TM 5-3895-373-20
REFERENCE INFORMATION
ENGINE FUEL SYSTEM
Refer to TM 5-3895-373-10 for engine starting and equipment operating procedures. Refer to paragraph 2.10 for
connecting and disconnecting STE/ICE-R test set to DCA. Refer to paragraph 1.15 for fuel system operating
principles
CAUTION
Do not try to check the fuel level
with any kind of gauge rod. The fuel
tank filler neck is equipped with a
fuel strainer. Trying to insert a
gauge rod into the filler neck will
damage the strainer.
A faulty fuel level transmitter could be giving you a false
gauge reading. If in doubt about the fuel level, fill the fuel
tank.
+12 VDC to the fuel shutoff solenoid opens fuel flow path
at the input to the fuel injection pump.
FUEL SUPPLY PRESSURE - STE/lCE-R TEST 24
DESCRIPTION
TEST PROCEDURES
Measures the outlet pressure of the fuel pump.
1.
Turn engine off 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
PRE-TEST PROCEDURES
display.
Run confidence test per TM 9-4910-571-12&P. Wait for
4.
Release TEST button and wait for offset value to appear
one minute after turning engine off to run confidence test.
on display. If offset value is within -4.5 and +4.5,
proceed. If not, go to DCA troubleshooting in TM 9-
POSSIBLE ERROR MESSAGES
4910-571-12&P.
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
4.0 psi
@500 to 850 rpm
7.9 psi
@2640 ±40 rpm
6.1 psi
If STE/ICE-R reading does not approach expected value, check transmitter per DCA diagnostics, paragraph 2.21.
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