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HEAT EXCHANGER 2H9868 - Caterpillar



2H9868 HEAT EXCHANGER Caterpillar parts D379B, D398 HEAT
Rating:
39
Alternative (cross code) number:
CA2H9868
2H-9868
2H9868
Caterpillar 2H9868 HEAT EXCHANGER
Weight: 8 pounds 3 kg.

Buy HEAT EXCHANGER 2H9868 Caterpillar genuine, new aftermarket tractor parts with delivery
GEN SET ENGINE, INDUSTRIAL ENGINE,

Compatible equipment models: 2H9868:

GEN SET ENGINE  D379B  
INDUSTRIAL ENGINE  D398   Caterpillar
Number on catalog scheme: 1
 
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Information:


Illustration 3 g01197978
(1) Primary engine speed/timing sensor (2) Secondary engine speed/timing sensor
Thoroughly inspect the connectors for the engine speed/timing sensors (1) and (2). Refer to Troubleshooting, "Electrical Connectors - Inspect".
Illustration 4 g01285313
Location of the P2 ECM connector (typical left side engine view)
Illustration 5 g01197972
P2 terminal locations for the engine speed sensors (P2-48) Primary engine speed/timing sensor + (P2-49) Primary engine speed/timing sensor - (P2-58) Secondary engine speed/timing sensor + (P2-59) Secondary engine speed/timing sensor -
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the engine speed/timing sensors.
Check the allen head screw on each ECM connector for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Check the harness and the wiring for abrasion and for pinch points from each sensor back to the ECM.Expected Result:All of the connectors, pins and sockets are completely coupled and/or inserted and the harness and wiring are free of corrosion, of abrasion and of pinch points.Results:
OK - The harness and connectors appear to be OK. Proceed to Test Step 4.
Not OK - The connectors and/or wiring are not OK.Repair: Repair the wiring and/or the connectors. Replace parts, if necessary. Ensure that all of the seals are properly in place and ensure that the connectors are completely coupled. Verify that the repair eliminates the problem.STOPTest Step 4. Measure the Sensor Resistance at the ECM Connector
Disconnect the J2/P2 ECM connector.
Use the following procedure to measure the circuit resistance for the primary engine speed/timing sensor:
Measure the resistance between P2-48 (primary engine speed/timing +) and P2-49 (primary engine speed/timing −).Note: Check for an intermittent problem (open or short) by moving the harness while you measure the resistance. Pull the wires that are directly behind the sensors and shake the wires that are directly behind the sensors.Resistance ... 75 to 230 Ohms
Use the following procedure to measure the circuit resistance for the secondary engine speed/timing sensor:
Measure the resistance between P2-58 (secondary engine speed/timing +) and P2-59 (secondary engine speed/timing −).Note: Check for an intermittent problem (open or short) by moving the harness while you measure the resistance. Pull the wires that are directly behind the sensors and shake the wires that are directly behind the sensors.Resistance ... 600 to 1800 OhmsExpected Result:The resistance measurement is within the specifications.Results:
OK - The resistance measurement is within the specifications.Repair: The sensors and the harness are OK.
Temporarily connect a test ECM.
If the problem is resolved with the test ECM, reconnect the suspect ECM.
If the problem returns with the suspect ECM, replace the ECM.STOP
Not OK - The resistance is not within the acceptable range when the circuit resistance is measured through the engine harness. Proceed to Test Step 5.Test Step 5. Measure the Sensor Resistance at the Connector for the Sensor
Disconnect the suspect sensor from the engine harness.
Thoroughly inspect the connector for the suspect engine speed/timing sensor. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Measure the resistance between terminal 1 and terminal 2 of the sensor connector.Expected Result:For the primary engine speed/timing

Caterpillar parts catalog:

Caterpillar parts catalog
D398B ENGINE 66B03561-UP
D379B ENGINE 68B02540-UP
D399 INDUSTRIAL ENGINE 35B00688-UP
D379B GENERATOR SET ENGINE 34Z00001-UP
D398B GENERATOR SET ENGINE 35Z00001-UP
D399 GENERATOR SET ENGINE 36Z00001-UP
D398B ENGINE 66B03561-UP
D379B ENGINE 68B02540-UP
D399 INDUSTRIAL ENGINE 35B00688-UP


Parts heat Caterpillar catalog:

3180029 HEAT SINK AS
3516B, 3516C, C175-16, C175-20, G3516H
2983647 HEAT SINK AS
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, G3512, G3516, SR4
9Y5974 HEAT SINK AS
3208, 3306B, 3406B
7W4470 HEAT SINK AS-NEGATIVE
3304, 3306, 3406, 3406B, G3306
3N4145 HEAT SINK
G3304, G3306, G342C, G379, G398, G399
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