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8. Draining

❼ ❼
– 44 –
9) Adjusting the loop folding pressure
Minimize the loop folding pressure as long as
both ends of the loop to be used can be folded.
[Adjustment]
Turn the adjustment screw of loop-folding pres-
sure reducing valve ❼ on the base plate coun-
terclockwise to minimize the pressure. Then, turn
it clockwise gradually to increase the pressure to
such a value as to fold the loop.
1) Draining has to be carried out once a day.
2) Press the portion ❶ upward, and draining is au-
tomatically performed.

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