Air Bleeding Procedure

2.5 Swing control back-pressure valve

[NOTICE]

Conditions

Engine speed : Max. PTO : ON Swing brake : ON

1. Open the air-bleed plug and rapidly move the swing lever repeatedly between swing left and swing right.

2. When there are no more bubbles in the oil that flows out, tighten the plug while the oil continues to flow.

2.7 Jib tilt cylinder

1. Mount the jib. Lower the jib by jib tilt operation until the jib head touches the ground.

2. Loosen the air-bleed plugs (2 pcs.) Raise and lower the jib repeatedly until no more bubbles are visible from the oil flowing out of both air-bleed plugs.

2.6 Positive control circuit

While any of the crane operations described in "2.4 Pilot circuit" is performed, loosen the air-bleed plug near the lower pump to bleed the positive control circuit

You can bleed the circuit at the same time with pilot circuit bleeding.

3. Tighten the air-bleed plugs (2 pcs.) and raise the boom. Fully extend and fully retract the jib tilt cylinder repeatedly by jib tilt operation.

2.8 Hydraulic valve (winch brake)

[NOTICE]