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The posts are removed with a the right sized socket. I use a fitting on my small hand drill. you then lightly tap them out of the playfield once the nut is removed. These can be cleaned and put into the tumbler. They make a huge difference. Also, if you have a soldering iron and are comfortable using it, remove the pop bumper bodies and skirts and replace them.

Documenting the teardown is REALLY important, and you have done a great job !

I am kind of wishing now I had taken more photos of the tear down. I am a bit nervous about the whole thing being it my first one.

I will need to buy a "tumbler". Ill replace any bent screws, wrong screws or missing washers.

Ive got the nut off the bottom of the shafts, I had thought a tap from the bottom might get them out but was a bit weary about just going straight for it without checking. Cheers for your assistance! Ill give it a shot when I get home.