Thread: Using a scope on fuel pump
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rick-l rick-l is offline
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Join Date: May 2002
Location: St Louis
Posts: 4,211
On a permanent magnet DC motor you see consistent current humps as the brushes change positions on the rotor. If one is missing (never seen a large one) you investigate further.
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Rick
88 Cab
Old 06-09-2015, 07:25 AM
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