0377311 CLAMPSCREW ASSEMBLY JOHNSON
10E74G, 10E75C, 10E76G, 15E74G, 15E75C, 15E76A, 20R69B, 20R70C, 20R71S, 20R72R, 20R73A, 25E72R, 25E73A, 25E74M, 25E75B, 25E76E, 25R69B, 25R70C, 25R71S, 35E76G, 9R69S, 9R70A, 9R71R, 9R72M, 9R73B, FD-22A, MQ-14D
CLAMPSCREW
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Rating:
Number on catalog scheme: 46
Compatible models:
BRP JOHNSON entire parts catalog list:
- EXHAUST HOUSING » 0377311
10E76G, 10E76H, 10E76R, 10EL76G, 10EL76H, 10EL76R, 10R76G, 10R76H, 10R76R, 10RL76G, 10RL76H, 10RL76R 1976
15E74G, 15E74S, 15EL74G, 15EL74S, 15R74G, 15R74S, 15RL74G, 15RL74S 1974
15E75C, 15EL75C, 15R75C, 15RL75C 1975
15E76A, 15E76R, 15EL76A, 15EL76R, 15R76A, 15R76R, 15RL76A, 15RL76R 1976
20R69B, 20R69D, 20RL69B, 20RL69D 1969
20R70C, 20R70E, 20RL70C, 20RL70E 1970
20R71S, 20RL71S 1971
20R72R, 20RL72R 1972
20R73A, 20RL73A 1973
25E72R, 25EL72R, 25R72R, 25RL72R 1972
25E73A, 25EL73A, 25R73A, 25RL73A 1973
25E74M, 25EL74M, 25R74M, 25RL74M 1974
25E75B, 25EL75B, 25R75B, 25RL75B 1975
25E76E, 25EL76E, 25R76E, 25RL76E 1976
25R69B, 25R69D, 25RL69B, 25RL69D 1969
25R70C, 25R70E, 25RL70C, 25RL70E 1970
25R71S, 25RL71S 1971
35E76G, 35E76S, 35EL76G, 35EL76S, 35R76G, 35R76S, 35RL76G, 35RL76S 1976
9R69S, 9RL69S 1969
9R70A, 9R70C, 9RL70A, 9RL70C 1970
9R71R, 9RL71R 1971
9R72M, 9RL72M 1972
9R73B, 9RL73B 1973
FD-22A, FD-22E, FD-22M, FDL-22A, FDL-22E, FDL-22M 1968
MQ-14D, MQ-14E, MQL-14D, MQL-14E 1968
Information:
Check Connectors for Moisture and Corrosion
Inspect all the harnesses. Ensure that the routing of the wiring harness allows the wires to enter the face of each connector at a perpendicular angle. Otherwise, the wire will deform the seal bore. This will create a path for the entrance of moisture. Verify that the seals for the wires are sealing correctly. Ensure that the sealing plugs are in place. If any of the plugs are missing, replace the plug. Ensure that the plugs are inserted correctly into the connector.
