TM 5-3895-373-20 REFERENCE INFORMATION DCA CIRCUIT ENGINE SPEED --STE/ICE-R TEST 10 DESCRIPTION TEST PROCEDURES Measures engine speed in the range of 50 to 5000 rpm 1. Set TEST SELECT switches to 10. using tachometer generator. DCA Test Pins: c and d 2. Set ENGINE CRANK  switch  on  DCA  housing  to TEST to prevent engine from starting. PRE-TEST  PROCEDURES 3. Press and release TEST button. Run confidence test per TM 9-4910-571-12&P. 4. Turn ignition switch to START position and crank engine for 10 seconds per TM 5-3895-373-10. POSSIBLE  ERROR  MESSAGES None 5. Observe  displayed  value.    Displayed  values  are in rpm.  If .9.9.9.9 is displayed,  engine  speed  is not within test range.  Expected display  value  is 100 rpm minimum. 6. Start engine per TM 5-3895-373-10. 7. Set  throttle  control  to  IDLE  per  TM  5-3895-373- 10. 8. Repeat  step  5.    Expected  display  value  is  500 to850 rpm (650 rpm is nominal). 9. Set  throttle  control  to  MAX  per  TM  5-3895-373- 10. 10.   Repeat  step  5.    Expected  display  value  is  2640 ±40 rpm (2650 rpm is nominal). FUEL SUPPLY PRESSURE - STE/ICE-R TEST 24 DESCRIPTION TEST PROCEDURES Measures the outlet pressure of the fuel pump. 1. Shut down engine per TM 5-3895-373-10. Transmitter: 12258932-5 2. Set TEST SELECT switches to 24. DCA Test Pins: u and v 3. Press  and  hold  TEST  button  until  CAL  appears on display. PRE-TEST PROCEDURES Run confidence test per TM 9-4910-571-1 2&P.  Wait for one minute after turning engine off to run confidence test. 4. Release TEST button and wait for offset value to appear  on  display.    If  offset  value  is  within  -4.5 and    +4.5,    proceed.        If    not,    go    to    DCA troubleshooting in TM 9-4910-571-12&P. POSSIBLE ERROR MESSAGES 005 Required offset test was not performed. 5. Press and release TEST button. 6. Run engine at test speed per TM 5-3895-373-10. 7. Observe displayed value.  Display values are in pounds    per    square    inch    (psi).        Expected minimum values are: Cranking 7.4 psi 500 to 850 (650 rpm is normal) 7.9 psi 2640 ± 40 (2650 rpm is normal) 6.1 psi FUEL FILTER PRESSURE DROP - STE/ICE-R TEST 26 DESCRIPTION TEST PROCEDURES Detects clogging via opening of a differential pressure 1. Set TEST SELECT switches to 26. switch across the fuel filter. 2. Run engine at MAX  per TM 5-3895-373-10. Transducer: 12258938 3. Press and release TEST button. DCA Test Pins: s and t 4. Observe  displayed  value.    Expected  display  is PASS.    If  .9.9.9.9  is  displayed,  voltage  is  not within test range. PRE-TEST  PROCEDURES Run confidence test per TM 9-4910-571-12&P. POSSIBLE ERROR MESSAGES None 2-379