PLATE-WEAR 3245237 - Caterpillar

Illustration 1 g06126615
Aftertreatment Regeneration Device (ARD) fuel pump
(1) Electrical connector
(2) Fuel outlet
(3) Fuel return to tank
(4) Fuel inlet
(5) Fuel inlet (alternative)
(6) Fuel inlet (alternative)
Illustration 2 g06126617
ARD Combustion Head
(7) ARD pilot filter connector
Illustration 3 g06126629
ARD Fuel Manifold
(8) Pilot fuel control valveNote: After using the electronic service tool to clear a 3480-xx diagnostic trouble code, the keyswitch must also be cycled.Complete the procedure in the order in which the steps are listed.
Table 3
Troubleshooting Test Steps Values Results
1. Perform an ARD Ignition Test and Record the Enhanced Troubleshooting Indicator (ETI)
A. Establish communication between the electronic service tool and the Electronic Control Module (ECM). Refer to Troubleshooting, "Electronic Service Tools", if necessary.
B. Perform an ARD Ignition Test using the electronic service tool. Refer to System Operation and Testing and Adjusting, "ARD Fuel System - Test".
C. The ETI code is located in the "Active Events" or "Logged Events" screen in the electronic service tool. Record the Enhanced Troubleshooting Indicator (ETI) code.
ETI codes are not available for (2) codes.
ETI Code
Result : There is not an ETI for the diagnostic code.
Proceed to Test Step 2.
Result : The ETI code was recorded.
Proceed to Test Step 2.
Note: The ARD Ignition Test cannot be performed if the DPF soot loading is above 80%. When the DPF soot loading is above 80%, the Manual DPF Regeneration must be performed using the electronic service tool.
Table 4
Troubleshooting Test Steps Values Results
2. Check the Current Flow to the Heating Element in the ARD Combustion Head
A. Start the engine. Use a clamp-on ammeter to check the current flow to the heater.
Current Check
Result: The current flow is between 7.0 A and 14 A for a 12 V system. The current flow is between 3.5 A and 7 A for a 24 V system.
The current flow is OK. Proceed to Test Step 3.
Result: The current flow is not between 7.0 A and 14 A for a 12 V system. The current flow is not between 3.5 A and 7 A for a 24 V system.
Repair : There may be a problem with the ARD nozzle. Refer to Troubleshooting, "ARD Nozzle Heater - Test".
STOP.
3. Check the ARD Fuel Pump
A. Turn the engine OFF.
B. Disconnect the fuel outlet line (2) from the ARD fuel pump. Refer to Illustration 1.
C. Install the required parts listed in Table 3 at the outlet port of the pump.
D. Start the engine.
E. Establish communications between the electronic service tool and the Engine ECM.
F. Clear the active event code.
G. Select "Aftertreatment Fuel Pump Relay Override" in the electronic service tool to activate the pump.
H. Record the pressure from the pressure gauge.
I. Deactivate the override.
J. Turn the keyswitch to the OFF position.
Pressure check
Result: The pressure reading is not between 1780 kPa (258 psi) and 2020 kPa (292 psi).
Repair : Replace the ARD fuel pump. Refer to Disassembly and Assembly, Fuel Pump (ARD) - Remove and Install.
Result: The pressure reading is between 1780 kPa (258 psi) and 2020 kPa (292 psi).
If a 3480-15