I agree that it is not a regular or easy task.
@Geoff I understand that not being a regular or standard procedure a structured system will opt for practical solutions.
@MikeX even today in countries with a different economy we do this task (replacement of inserts and/or oil refill)
@MikeX : I have tampered with direct digital panels due to internal 3V supply failure due to blown filter capacitor
Regarding the necessary equipment: wouldn't universities and their science laboratories have the resources to deal with this? As an individual, I have provided myself with a UHVac system (Leybold pump + Varian diffussion pump + Varian UHV ionization meter) and a pinch off (3/4"). I managed to evacuate satisfactorily, withstanding 80Kv of test.
I have problems with my leak detector (Helitest) for helium. I use it to pressurize the system before evacuating.
As for certifications: could it be that bureaucracy is blocking us from applying engineering? Perhaps engineering should extend its ability to find the fissure in the confinement of bureaucrats. I think that the day will come when the control agencies extend the agony due to the lack of provision of certified coffins.
