The autopulse platform (b)(4) was returned to the manufacturer for evaluation.Visual inspection was performed and no external damages were observed.Prior to functional evaluation, the clutch plate was inspected and the reported complaint was confirmed; the clutch plate was found to have burrs in the hex cut out and on the surface of the clutch rotor.After de-burring the clutch plate and removing the sharp edges from all 12 hex edges of the armature plate, the clutch plate was still found to be sticking and therefore required replacement to remedy the issue.Following replacement of the clutch plate, the platform was run with a test mannequin and performed as intended.The platform passed all functional testing.A review of the archive shows that no user advisories occurred on the reported event date of (b)(6) 2015.Based on the investigation, the part identified for replacement was the clutch plate.In summary, the reported complaint was confirmed during internal inspection of the device prior to performing functional testing.The clutch plate was replaced to remedy the complaint.Following service, including replacement of the clutch plate, the device passed all testing criteria.
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