• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
GLOBAL POSITIONING SYSTEM VISUAL CHECK (Continued) - TM-55-1520-240-T-3_1087
GLOBAL POSITIONING SYSTEM OPERATIONAL CHECK (Continued)

TM-55-1520-240-T-3 CH-47D Heilcopter Manual
Page Navigation
  996    997    998    999    1000  1001  1002    1003    1004    1005    1006  
TM 55-1520-240-T 118-1.3 GLOBAL POSITIONING SYSTEM VISUAL CHECK (Continued) 18-1.3 13.Set the GPS CDU Data switch (10) to STAT.  Lift switch guard and toggle the Zeroize switch (17). 14.Set  the  GPS  CDU  DATA  switch  (10)  to  STAT. Insert   a   Data   Loader   Module   which   contains almanac     information     into     the     Data     Loader Receptacle  (19)  located  on  shelf  five  of  the  cabin avionic/electronic  compartment.    Leave  in  for  at least   20   seconds,   then   remove   Data   Loader Module. 15.With the GPS CDU Data switch (10) still at STAT, slew   (11)   down   to   page   2   and   compare   the Almanac Age located on display (6) line 2 with the age recorded earlier in step 7. 16.Turn   the   GPS   CDU   Mode   switch   (7)   to   OFF. Leave  OFF  for  a  few  minutes  then  turn  back  ON with the Mode switch (7) in the NAV position. 17.   Stop APU.   Refer to task 15-1.4. FOLLOW-ON MAINTENANCE: TM 55-1520-240-23: Battery Disconnected Electrical Power Off The   CDU   data   display   (6),   line   2   shall   display ZEROED.    If  ZERO  FAIL  is  displayed,  go  to  task 181.12. No  error  messages  shall  be  displayed  on  the  CDU data display (6).  If an error message is displayed, go to task 18-1.6. The  two  values  shall  be  different  if  the  Almanac stored    in    the    Data    Loader    Module    has    been successfully  loaded  into  the  GPS  system.    If  the Almanac Age is the same as before loading data with the Data Module, go to task 18-1.8. After   warmup   and   test   completion,   GNAV   shall appear on CDU data display (6) line 1.  This means that the previously loaded almanac has been stored by the GPS receiver (9).  If COLD appears on CDU data display (6) line 1 instead, go to task 18-1.13. GO TO NEXT PAGE 18-16  Change 18







Western Governors University

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.