Wow! Lot of ME Supers going under the knife these couple of days...
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Rewinder knob - wedge tool in the spindle prongs that turns the cassette, knob unscrews counter-clockwise
ASA/ISO selector - sorry I put this out of sequence... next...
Retainer slotted nut - A two prong tool must grip well the slots to get it spinning... I use a modified jewelry priers to open it... I have a spanner tool that is too big for this one.
Screw located on deck side next to ISO/ASA selector - easy enough...
Screw located the side of PENTAX - easy enough...