Hi. I've got a SEBO Airbelt K1 Pet, circa 2005 and it's still going great, in that the vacuum is still fantastic and everthing still works except the cable retract mech. The cable retract mech has given up the ghost, mainly because the heat the thing generates has softened the cable reel sides and it now fouls the casing. I might replace the reel sides with some made of brass, anyhow that's not why I'm here. I'm looking for advice on what TLC to give it to keep it going. The 2100W motor is wonderful and I don't want to have to replace it with one with only 1600W thank to the EU regs. What should I inspect please? I'd like to check the condition of the fan/vacuum. As this machine is a little long in the tooth, are there any parts that I should buy before they disappear entirely please? Is there a Service Manual, and/or schematic parts diagram available please?