Ultimaker S3: how to lubricate extruder 'switch'?

[donogh 2]

I'm getting a weird squeak whenever the print head switches on the second extruder (in this case for PVA support). Here is a video with sound:

 

https://www.dropbox.com/s/8aem3tyls7wybok/S3 extruder switch squeak.MOV?dl=0

 

Images attached also -- there is already some green 'stuff' on the gear/switch, which I presume is lubricant.

 

How do I go about re-lubricating that part please?

 

(As an aside it's a brand new S3, delivered Tuesday..)

[donogh 2]

FYI, I put a couple of blobs of Magnalube (which came with the printer), on on each side of the switch, and it seems to have done the trick. 

Edited May 1, 2020 by donogh

[PLACreater4All 1]

My 4 weeks new Ultimaker S3 has the same 'clack' sound while moving down the right print head (without a squeak...). Is this 'clack' also gone with the Magnalube ?

[donogh 2]

I don’t think there’s any escaping the clack sound unfortunately ! 😉

[Guest maht]

If you look in the maintenance menu on the printer there's an option to calibrate the lift switch. You can re-zero the position where the hook mates with the switch. It's possible it's drifted out of range a bit.

 

Avoid putting Magnalube (the green stuff) on the plastic parts as it can be corrosive. You should have a bottle of Unilube in the box, better to use that if you think it's necessary.

[donogh 2]

Thanks Maht. I guess I'll try to clean off some of the Magnalube. It did seem to come with some already on it out of the box (see attached above from before I lubricated it). Maybe it's something else?

[PLACreater4All 1]

Magnalube-G is the right choice for that. Here is some stuff from the Magnalube site:

 

"...Magnalube-G grease, which continuously lubricates at temperature up to 130°F.

Also highlighted is Magnalube-G's paraffinic oil that doesn't react with sensitive plastic parts..."

Also no reaction with metal parts either...

 

The print core is hot and the plastic right above isn't on room temperature.

Unilube with its low viscosity is not an good idea for the print core. It is for the X and Y axles.

 

The guys from ultimaker did some Magnalube in the right side print core mechanism.

[donogh 2]

Thanks for the clarification, that's a relief!