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 3 (click to view)
REMOVING THE CONTENTS OF THE DUST CONTAINER Always operate the cleaner with the dust container installed. Remove the dust container by using the open button on the handle. (fig. 20) Remove the filter set by pushing the button. (fig. 21) Remove the contents of the dust container. (fig. 22) Insert the filter set back into the dust compartment. Insert the dust compartment back into the cleaner by pressing it down until it clicks. BLOCKED AIRFLOW AND DIRTY FILTERS The cleaner stops automatically if a blockage occurs in the nozzle/tube/hose or if the filters are blocked with dirt. Disconnect from mains and allow the cleaner to cool for 45-60 minutes. Remove blockage and/or clean filters. Restart the cleaner. REPLACING THE FILTERS The dust container must be emptied if the window of the dustbag full indicator is illuminated when the cleaner is operating at maximum power and the nozzle is raised from the floor. Filters should be replaced at least twice a year or when they become visibly soiled. Always operate the cleaners with filters installed to avoid reduced suction. Disconnect from electrical outlet before cleaning filters. Replacing the cartridge filter Remove the dust container by using the open button on the handle. (fig. 20) Remove the filter set by pushing the button. (fig. 21) Remove the cartridge filter by turning it counter-clockwise (A) and pull it out (B). (fig. 23) Rinse it under tap water. (fig. 24) Air dry for approximately 24 hours, to ensure it is completely dry before re-using. Avoid direct sunlight and extreme drying circumstances. (fig. 25) Insert the cartridge filter into its place (B) and turn it clockwise (A). (fig. 23) Insert the filter set back into the dust container. Insert the dust container back into the cleaner by pressing it down until it clicks. Cartridge filter reference number: UF71b Replacing the motor filter Remove the dust container by using the open button on the handle. (fig 20.) Remove the filter set by opening the button. (fig.21) Remove the filter with grill from its holder. (fig.26.) Remove the filter from the grill. (fig. 27) Put a new filter into the filter grill. (fig. 27) Put the filter with grill back into its place. (fig.26.)