Turns out this was not the manual i was looking for. The concertmate 670 keyboard i have is a "Realistic" model made for Radio Shack and none of the diagrams on the owners manual i received matches up. HOWEVER, I must say the service Owners Manual provides was fast and efficient by being available online. The manual was in good readable condition and easily downloaded.
Thank you for your manual It has the basic things to and i use the Oszi for Longer Time.
Text excerpt from page 28 (click to view)
TO REMOVE THE WIREWORK RUNNERS
The wirework runners in both ovens can be removed for cleaning. 1. Remove all shelves and furniture from the oven. 2. Hold the wirework at the bottom, unclip from the cavity side an gently pull towards the centre of the oven. 3. Support the side panel at the bottom. 4. Unhook the runner and side panel at the top and remove from the cavity. 5. To replace, ensure the side panel is assembled on to the wirework runner before hooking it back into the oven.
Ensure that the wirework runners are firmly in place before refitting the oven shelves.
CLEANING THE SHELVES, WIREWORK RUNNERS AND OVEN FURNITURE
Soak the oven shelves, wirework runners and grilling grid in hot soapy water if heavily soiled, they will then clean more easily. If the shelves are heavily soiled a soap impregnated steel wool pad can be used. The grill pan and meat tin can be cleaned using a soap impregnated steel wool pad. All items of grill and oven furniture are dishwasher safe with the exception of the grill pan handle.
CARE OF STAYCLEAN SURFACES
The roofs and sides of both ovens and the main oven back panel are coated with a Stayclean finish. They should not be cleaned manually. Aerosol cleaners must not be used on Stayclean surfaces and must not come into contact with elements or the door seal, as this may cause damage. During normal use the Stayclean coating will become splashed with fats and food residues. By running the oven without food, the Stayclean surfaces burn off any soilage. Regular use of the oven cleaning cycle will help to keep the panels in good condition. See page 29.