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We are operating a Frame 5 gas turbine, recently upgraded to mark VI E control.
When ratcheting is initiated, the shaft will not rotate rather you will hear an abnormal noise from the sequencing valve area. But when we manually disengage the jaw clutch everything seems to work well until the clutch is engaged again.
The pressure from 88-HR is about 65bar(it has been working well at this pressure before now or so I thought) though from manual it's operating pressure is about 80 bar. We are not experiencing leakages anywhere.
Could it be a problem from the gear box or clutch teeth? Could it be a pressure drop somewhere(where is the likely place to check)
Pls I will really appreciate your inputs.
Thanks
When ratcheting is initiated, the shaft will not rotate rather you will hear an abnormal noise from the sequencing valve area. But when we manually disengage the jaw clutch everything seems to work well until the clutch is engaged again.
The pressure from 88-HR is about 65bar(it has been working well at this pressure before now or so I thought) though from manual it's operating pressure is about 80 bar. We are not experiencing leakages anywhere.
Could it be a problem from the gear box or clutch teeth? Could it be a pressure drop somewhere(where is the likely place to check)
Pls I will really appreciate your inputs.
Thanks