joey8819 Posted October 14, 2008 Share Posted October 14, 2008 hi i have problem with c130h aircraft.After landing below 17 knots speed with normal conditions (normal brake and anti skid on)brake suddenly lost pressure.when switch off anti skid brake come out in good.we did changed tranducers,control box,anti skid valves,also normal brake control valves,snags still persist.During high speed taxy check its run smoothly,but after flight its come again.. pls help me Quote Link to comment Share on other sites More sharing options...
agarrett Posted October 23, 2008 Share Posted October 23, 2008 How was the airplane configured when it happened? Engines in low-speed, ATM or APU? Do you have a Lockheed service rep? If you do ask him about EMF or Ripple voltage. Quote Link to comment Share on other sites More sharing options...
spectrefe Posted October 26, 2008 Share Posted October 26, 2008 nice avatar Al, i like it Rick Quote Link to comment Share on other sites More sharing options...
Zaherk Posted November 2, 2008 Share Posted November 2, 2008 How was your main strut extensions(Pressures), are your squat switches good. In what condition are your wire loom down to the squat switches? Maybe an intermittend loose wire. We had the overserviced struts once, when she\'s loaded the squat switches made, after landing no GTC, no brakes and no Bus tie. Quote Link to comment Share on other sites More sharing options...
NATOPS1 Posted November 7, 2008 Share Posted November 7, 2008 Agreed, if the aircraft thinks it is in the air the TD switches (weight on wheel switches) (Squat switches) what ever you call them....will prevent the appplication of the brakes...part of the cant land with the wheels locked protection.... Was there a wingdown condition during the rollout? Quote Link to comment Share on other sites More sharing options...
damnpoor Posted November 11, 2008 Share Posted November 11, 2008 I agree with the touchdown relay idea, and also remember antiskid is normally inoperative below 15kts. Quote Link to comment Share on other sites More sharing options...
SonnyJ Posted December 9, 2008 Share Posted December 9, 2008 I found this while looking for something else: FOUND THAT THE RH AFT TRANSDUCER DID NOT PRODUCE VOLTAGE WHEN THE TEST SET MOTOR WAS PLACED IN HALF SPEED. IN THIS POSITION, 5.6 TO 8.0 VOLTS SHOULD BE INDICATED ON THE TEST SET. Quote Link to comment Share on other sites More sharing options...
NATOPS1 Posted December 9, 2008 Share Posted December 9, 2008 We are talikg same aircraft right.... A single transducer failure would only render that wheel brake inoperative, not ALL brakes... No voltage would tell the control the wheel is not turning and release the brake pressure for only that brake assy. allowing it to trun and not \"skid\" Quote Link to comment Share on other sites More sharing options...
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