[rowka]

Got a new 2.2 water cooled. I’m trying to open it up to put the ground wire.
Got the 4 cap screws off but the end cap won’t budge.

Heat gun? Bigger hammer?

I don’t have to remove the water nipples, do I?

[CitizenOfDreams]

If you insist on grounding the spindle (been reading Mactec too much?), it would be easier and less risky to connect the ground wire elsewhere. Say, to the bracket that holds the spindle. Or to one of the screws that hold the cap.

[ger21]

It's probably got silicone or some other sealant holding it in place.

[mactec54]

If you insist on grounding the spindle (been reading Mactec too much?), it would be easier and less risky to connect the ground wire elsewhere. Say, to the bracket that holds the spindle. Or to one of the screws that hold the cap.

Any one that has no knowledge of how these spindles need to be wire can post bad information, it would be an electrical code violation not Ground it

Please instruct on how someone would be able to take the Ground out the side of the spindle Plug and still be EMI compliant

Nothing risky about taking the top off ( just your lack of knowledge ) some of the poor quality spindles are painted with a sealant which makes them harder to take off, but they do come apart ok, sealant of any kind is not needed if the Orings have enough compression

[rowka]

A less than gentle whack with the rubber dead blow got it off.

Just a few observations on my spindle.
The end cap is powder coated, and as such, doesn’t have continuity to the body. There’s a plastic end plate inside with 3 screws that do read continuity with the body. Is this an appropriate place to attach the grounds from pin 4?

The factory wires from the connector into the spindle are awfully small (like 20awg small). Not sure what to think of that.

The cap screws that hold the end cap on are a bit short and only engage 3 or 4 threads. Should I get some a little longer?

[mactec54]

A less than gentle whack with the rubber dead blow got it off.

Just a few observations on my spindle.
The end cap is powder coated, and as such, doesn’t have continuity to the body. There’s a plastic end plate inside with 3 screws that do read continuity with the body. Is this an appropriate place to attach the grounds from pin 4?

The factory wires from the connector into the spindle are awfully small (like 20awg small). Not sure what to think of that.

The cap screws that hold the end cap on are a bit short and only engage 3 or 4 threads. Should I get some a little longer?

Yes you are on the right track some of from the factory, are using those screws that hold the plastic cover in place ideal you would change the screw you are going to use with a thread stud, or a( longer screw with the head removed ) use a nut and washer on top to hold the plastic cover, then your Ground lug held in place with a star washer and another nut

The wire are more than enough for that spindle size less than 3 Amps per wire so they are good to go, your spindle to the VFD does not need to be any bigger than 16 awg this is the correct cable for you to use CF6-15-04

https://www.igus.com/search?q=CF6-15-04

Yes if cap screws are to short replace them also check that the to ( 2 ) Oring pockets are not to deep and have from .014 to .020 compression on the Oring