Here's a little one liner to reset the expert password on 1100, might work with other models but I've never tried it.
Must be ran from the management server.
$CPDIR/bin/cprid_util -server <IP of 1100> -verbose rexec -rcmd /bin/bash -c "cd /pfrm2.0/config1 ; rm expert_pass_"
After you run that, ssh into the 1100. Enter expert and now you'll be prompted for a new expert password.