TM 5-3895-373-20
REFERENCE INFORMATION
DCA CIRCUIT
OIL FILTER PRESSURE DROP TEST - STE/ICE-R TEST 36
DESCRIPTION
TEST PROCEDURES
Measures the pressure drop across the engine oil filter as
1.
Set TEST SELECT switches to 36.
indicator of filter element clogging.
2.
Shut engine off.
DCA Test Pins: AC and AD
Measurement Range: 0 to 25 psi
3.
Press and hold TEST button until CAL appears on
display.
PRE-TEST PROCEDURES
4.
Release TEST button and wait for offset value to
appear on display. If offset value is within -3.75 to
+3.75 psi, proceed.
Run confidence test per TM 9-4910-571-12&P.
POSSIBLE ERROR MESSAGES
5.
Press and release TEST button.
005
Required offset test was not performed.
6.
Run warm engine at full speed per TM 5-3895-373-
10.
7.
Observe displayed value. Displayed values are in
pounds per inch (psi). Expected display value is 24
psi, maximum.
ENGINE COOLANT TEMPERATURE - STE/ICE-R TEST 38
DESCRIPTION
TEST PROCEDURES
Measures the engine coolant temperature.
1.
Set TEST SELECT switches to 38.
Transducer: 12258933
2.
Set Zero Offset switch on DCA housing to TEST.
DCA Test Pins: n and p
Measurement Range: 120 to 3000F
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 -45 and
+45, proceed.
5.
Press and release TEST button.
POSSIBLE ERROR MESSAGES
005
Required offset test was not performed.
6.
Set Zero Offset switch on DCA housing to RUN.
7.
Observe displayed value. Displayed values are in
degrees Fahrenheit (°F). Expected value, under
normal loading/operating conditions, is between
180° to 200°F.
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