b
a
a
OPENING BLEED
SCREW
CLOSING BLEED
SCREW
Fig.30
Fig.29
3) Using the bleed screw, allow the air to come out from the
hydraulic circuit until non-emulsified oil appears.
4) Tighten the bleed screw before the operator finishes the
opening cycle.
5) Command the gate to close.
6) While the leaf is moving, loosen the closing bleed screw
(Fig.29 ref.b)
7) Using the bleed screw, allow the air to come out from the
hydraulic circuit until non-emulsified oil appears.
8) Tighten the bleed screw before the operator finishes the
closing cycle.
9) Repeat these operations several times.
10) Add oil till the oil level is just below the cap (Fig. 30, ref. a)
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