Actually, I was looking for this information for 3 years!...now thanks to you, the manual is on my hands and of great help, cause I understand now where I was doing wrong connections and wires...excellent, I'll be back to you if in need, thank you.
This manual covers the main equipment features only. While it also includes the procedure for saving and loading from the now long obsolete memory cards it does not mention the how to operate with the optional floppy drive interface so I am still at a loss about how to use this! Note that there is a separate manual covering the MIDI interface and programming via the keyboard, not included in this download. You will also need to get hold of this if you want to use the MIDI interface properly. Basically there is little difference between this manual and the free to download manual for the similar PR60 model.
Text excerpt from page 6 (click to view)
CLEANING THE HOSE AND NOZZLE
The vacuum cleaner stops automatically if the nozzle, tube or hose becomes blocked, or the filter and dustbag are blocked. Disconnect from the mains and allow the vacuum cleaner to cool down for approximately 20-30 minutes. Clear whatever is causing the blockage and/or replace dirty filters or the full dustbag. Then restart the vacuum cleaner. Tubes and hose 1 Use a cleaning strip or similiar to clear the tubes and hose. 2 It is sometimes possible to clear the hose by "massaging" it. However, be careful in case the obstruction has been caused by glass or needles caught inside the hose. Note: The warranty does not cover any damage to hoses caused by cleaning them. Cleaning the floor nozzle 3 To avoid reduction in suction power, frequently clean the dual purpose floor nozzle. The easiest way to clean it is by using the hose handle.