REMOVING AND INSTALLING EXTRA FAN
Disconnect minus lead at battery.
Loosen screw on one center grill.

63064086 - click to zoom
 
Raise engine hood.
Loosen screws and remove grill.

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Loosen top mounting bolt.

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Disconnect plug.

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Unscrew bearing bolts at bottom and remove
extra fan from below.

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Replacing Carbon Brushes:
Unscrew nuts (1 ... 3) and open wire straps.
Remove extra fan from housing.
Installation: Use new wire straps.

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Bend open lockplate, unscrew nut and remove
fan wheel.
Important: Nut has left-hand threads.
Make sure lockplate engages in proper openings.

63064092 - click to zoom
 
Pull armature off of pole shoe housing.

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Unsolder carbon brushes.
Installation: New carbon brushes must slide
in guides easily.

63064095 - click to zoom