

I'm in the process upon bleeding the brakes on my 2016 Diamond back heist.. the caliper is a shimano AM396.
I can't find any screw to open and close the nipple.
I figured that maybe the hole on the nipple would accept an Allen key but it doesn't. Any ideas 😩
by Bgrv
1 Comment
Is it not just around the corner above the bleed nipple? [Manual here](https://si.shimano.com/en/pdfs/dm/BR0005/DM-BR0005-16-ENG.pdf)