Maslow 4.1 new cooling fan

Hardware
1

The cooling fan shipped with the 4.1 hardware upgrade (shown resting in fan shroud left) appears to be the same as the fan that came with the 4.0 kit (right). Same part number, load rating, etc. I recall a forum thread on why it was shipped, but I cannot find it nor recall.

What is the problem the new fan fixing?

Could you point back to this page from your upgrade YouTube video: 4.1 Upgrade Instructions — Maslow

The upgrade has gone smooth. A small suggestion for the future would be to tighten the clearance on the three (3) nut holes on the controller mounting plate so the nuts have to be force set prior to mounting the plate. I used your technique of inserting a tool through the hole to align the nut and screw from the top while holding the nut in with a free finger. It is one of the trickier parts of the build (for me).

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2

I believe a recess was added to allow it to use the same mounting hardware as the rest of the build.

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3

The change is very subtle, it’s on the other side of the fan, the recesses are slightly larger so that they can mate with the cover slightly deeper allowing the same length of screws to be used to attach the fan as to attach everything else.

It’s a pretty insignificant change so no need to replace it if you don’t want to take the old one off.

4

Thanks guys…Replacement was incidental to the build. I think I am good to go.

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