TM 5-3895-373-20 DCA CIRCUIT REFERENCE INFORMATION AIR CLEANER PRESSURE DROP TEST - STE/ICE-R TEST 28 DESCRIPTION TEST PROCEDURES Measures pressure drop across air cleaner to detect 1. Shut down engine per TM 5-3895-373-10. extent of air cleaner clogging. 2. Set TEST SELECT switches to 28. Transmitter: 12258932-2 DCA Test Pins: AA and AB 3. Press  and  hold  TEST  button  until  CAL  appears  on display. PRE-TEST  PROCEDURES Run confidence test per TM 9-4910-571-12&P. 4. Release   TEST   button   and   wait   for   offset   value   to appear on display.  If offset value is within -9 and +9, proceed. 5. Press and release TEST button. POSSIBLE  ERROR  MESSAGES 6. Run engine at test speed per TM 5-3895-373-10. 005  Required offset test was not performed. 7. Observe  displayed  value.    Displayed  values  are  in pounds  per  square  inch  (psi).    Expected  maximum values are: Cranking 1.2 psi 500 to 850 (650 rpm is normal) 2.1 psi 2640 + 40 (2650 rpm is normal) 14.5psi TURBOSUPERCHARGER BOOST PRESSURE TEST - STE/ICE-R TEST 30 DESCRIPTION TEST PROCEDURES Measures discharge pressure of the turbosupercharger. 1. Shut down engine per TM 5-3895-373-10. Transmitter: 12258932-4 DCA Test Pins: w and x 2. Set TEST SELECT switches to 30. 3. Press  and  hold  TEST  button  until  CAL  appears  on display. PRE-TEST PROCEDURES Run confidence test per TM 9-4910-571 -24&P. 4. Release   TEST   button   and   wait   for   offset   value   to appear  on  display.    If  offset  value  is  within  -7.5  and +7.5, proceed. POSSIBLE  ERROR  MESSAGES 5. Press and release TEST button. 005 Required offset test was not performed. 6. Run engine at test speed per TM 5-3895-373-10. 7. Observe  displayed  value.    Displayed  values  are  in inches   of   Mercury   (in.      Hg).      Expected   minimum values are: Cranking 1.1 in Hg 500 to 850 (650 rpm is normal) 0.2 in.  Hg 2640 ± 40 (2650 rpm is normal) 13.6 in. Hg OIL PRESSURE TEST - STE/CE-R TEST 35 DESCRIPTION TEST PROCEDURES Measures engine oil pressure. 1. Set TEST SELECT switches to 35. Transmitter: 12258932-6 DCA Test Pins: y and z Measurement Range: 0 to 100 psi 2. Make sure no stimulus is applied to transducer (shut engine off). 3. Press  and  hold  TEST  button  until  CAL  appears  on display. PRE-TEST PROCEDURES Run confidence test per TM 9-4910-571-12&P. 4. Release  TEST  button  and  wait  for  offset  value  to appear on display.  If offset value is within - 15 to +15 psi, proceed. POSSIBLE  ERROR  MESSAGES 5. Press and release TEST button. 005 Required offset test was not performed. 6. Run warm engine at test speed per TM 5-3895-373- 10. 7. Observe  displayed  value.    Displayed  values  are  in pounds per inch (psi).  Expected display values are: 500 to 850 (650 rpm is normal) 10 psi, minimum 2640 : 40 (2650 rpm is normal) 40 psi , minimum 2-380