Leak Hydraulic
Leak Hydraulic

is it necesary to bleed the air from the hydraulic system in heavy equipments like the excavators? how?
my excavator hose has a leak. i installed new hose. the hydraulic oil was partially drained without my knowing. I started it but no response. I add oil but has no power. what would I do?
It entirely depends on where in the system the replaced hose was. If it was on the suction side of the pump, there may be trapped air that needs to be purged before the pump will start to pump again. If on the pressure side, it would not cause what you describe. Another thing is if the controls are pilot valve operated and the pilot system got air in it, it would need to be bled out. You may need to contact the service department at a dealership and ask for some help.
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Welding up the hydraulic leak on the JD 4230
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US $171.35




































