Don't stick a screw driver in the front of the case. This is
not necessary and you will scratch it up! Just put an impact wrench
on the nut (The type of impact used on lug nuts) and hit the button on the gun.....the nut will come off in 2 seconds without backing up the fan blade,,,just let the blade free wheel while removing. The same
goes for reinstalling the nut...if you back up the fan blade or try to
hold it when tightening the nut with an impact you will overtighten
the nut and ruin the alternator front bearing.
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