Hello. I'm need to get inside my ergo lever and though I know I can get inside the unit from the bottom, dismantling everything, it would suffice to just take the brake lever off. I was able to pull out the larger retention pin (the one that prevents the lever moving inside the unit) from the brake lever, but I still need to remove the one underneath it (the smaller one that actually holds the lever to the unit). Can this be done? Can I tap it out...? Thanks