IIRC there were a few different shimano FW tools. and that FW only having 5 cogs may no be indexing. also the space between the FW and axle looks real close, you may need to remove the locknut and spacer to get it off
__________________
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk