One drop an hour is not a big deal, as the amm will tell you.
Insert the gear pins (ALL of them please!) and select the gear up hydraulically, you will quite likely have a large increase in leak rate...
Remember this actuator is pressurized the entire flight (well as long as the gear is up).
The actuator has a spare seal, but swapping it out can be a handfull as the torque on the retainer is REALLY high.
Replacing the actuator at homebase will be the way to go, if current leak rate allows it to be scheduled.
The actuator is a heavy thing and at least a bucket and a half of skydroll will be headed your way after disconnecting.
Be safe, IFIX