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tinyclark

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Posts posted by tinyclark

  1. It was an engineering decision by WR-ALC, and the guy that made it is probably retired. We had problems with the SCNS dimmer on the H's. It had a 5 Amp C/B installed and it kept popping. We did some checks and found out it had near a 7 Amp draw on it when all the way up. An engineer added the ECM panels to the circuit. The C-130 has to be the most undercontrolled aircraft in the USAF. I have tons of stories of one mod team coming to the base and saying they were going to put equipment or C/Bs in certain locations, then me having to tell them another mod already had those locales. 

  2. I was going to suggest some extreme troubleshooting. Doing an Op Ck on that aircraft and another, using the TTU-205 and quickly bumping the altitude up or down 500' to measure the pressure exerted by the trim motor or servo using some sort of tension gauge. Hopefully it won't come back to haunt you. 

     

  3. Three questions right now.  It is strange that the servo is not driving if the trim tabs aren't keeping up.

    Does the Trim Monitor Test work?

    Does the normal elevator trim system work as advertised?

    What parts have been replaced or swapped?

     

  4. I was avionics, never messed with them. Maintenance on them was done at the depot. IF you are trying to repair the tube type, you will need a tube tester like a TV-7A. Without it,  you would turn out marginal units. I was at Norton AFB when Comm and Nav shops combined. The HF radios were repaired by a couple older civilians. When our guys started working on them, they asked where the tube tester was and were told, "We don't use them." Needless to say, the reliability went up on the HF radios. I guess they didn't want to work themselves out of a job. 

    To repair either one, you'd need a lot of test equipment. Attached is a minimum listing. Do you have all of this? Private message me if you have more questions, or e-mail me at bit73burger@yahoo.  com.

     

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