DinoC-130

Thanks you very much for your answer. We took many actions: We changed the oil tank with new oil level flotant, the flexible hose that connect the oil tank with the gearbox oil pump, the shutoff valve locate below of the oil tank and we repeated the prodedure of fill oil tank with new oil. Also, we changed the oil filter because the filter was very dirty. Then of this, the problem dissapeared. I hope that our experiencie will serve you. Regards.

Hi. We have a problem with the gearbox pressure of a C-130 T56-A-15 engine. The pressure is low at Flight Level 100 and up. The pressure in gearbox is OK when start engine on ground. We verified oil tank, its OK; pressurization valve in the tank, its OK; shutoff valve, its OK; verified the oil lines, they are OK; changed Gearbox pump, the problem continues in the same conditions and changed the gearbox, the problem continues in the same conditions. An important detail about this problem is that when the problem occurs, the level oil tank increase. 1,5 gallons aprox. when the gearbox pressure is 148 PSI. Can someboby help us? Thank you very much. Regards.

Sorry, I was forgot. An important detail about this problem is that when the problem occurs, the level oil tank increase. 1,5 gallons more or less when de gearbox pressure is 148 PSI.

Hi. We have a problem with the gearbox pressure of a C-130 T56-A-15 engine. The pressure is low at Flight Level 100 and up. The pressure in gearbox is OK when start engine on ground. We verified oil tank, its OK; pressurization valve in the tank, its OK; shutoff valve, its OK; verified the oil lines, they are OK; changed Gearbox pump, the problem continues in the same conditions and changed the gearbox, the problem continues in the same conditions. Can someboby help us? Thank you very much.