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ARTIFICIAL   FEEL   - MAGNETIC BRAKES VISUAL CHECK (Continued)
ARTIFICIAL FEEL   MAGNETIC BRAKES OPERATIONAL CHECK (cont)

TM-55-1520-240-T-3 CH-47D Heilcopter Manual
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TM 55-1520-240-T 11-2.3 ARTIFICIAL FEEL –  MAGNETIC BRAKES OPERATIONAL CHECK 11-2.3 INITIAL  SETUP References: Applicable   Configurations: TM   55-1520-240-23 All Equipment   Condition: Tools: TM   55-1520-240-23: None Battery    Connected Materials: Electrical   Power   On None Hydraulic   Power   On Personnel   Required: Artificial   Feel   -   Magnetic   Brakes   Visual   Check Medium   Helicopter   Repairer Performed TASK RESULT 1. Check  that  THRUST  BRAKE  circuit  breaker  (1) is closed. 2. Check  that  CONT  CENTER  circuit  breaker  (2)  is closed. CHECK  ARTIFICIAL  FEEL  AND  PILOT  CONTROL OF MAGNETIC BRAKES CHECK  CIRCUIT  BREAKERS If circuit breaker (1) is open, close it. If it opens again, go to task 11-2.4 If circuit breaker (2) is open, close it. If it opens again, go to task 11-2.5. 3. 4. 5. Press  and  hold  pilot  CENTERING  DEVICE  RE- LEASE  switch  (3).  Center  pilot  pitch  and  roll control   stick   and   directional   pedals.   Release CENTERING  DEVICE  RELEASE  switch. Press  and  hold  pilot  CENTERING  DEVICE  RE- LEASE  switch  (3).  Move  pilot  control  stick through   longitudinal   travel   range.   Position control  1  inch  forward  of  center  position.  Re- lease   switch. Move  pilot  control  stick   1  inch  forward  and release   control   stick.   Move   pilot   control   stick 1  inch  aft  and  release  control  stick. Control  stick  and  directional  pedals  shall  center  eas- ily and remain there after CENTERING DEVICE RE- LEASE switch (3) is released. If both control stick and  directional  pedals  do  NOT  remain  centered,  go to  task  11-2.6.  If  either  control  stick  or  directional pedals  do  not  remain  centered,  continue  opera- tional  check  to  identify  problem. Control  stick  shall  move  easily  through  longitudinal travel  range  and  remain  at  selected  position  when switch (3) is released. If it does not, go to task 11- 2.7. Control  stick  shall  return  to  original  position  when control stick is released. If it does not, go to task 11-2.7 11-14 Change  12 GO TO NEXT PAGE







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