A functioning Hayward Tiger Shark Pool Cleaner Impeller is key to a well working cleaner. The impeller not only creates the suction for the cleaner but also creates down-force to provide grip to climb walls. If your Tiger Shark Cleaner is having issues in either of these areas you may have a damaged impeller (The cleaner used in this "How To" is a Dirt Devil QC; which has the same design as the Hayward Tiger Shark cleaner.)
The Tiger Shark Cleaner's Impeller should be seen from this view while completing this step, in the middle of the Impeller you will see the locking screw. Remove this screw, being careful of the edges of the Tiger Shark Pool Cleaner Impeller fins as they can be very sharp or jagged if broken.
If the fan was broken and there are missing pieces from the blades, after you have removed the part, use this time to check for any missing shards in the body of the cleaner. Removal of these broken pieces will ensure that the cleaner resumes operation, these pieces will not cause further damage to the inside of the pool cleaner.