Removing detent plunger

I have a QCTP which I would like to fit to my WARCO BH600G. Because the QCTP was machined to fit another type of lathe I want to replace the large threaded circular nut with a full width “T” nut. The circular nut is a loose fit in the slot but will not slide out as the detent plunger assembly seems to be sitting loosely in a hole in it keeping the nut roughly centred in the slot.

How do I remove the detent plunger? As you can see from the under side there is no access to it.

I have tried unscrewing the detent but it just rotates without unscrewing. I also tried a little levering with a small screwdriver with no luck. I need a cunning plan – anyone got one?

Rik

Edited By Rik Shaw on 31/07/2017 13:02:03

Just a thought, but what about 'gluing' a small rod to the detent say with a drop of Araldite or plastic metal or JB weld or similar and try lifting the detent out the way when the Araldite or whatever sets? If I remember rightly the Araldite can be later removed with heat.

Have you asked Warco how it comes apart - they are usually quite helpful if you get to speak to the right person? Perhaps I would do that first!!

Chris

junior hacksaw blade?

Drill up from under the detent?

Small strong magnet.

The ones on my lathe came out by turning upside down and giving it a couple of wraps with a plastic hammer , there may be a small burr stopping it coming out ?

Another option is to leave it there bit glue it down in the hole with loctite or the like .

Its out. Used a chippies mallet, hand held the assembly and whacked the TOP a half dozen times and out it popped. It was being held in the hole with oily foundry sand. Thanks for all comments.

Rik

Edited By Rik Shaw on 31/07/2017 15:46:58

I thought poorly cleaned far eastern casting were a thing of the past.