Greetings from GoVacuum,
I wasn't able to find the manual for the Kenmore model, however I did find the instruction manual for the corresponding Panasonic canister vacuum cleaner. Your particular Kenmore model is actually made by Panasonic for Sears, and then Sears puts the Kenmore name on the vacuum cleaner. They are identical internally, and have the same parts and components, besides the filter that is behind the bag. Sears makes Panasonic put a specially designed filter in the Kenmore's so that the customer has to go back and purchase that filter from Sears.
To download the instruction manual, please visit the link below;
Owners Manual For Sears Kenmore Power-Mate Model 116.3489890C
You can also find a parts schematic of the power head below if you need to purchase parts;
Parts Schematic For Sears Kenmore Power-Mate Model 116.6489890C
I hope that this information helps you. Please let us know if we can provide you any further service, or if you have any further questions we can answer. You may email me at chris (dot) jones (at) govacuum.com.
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