Kobelco -6E hydraulic excavator release operation key points (hidden switch):
1 at the same time, according to the "picture changeover switch" and the buzzer stop switch for 5 seconds, the engine rotation speed becomes low speed idling.
The more than 2 function display shows the "possible release pressure operation".
The 3 buzzer sounded intermittently.
4 release the handle after several times the operation handle of the release circuit.
5 when the start switch is at OFF, the release mode is lifted and the buzzer stops.
6 press the exhaust valve on the upper part of the hydraulic oil tank of the excavator, and release the air in the tank.
7 at this point, the relief pressure in the hydraulic system can be completed and repaired.
8 when implementing item 4, a multifunction display shows the situation of "release failure", and the buzzer continues to ring.
9 when the buzzer does not stop, when the starter switch is placed at OFF, the buzzer will stop.
10 the release pressure is carried out again.