View single post by Geoff Dunaway
 Posted: Fri May 10th, 2019 03:29 pm
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Geoff Dunaway

Joined: Fri Dec 23rd, 2005
    That's a grease cup which allows the grease to flow into the bushing & onto the rotor shaft when the fan warms up a bit and you raise that brass rod.  This allows warmed grease to settle  toward the bushing and the rod pushes the grease into the bushing  & onto the shaft when you press it back down.