rgvbaz
27-02-2018, 04:02 PM
Hi
I've posted this up on the Denford site but thought I'd put it here too :)
I've recently bought a project Triac. I knew the Z ball screw would probably need replacing but after some advice from Colin on here I have searched and found somewhere that may be able to re-ball it.
Clearly I have to take it out and that's where the challenge comes...
I've done some googling and I haven't found any info or procedure on doing this.
There doesn't look to be enough room for the screw to be removed without removing the lower bearing.
How I see it:
1 - remove pulley.
2 - remove locknut and tab from top of screw.
3 - not sure...
I don't want to hammer the lower bearing out with the screw as it may damage it.
I can't get to the rear to remove it with my blind bearing puller as there is no access.
I could maybe drive the bearing out with a long punch being careful?
I could unbolt the column of the base and get to it that way but I'd rather not disturb everything - saying that if I got the lower bearing out I would have to fit a new bearing from the bottom anyway.
It's a bit like one of those puzzles you get at Christmas.
Any thoughts would be appreciated - particularly if I am missing something obvious.
Thinking about taking the head ball nut bracket of too to go with the screw for the refurb so the pre-load is correct.
My Triac doesn't have the bearing cap as per the drawing below.
23841
23842
23843
23844
23845
I've posted this up on the Denford site but thought I'd put it here too :)
I've recently bought a project Triac. I knew the Z ball screw would probably need replacing but after some advice from Colin on here I have searched and found somewhere that may be able to re-ball it.
Clearly I have to take it out and that's where the challenge comes...
I've done some googling and I haven't found any info or procedure on doing this.
There doesn't look to be enough room for the screw to be removed without removing the lower bearing.
How I see it:
1 - remove pulley.
2 - remove locknut and tab from top of screw.
3 - not sure...
I don't want to hammer the lower bearing out with the screw as it may damage it.
I can't get to the rear to remove it with my blind bearing puller as there is no access.
I could maybe drive the bearing out with a long punch being careful?
I could unbolt the column of the base and get to it that way but I'd rather not disturb everything - saying that if I got the lower bearing out I would have to fit a new bearing from the bottom anyway.
It's a bit like one of those puzzles you get at Christmas.
Any thoughts would be appreciated - particularly if I am missing something obvious.
Thinking about taking the head ball nut bracket of too to go with the screw for the refurb so the pre-load is correct.
My Triac doesn't have the bearing cap as per the drawing below.
23841
23842
23843
23844
23845