TC Fan Sequence
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These fans are from early and later model TCs. They appear to be the same but differ electrically. The fan on the left is Apple P/N 607-2113 and the fan on the right is Apple P/N 607-3650. NOTE: We will fit a 33 Ohm resistor to -2113 and a 39 Ohm resistor to -3650. 33 Ohms on a -3650 makes it run too fast and make too much noise!

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Having removed the fan from the baseplate by pushing the rubber pillars through the holes, now remove the pillars from the fan.

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Gently stretch away from the fan and hold against the side.

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Now push the end through the hole; a small plain -blade screwdriver is better than the pliers shown.

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Until it can be pulled out without snapping off the head.

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With sharp side cutters, cut here.

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It should look clean, like this.

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Next cut the pillar like so...

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Top, bottom and pieces removed.

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Clamp the bottom piece.

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Apply 'superglue'. Just a dab...

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... it should look 'wet' only.

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Carefully apply the top and press together.

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Resulting in a shortened pillar. It will be possible, if you're quick, to reposition the top and bottom pieces for a better fit.

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Before and after. I really should have 'repositioned' those top and bottom pieces!

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Re-insert into the other side of the fan. Repeat for the other two support pillars.

TC fan plug & socket

Extra text added here to REALLY emphasise which wire to cut and which wire needs the resistor!

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Cut the control line. Snip and strip back the 5V line. 'Tin' the ends with solder.

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A 33 Ohm, (or 39 Ohm for fan type -3650) 1/2 Watt resistor, small and large pieces of heatshrink tubing.

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Solder in the resistor.

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Apply the heatshrink.

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Shrink it to fit tightly.

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Peel back the sponge gasket and hold it back with tape.

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Apply the tape 'patch' with non-sticky piece on the inside. I have not shown how to make the 'inside' patch but it needs another bit of tape put over the hole and a very sharp tipped knife to cut out around the opening.

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Trim away the surplus tape with a sharp blade.

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I sign mine with year and week number... vanity, all is vanity! You could add 'COPYRIGHT - CHRIS FACKRELL' :-)

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A completed fan 'assembly', ready for fitting to the base plate.