Engine Stalled - Carrier X4 7300 Operation & Service Manual

00041

ENGINE STALLED

• ACTIVATION: The control system is calling for the engine to run, Engine speed sensor is good, and engine
speed is less than 10 rpm; or the A00130 (Check Engine Speed Sensor) alarm is ON, and the Oil Pressure
switch contacts are open.
• UNIT CONTROL: Shutdown and alarm.
• RESET CONDITION: Auto Restart after 15 minutes, or Alarm may be manually reset using the display
mounted keys or by turning the unit off, then back on again.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, clear the
alarm(s). (Refer to Note 1 in
any active alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
1. Check for Additional Alarms
a. If this alarm is activated in conjunction with other alarms (00031, 00072, 00078, 00079, 00080,
00085 or 00086) check F5 & F10. Fuses must be good. Replace fuse as required. Clear alarms,
restart and check for repeat alarm(s).
b. Check for alarm
the same time, generally the engine has run out or is running out of fuel. This causes the engine
speed to surge and drop. Check fuel tank and add fuel as necessary. Check fuel lines between the
fuel tank and the fuel pump inlet for air leakage.
2. Check Start/Run-Off Switch & Circuit
a. Check SROS. Must be in the START/RUN position
b. Check two way communication equipment. Must be set to allow operation and calling for operation.
3. Check Fuel System
a. Check for Alarm
b. Check fuel flow. Unrestricted fuel flow through system. Pump screen(s) clean. Fuel not gelled.
c. Check fuel system prime. No air in fuel system.
4. Check Engine Control Unit (ENCU) and Fuel Speed Actuator (FSA)
a. Check voltage from fuse F3 through PCM−34 and SP−6 to ENCU−22. Verify correct fuse, see
ure 2.7. Must have minimum 11 VDC with the battery connected and SROS in the OFF position.
b. Check voltage from 3MM-9 to ENCU−44. Must have minimum 11 VDC with SROS in the START/
RUN position. If not, energize the run relay output using component test mode (refer to
5.2.4) and retest.
c. Check for ground at ENCU-19 and ENCUGND−A (at the battery negative cable connection). If ground
not good, check connectors and wiring between terminals for damage, moisture or corrosion.
d. Inspect fuel/speed actuator (FSA), engine speed sensor (ENSSN) and engine speed control unit
(ENCU) connector pins & terminals. Verify no physical damage to components, and no damage or
corrosion in connectors.
e. Check resistance & amp draw of FSA. Refer to
f. Check FSA plunger. Must move in and out freely. Refer to engine manual.
Notes Section, page 7-2.) Operate the unit through the appropriate modes to see if
00130 CHECK ENGINE RPM
00001 LOW FUEL LEVEL
SENSOR. When alarms 00130 and 00041 occur at
WARNING. Fill tank as needed.
Section 2.10 for specifications.
7–23
Fig-
Section
62-11637