MR MSENSE DGA 9 - Page 26

MSENSE
®
DGA 9 7045899/02 EN – 11.2020 Page 26
Note!!!
The following steps must be carried out in accordance with company
procedures. Work carefully and prevent air getting into the transformer.
Use a bucket to collect any leaking oil.
• Unscrew the vent screw by 3 or 4 turns anti-clockwise using the long size 4 hexagon key (vent-
ing is active).
• Open the transformer gate valve very carefully until oil runs out of the sample hose. Allow the
escaping oil to run into a container.