herky400M Posted March 17, 2010 Share Posted March 17, 2010 Hello C-130 world, does anyone have slow TD-valve anticipation on the A-15 models? A colleague of mine in NewZealand had to change the motor and gear train in the valve. Anyone did the same and any SIL or COIL on this? greetz Herky400M Quote Link to comment Share on other sites More sharing options...
pjvr99 Posted March 18, 2010 Share Posted March 18, 2010 Hey Bob, I got your PM but things a little crazy. I don't really understand what 'anticipation' has to do with the TD valve. Below cross-over (temp limiting), it is just an over temp protection, while above it controls at the temperature set by throttle input. When doing the 'Yellow box' (TD system calibration), step 9 and 18 give 14 seconds as a response time for the valve/motor to move from a given setting to NULL. This can be easily verified when doing a TD system 'Controlling' check. It is possible that the motor or the brake was binding, and this is why the OH facility replaced the drive train. Hope this helps PJ Quote Link to comment Share on other sites More sharing options...
Lkuest Posted March 18, 2010 Share Posted March 18, 2010 How do you perform a TD-valve anticipation check? Quote Link to comment Share on other sites More sharing options...
Steve1300 Posted March 21, 2010 Share Posted March 21, 2010 I'm pretty sure that this "anticipation check"is the return-to-null time check. If it is not, then I guess I need to know the answer to this as well. Quote Link to comment Share on other sites More sharing options...
tusker Posted March 21, 2010 Share Posted March 21, 2010 I realize that I've been away from it for a while now, but I know that there was a TD control, Null system check. And I think that check made sense!!. What'd you think!!!..................................John Boy...........and I liked it so much!! Quote Link to comment Share on other sites More sharing options...
herky400M Posted March 22, 2010 Author Share Posted March 22, 2010 the anticipation time is the reaction time between null and Auto or vice versa! it can be tested with the "yellow box" the tester but in real situations..... anyone have an idea about the coil...or sil.. see @ top greetz bo Quote Link to comment Share on other sites More sharing options...
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