munirabbasi Posted April 5, 2017 Share Posted April 5, 2017 Hello Hercules Expertise During operation of No2, (AUTO mode) TIT, Ful flow and and Torque strat fluctuating more enough after fifteen minutes , at above CX over about 30-50 TIT, 500 to 700 torque and Fuel also.NULL operation is Normal .Any expert opinion, SWAP TD VALVE, TD amplifier and Wiring check found good. Regards Munir Abbasi Quote Link to comment Share on other sites More sharing options...
tenten Posted April 5, 2017 Share Posted April 5, 2017 Munir, If fluctuating comes only above X-over;.....Check your coordinator potentiometer. Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted April 6, 2017 Author Share Posted April 6, 2017 Thanks Munir Abbbasi Quote Link to comment Share on other sites More sharing options...
pjvr99 Posted April 6, 2017 Share Posted April 6, 2017 Coordinator first thing to check, pot is probably loose. After that, take a serious look at thermocouple harnesses. We had a lot of similar problems last few years that were traced there. Also take a good look at the gimbal bushings, and ALL control rod-end bearings. Also check condition of the prop universal joint Let us know what you found Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted April 6, 2017 Author Share Posted April 6, 2017 8 hours ago, pjvr99 said: Coordinator first thing to check, pot is probably loose. After that, take a serious look at thermocouple harnesses. We had a lot of similar problems last few years that were traced there. Also take a good look at the gimbal bushings, and ALL control rod-end bearings. Also check condition of the prop universal joint Let us know what you found Thanks defect has been solved (wiring Defective/intermittent) regards Munir Abbasi Quote Link to comment Share on other sites More sharing options...
tenten Posted April 6, 2017 Share Posted April 6, 2017 Munir; I appreciate if you inform us which wiring section is defective? Quote Link to comment Share on other sites More sharing options...
pjvr99 Posted April 7, 2017 Share Posted April 7, 2017 Left hand harness ?? Quote Link to comment Share on other sites More sharing options...
tenten Posted April 7, 2017 Share Posted April 7, 2017 13 hours ago, pjvr99 said: Left hand harness ?? Right hand harness; ……..Heads I win, tails you lose..... Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted April 10, 2017 Author Share Posted April 10, 2017 On 4/8/2017 at 2:01 AM, tenten said: Right hand harness; ……..Heads I win, tails you lose..... Thanks for hercules expertises We all continue strongly to maintain hercules flocks. Munir Abbasi Quote Link to comment Share on other sites More sharing options...
munirabbasi Posted April 11, 2017 Author Share Posted April 11, 2017 On 4/7/2017 at 1:45 AM, tenten said: Munir; I appreciate if you inform us which wiring section is defective? Miscellaneous connectors disconnected and reconnected as told the technician working the aircraft munir abbasi Quote Link to comment Share on other sites More sharing options...
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