3940525 LINES GP-FUEL INJECTION Caterpillar parts
323D2 L, 535D, 545D, 924K, 930K, 938K, 950 GC, C7.1, D6K2
Rating:
Alternative (cross code) number:
CA3940525
394-0525
3940525
CA3940525
394-0525
3940525
Weight: 0.94 pounds 0 kg.
EXCAVATOR, WHEEL SKIDDER,
Compatible equipment models: 3940525:
Information:
In addition to this procedure, the auto retarder pressure circuit can be checked by monitoring the auto retarder indicator of the display. If the indicator is "On" that means the auto retarding or manual retarding is active. If the indicator is "Off" that means the auto retarding or manual retarding is not active.Note: In addition to this procedure, the status of the auto retarder pressure circuit is shown when the display is in the input status mode (mode 2).This diagnostic code is recorded when the ARC detects the absence of pressure for the retarder pressure (open switch). Simultaneously, the supply solenoid is activated and the control solenoid is activated. The auto retarder pressure switch is activated. The circuit of the retarder pressure switch connects to connector A-A21 (wire D992-PU-16).Note: Ensure that the CID 0714 FMI 03 is present and active.
CHECK THE SWITCH.
Turn the disconnect switch and the key start switch to the ON position.
Place the display into the detected fault mode (mode 1).
Ensure that the diagnostic code is active.
Observe the "On/Off" status of the fault present indicator.
Temporarily connect wire (D992-PU-16) to wire (202-BK-16) at the pressure switch. Expected Result: The diagnostic code remains active. The diagnostic code does NOT change.Results:
OK: The diagnostic code remains in the active state. The diagnostic code does NOT change. The machine harness is faulty or the ARC is faulty. Proceed to Step 2.
NO: The diagnostic code changes from being active to being NOT active. The pressure switch is failed. Repeat this test "CHECK THE SWITCH" in order to verify that the switch has failed. Replace the AUTO retarder pressure switch. STOP.
CHECK THE GROUND CIRCUIT.
Remove the wire connections of the previous test "CHECK THE SWITCH".
Observe the status of the diagnostic code. The diagnostic code is active or the diagnostic code is NOT active.
At the pressure switch, place a jumper from wire 202-BK-16 to frame ground.
View the status of the diagnostic code.Expected Result: The diagnostic code remains active.Results:
OK: The diagnostic code remains active. Wire D992-PU-16 or the ARC is faulty. Proceed to Step 3.
NO: The present indicator changes from "On" to "Off". The diagnostic code is NO longer active. Wire 202-BK-16 is open in the machine harness. The open is between the pressure switch and frame ground. Repair the machine harness or replace the machine harness. STOP.
CHECK THE SWITCH CIRCUIT.
Turn the key start switch and the disconnect switch to the OFF position.
The jumper of the previous test "CHECK THE GROUND CIRCUIT" remains intact.
Disconnect the machine harness (A) from the ARC.
Measure the resistance between contact A-A16 (wire D992-PU-16) and frame ground.Expected Result: The resistance is less than 5000 ohms.Results:
OK: The resistance is less than 5000 ohms. The resistance of the harness circuit is correct. It is unlikely that the ARC is faulty. Exit this procedure and perform a check of the CID and the FMI again. Replace the ARC, if the cause of the diagnostic code is not found. See Testing And Adjusting, "ARC - Replace". STOP.
NO: The resistance is greater than 5000 ohms. The machine
CHECK THE SWITCH.
Turn the disconnect switch and the key start switch to the ON position.
Place the display into the detected fault mode (mode 1).
Ensure that the diagnostic code is active.
Observe the "On/Off" status of the fault present indicator.
Temporarily connect wire (D992-PU-16) to wire (202-BK-16) at the pressure switch. Expected Result: The diagnostic code remains active. The diagnostic code does NOT change.Results:
OK: The diagnostic code remains in the active state. The diagnostic code does NOT change. The machine harness is faulty or the ARC is faulty. Proceed to Step 2.
NO: The diagnostic code changes from being active to being NOT active. The pressure switch is failed. Repeat this test "CHECK THE SWITCH" in order to verify that the switch has failed. Replace the AUTO retarder pressure switch. STOP.
CHECK THE GROUND CIRCUIT.
Remove the wire connections of the previous test "CHECK THE SWITCH".
Observe the status of the diagnostic code. The diagnostic code is active or the diagnostic code is NOT active.
At the pressure switch, place a jumper from wire 202-BK-16 to frame ground.
View the status of the diagnostic code.Expected Result: The diagnostic code remains active.Results:
OK: The diagnostic code remains active. Wire D992-PU-16 or the ARC is faulty. Proceed to Step 3.
NO: The present indicator changes from "On" to "Off". The diagnostic code is NO longer active. Wire 202-BK-16 is open in the machine harness. The open is between the pressure switch and frame ground. Repair the machine harness or replace the machine harness. STOP.
CHECK THE SWITCH CIRCUIT.
Turn the key start switch and the disconnect switch to the OFF position.
The jumper of the previous test "CHECK THE GROUND CIRCUIT" remains intact.
Disconnect the machine harness (A) from the ARC.
Measure the resistance between contact A-A16 (wire D992-PU-16) and frame ground.Expected Result: The resistance is less than 5000 ohms.Results:
OK: The resistance is less than 5000 ohms. The resistance of the harness circuit is correct. It is unlikely that the ARC is faulty. Exit this procedure and perform a check of the CID and the FMI again. Replace the ARC, if the cause of the diagnostic code is not found. See Testing And Adjusting, "ARC - Replace". STOP.
NO: The resistance is greater than 5000 ohms. The machine
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Cat SIS web machinery list:
Parts lines Caterpillar catalog:
3928660
LINES GP-FUEL
924K, 930K, 938K
924K, 930K, 938K
3874019
LINES GP-HEATER
924K, 930K, 938K
924K, 930K, 938K
3216120
LINES GP-FUEL INJECTION
120M, 12M, C6.6, C7.1
120M, 12M, C6.6, C7.1
3893789
LINES GP-FUEL
535D, 545D, C7.1
535D, 545D, C7.1
4252178
LINES GP-FUEL
323D2 L, 535D, 545D, 924K, 930K, 938K, 950 GC, C7.1, D6K2
323D2 L, 535D, 545D, 924K, 930K, 938K, 950 GC, C7.1, D6K2
4404599
LINES GP-ROTATOR
SAT318
SAT318
4404600
LINES GP-HYDRAULIC
SAT318
SAT318
4398739
LINES GP-SAW
SAT223
SAT223
3798906
LINES GP-HYDRAULIC
336D L
336D L
3376538
LINES GP-HYDRAULIC
336D L
336D L