TransformerCare Unit
Filling and bleeding the TCU and connections
HYDAC FILTER SYSTEMS GMBH
en
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BeWa TCU 3472805b en 2011-07-05.doc
2011-07-05
Filling and bleeding the TCU and connections
Fill and bleed the suction and return line as described as follows.
Only fill and bleed the TCU in pairs. Wear gloves and goggles to protect yourself
from escaping oil.
Fill the unit carefully to prevent air entering the transformer.
Bleeding the suction hose
Proceed as follows to bleed the suction hose:
1.
Close the manual ball valve (5) on the suction hose (15)
2.
Open the shut-off fitting on the upper transformer connection (20) fully.
3.
Hold the suction hose (15) with a ball valve (5) in a container (at least 10
liters).
4.
Open the manual ball valve (5) on the suction hose. As soon as a constant
flow rate of non-aerated oil comes from the suction hose (15), close the
ball valve (5).
5.
Perform further bleeding measures at the connection depending on the
type or requirements, e.g. careful opening of the fastening screws of the
connection flange to allow air trapped in the upper section to escape.
Hold a container underneath it to catch the leaking oil!
The connection fittings may be equipped with bleed screws.
6.
Connect the ball valve (5) with the suction hose (15) on the suction
connection (INLET) of the TCU. It is located under the drip tray.
7.
Open the ball valve (5) fully and check the TCU for leaks.
Summary of Contents for TCU Series
Page 63: ...Notes ...
