Mounting and maintenance instructions
1. Screw the dehydrating breather onto the pipe underneath the expansion tank.
2. Loosen the wing nuts a few turns in order to enable the plexiglass container of the dehumidifying agent to be removed sideways.
3. Remove the oil trap and fill the glass bowl with transformer oil up to the level mark. A The oil for this can be tapped off from the test valve on the expansion tank.
4. Check that both gaskets are correctly located, and fit the container. Tighten the wing nuts firmly, to ensure good sealing.