To enable fcron by default, administrator have to run the following command:

  chkconfig --level 2345 fcron on

You can use crontabs provided by the package "crontabs", fcron knows
how to deal with this format. As superuser, enter the following command:

  fcrontab /etc/crontab

The fcron_watch_config service synchronizes automatically fcron control files
with /etc/fcrontab, /etc/crontab and files in /etc/cron.d whenever they
are modified. To activate this service in the default case, one should run: 

  chkconfig --level 2345 fcron_watch_config on

To remove definitively the fcron package, you'll have to remove the fcron
user by hand, and the /var/spool/fcron directory which contains the
binary fcrontabs.