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´s for your help, I already recived these manual from you
Text excerpt from page 9 (click to view)
SG 320
The grill pan is supplied with a removable handle. To insert the handle, press the button on the handle with the thumb and pivot the handle slightly upwards inserting the lip into the widest part of the bracket. Move the handle towards the left, lower into position and release the button. Ensure the handle is positively located. When removing the handle, press the button on the handle with the thumb and pivot the handle slightly upwards and towards the right to remove from the bracket.
Ensure your hand is protected when removing the grill pan handle as the grill element can become very hot. ALWAYS REMOVE THE GRILL PAN HANDLE DURING COOKING. To correctly locate the grill pan on the shelf, ensure that the cut out on the underside of the handle bracket locates over the front bar of the shelf.
To check the progress of the food being grilled, the grill pan should be withdrawn on the shelf to attend to food during cooking.