whack an m10 or whatever is appropriate through the hole in the washer, screw a bolt with a big head in so it projects just above the crank, then lever it up with a levery type thing trapped between the top of the crank and the bottom of the bolt head..
whack an m10 or whatever is appropriate through the hole in the washer, screw a bolt with a big head in so it projects just above the crank, then lever it up with a levery type thing trapped between the top of the crank and the bottom of the bolt head..