Attempted Disassembly of an Aloris BXA QCTP

[Z2V]

I took apart an Armstrong QC-4 piston for cleaning and lube last summer.
Had me baffled. Carefully tried the bigger pipe method, tried lube. Was Frustrated!!
Finally put her away for a couple days. Came back to her, and with one glance I knew what I had to do, it was easy.
She came apart, cleaned her and reassembled.

Uglydog,
Care to share what you did?

 

[Uglydog]

Z2V,
I wish I remembered!!
Seems to me that I noticed that the piston was spring loaded and by rotating the lever while depressing the piston it just disengaged.
I've not had a wedge system apart.

Daryl
MN

 

[lxcnc]

Here is a post I found that shows the internal barrel that you’re trying to unscrew. Also, I read that you should remove the handle - I did this but can’t remember if it really mattered.
https://www.hobby-machinist.com/threads/aloris-type-import-qctp-barrel-gets-unscrewed.10755/

 

[middle.road]

Thanks LX!
It resisted my limited attempts. I settled on soaking it and blowing it out several times. It's moving smoothly now so I'm going to cross my fingers and get this puppy mounted.
The existing T-Nut and Stud are off of a Clausing and the nut is an 1/8" narrower on the bottom width - of course.
The only part that I managed to disassemble was the knob...

 

[Bob Korves]

"Tamper proof"

 

[4GSR]

"Tamper proof" Another level of challenge to a machinists or machine nut like us.

 

[richz]

This is what I made to disassemble mine.

 

[middle.road]

This is what I made to disassemble mine.

Now there's and idea.
That'll be up next on the list to try.
Thanks!

 

[lxcnc]

This is what I made to disassemble mine.View attachment 259912

I can’t believe I didn’t think of making a tool like this! Simple but very effective!

 

[Mystery1]

I would use an impact wrench with that latest tool. The shocks will generally loosen things up where constant pressure won't.