Do not use electric grease guns!
Bombardier just released a Service Bulletin calling for the inspection and replacement of the inner flap spigot bushing on all current Global aircraft.
All equipment for the ADS-B upgrade must be certified, and only qualified technicians can install and properly test the equipment once it's in place.
There is a very important change in the MPD Rev. 023 update 002, for the Falcon 900 Series aircraft you should pay attention to.