Stylus change on vintage Garrard autoslim TT?

[Jimuh]

Hi Again,
My GE Consolette has a Garrard Autoslim turntable (shown) has a flip-able dual needle for microgroove 33/45s and a chonkier side for 78s. The 78 needle is fine but the other, not so much. So I bought a replacement from LP gear. But I don't know how to change the stylus on this model. Are there any guides out there or tips you could supply? Thanks!
Jim

 

[sound hound]

Have you looked for a user's manual for the turntable?

 

[Jimuh]

Yes, but it had nothing to say about stylus replacement. Ditto the service manual.
The closest I could find online was this YouTube video, which seems to be for another brand/model

 

[sound hound]

I do not use a flip over cartridge. Maybe someone else here can help.