Recent content by asarhan

  1. A

    IGV Servo Positions Explanation

    Dear CSA, Thank you so much for your clear, informative and unambiguous explanations "not only this one". They have helped me tremendously.
  2. A

    IGV Servo Positions Explanation

    Hello all, The GE frame 9E IGV servo valve 90TV-1 has four positions as follows: Fast open Fast close Position hold Slow close "orificed" lines Can anyone please state when exactly each position is active. Why there's no slow open position? Thanks in advance
  3. A

    Low Lube Oil Bearing Header Pressure

    hello flow, have you checked the check valve found on the output of the auxiliary lube oil pump functionality? it may be leaking the main pump output back to the oil tank. this leak will stop only when the lube oil auxiliary pump usually "88QA-1" is running. first you may perform a DC...
See more
Top