There are 3 in the freehub, one larger inbound and two smaller outbound. Remove the freehub by simply pulling it off after removing the axle spacer.
Check to see if the bearings rotate ok, if not then replace. Clean out all the ratchet grooves and remove and clean the pawls and springs, reassemble with only a very slight amount of grease on the ratchet and under the pawls. To replace the freehub simply push back, working the rubber seal into place on the hub.
Very simple job.
What is annoying though is how crap the bearings are. Why on earth Hope have decided to swap to tiny bearings like that is beyond me, the old XC hubs had lovely big bearings that lasted longer than 4 months 🙁