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POWER STEERING SYSTEM OPERATIONAL CHECK (Continued) - TM-55-1520-240-T-1_822
AFT   RIGHT   WHEEL   DOES   NOT   MOVE   WHEN STEERING   CONTROL   KNOB   IS   ROTATED   IN EITHER   DIRECTION

TM-55-1520-240-T-1 CH-47D Heilcopter Manual
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TM    55-1520-240-T 7-5.4   POWER   STEERING   SYSTEM   OPERATIONAL   CHECK   (Continued) 7-5.4 TASK RESULT 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. Have   helper   set   BRAKE   STEER switch  (8)  to  ON.   Close   guard   (7). Have   helper   set   SWIVEL   switch   (2) to   UNLOCK.   Manually   turn   wheel slowly    counterclockwise    90 degrees.   Set   SWIVEL   switch   (2)   to STEER. Manually   return   wheel   to   neutral. Have   helper   turn   STEERING   CONTROL knob   (5)   to   extreme   RIGHT   position. Have   helper   set   SWIVEL   switch   (2)   to LOCK,   then   STEER. Have   helper  turn   STEERING   CONTROL knob   (5)   to   extreme   RIGHT   position. Have   helper   set   SWIVEL   switch   (2) to   UNLOCK.   Manually   turn   wheel slowly   clockwise   90   degrees.   Set SWIVEL   switch   (2)   to   STEER. Manually   return   wheel   to   neutral. Have   helper   turn   STEERING   CONTROL knob   (5)   to   extreme   LEFT   position. Have   helper   set   SWIVEL   switch   (2)   to LOCK,   then   STEER. Have   helper   turn   STEERING   CONTROL knob   (5)   to   extreme   LEFT   position. PWR   STEER   caution   light   (9)  shall  come  on.  The wheel   shall   not   move.   If   it   does,   replace   STEER- ING   CONTROL   box. PWR   STEER   caution   Iight   (9)   shall   stay   on.   If   not replace   STEERING   CONTROL   box.   Refer   to   TM 5 5 - 1 5 2 0 - 2 4 0 - 2 3. Wheel   shall   not   move.   If   it   does,   replace   STEER- ING   CONTROL   box.   Refer   to   TM   55-1520-240- 23. Aft   right   wheel   shall   swivel   counterclockwise.   If not,   replace   STEERING   CONTROL   box.   Refer   to T M    5 5 - 1 5 2 0 - 2 4 0 - 2 3. PWR   STEER   caution   light   (9)   shall   come   on. Wheel   shall   not   move.   If   it   does,   replace   STEER- ING   CONTROL   box. PWR   STEER   caution   light   (9)   shall   stay   on,   if   not replace   STEER   CONTROL   panel. Wheel  shall  not  move.  If  it  does,  replace  STEER CONTROL   box.   Refer   to   TM   55-1520-240-23. PWR   STEER   caution   light   (9)   shall   go   out. Wheel   shall   swivel   clockwise,   if   not,   replace STEERING    CONTROL    Panel. — FOLLOW-ON     MAINTENANCE: T M    5 5 - 1 5 2 0 - 2 4 0 - 2 3: Battery     Disconnected Electrical   Power   Off Hydraulic   Power   Off Jack   at   Aft   Right   Landing Gear   Removed Aft   Right   Landing   Gear Access   Panel   Closed. END  OF  TASK Change  1 7-163







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