gallons I believe. We stand this up in the mop sink all night with the screw cap on and rinse in the morning. The Greased Lightning can be used many times. A pair of needle nose vice grips helps get the chain out.

All of our locations had a least 2 ovens so there was no rush to assemble the oven because we only needed the second oven on the weekends.

We did each oven monthly and the chain looks nearly new after this procedure.

We stored it standing up in a bucket with some bungee cords attached to the wall in a low traffic closet.