Illustration 1 g01131019
Seal for a three-pin connector (typical example)Disconnect the suspect connector and inspect the connector seal. Ensure that the seal is in good condition. If necessary, replace the connector.Thoroughly inspect the connectors for evidence of moisture entry.Note: It is normal to see some minor seal abrasion on connector seals. Minor seal abrasion will not allow the entry of moisture.If moisture or corrosion is evident in the connector, the source of the moisture entry must be found and the source of the moisture entry must be repaired. If the source of the moisture entry is not repaired, the fault will recur. Simply drying the connector will not fix the fault. Check the following items for the possible moisture entry path:
Missing seals
Incorrectly installed seals
Nicks in exposed insulation
Improperly mated connectorsMoisture can also travel to a connector through the inside of a wire. If moisture is found in a connector, thoroughly check the connector harness for damage. Also check other connectors that share the harness for moisture.Check the Wires for Damage to the Insulation
Carefully inspect each wire for signs of abrasion, nicks and cuts.Inspect the wires for the following conditions:
Exposed insulation
Rubbing of a wire against the engine
Rubbing of a wire against a sharp pointCheck all of the fasteners for the harness and the ECM in order to verify that the harness is correctly secured. Also check all of the fasteners in order to verify that the harness is not compressed. Pull back the harness sleeves in order to check for a flattened portion of wire. A fastener that has been overtightened flattens the harness. This damages the wires that are inside the harness.Inspect the Connector Terminals
Visually inspect each terminal in the connector. Verify that the terminals are not damaged. Verify that the terminals are correctly aligned in the connector and verify that the terminals are correctly located in the connector.Perform a Pull Test on Each Wire Terminal Connection
Illustration 2 g01237430
A typical example of the lock wedge. (1) Locking wedgeEnsure that the locking wedge for the connector is installed correctly. Terminals cannot be retained inside the connector if the locking wedge is not installed correctly.Perform the 45 N (10 lb) pull test on each wire. Each terminal and each connector should easily withstand 45 N (10 lb) of tension and each wire should remain in the connector body. This test checks whether the wire was correctly crimped in the terminal and whether the terminal was correctly inserted into the connector.Check Individual Pin Retention into the Socket
Illustration 3 g01687376
Diagram for testing pin retentionVerify that the sockets provide good retention for the pins. Insert a new pin into each socket one at a time in order to check for a good grip on the pin by the socket.Check the Locking Mechanism of the Connectors
Ensure that the connectors lock correctly. After you lock the connectors, ensure that the two halves cannot be pulled apart.Verify that the latch tab of the connector is correctly latched. Also verify that the latch tab of the connector returns to the locked position.Perform the Wiggle Test on the Caterpillar Electronic Technician (ET)
Select the "Wiggle Test" from the diagnostic tests on Cat ET.Choose the appropriate group of parameters to monitor.Press the "Start" button. Wiggle the wiring harness in order to reproduce intermittent faults.If an intermittent fault exists, the status will be highlighted and an audible beep will be heard.
Inspect all the harnesses. Ensure that the routing of the wiring harness allows the wires to enter the face of each connector at a perpendicular angle. Otherwise, the wire will deform the seal bore. This will create a path for the entrance of moisture. Verify that the seals for the wires are sealing correctly. Ensure that the sealing plugs are in place. If any of the plugs are missing, replace the plug. Ensure that the plugs are inserted correctly into the connector.
Illustration 1 g01131019
Seal for a three-pin connector (typical example)Disconnect the suspect connector and inspect the connector seal. Ensure that the seal is in good condition. If necessary, replace the connector.Thoroughly inspect the connectors for evidence of moisture entry.Note: It is normal to see some minor seal abrasion on connector seals. Minor seal abrasion will not allow the entry of moisture.If moisture or corrosion is evident in the connector, the source of the moisture entry must be found and the source of the moisture entry must be repaired. If the source of the moisture entry is not repaired, the fault will recur. Simply drying the connector will not fix the fault. Check the following items for the possible moisture entry path:
Missing seals
Incorrectly installed seals
Nicks in exposed insulation
Improperly mated connectorsMoisture can also travel to a connector through the inside of a wire. If moisture is found in a connector, thoroughly check the connector harness for damage. Also check other connectors that share the harness for moisture.Check the Wires for Damage to the Insulation
Carefully inspect each wire for signs of abrasion, nicks and cuts.Inspect the wires for the following conditions:
Exposed insulation
Rubbing of a wire against the engine
Rubbing of a wire against a sharp pointCheck all of the fasteners for the harness and the ECM in order to verify that the harness is correctly secured. Also check all of the fasteners in order to verify that the harness is not compressed. Pull back the harness sleeves in order to check for a flattened portion of wire. A fastener that has been overtightened flattens the harness. This damages the wires that are inside the harness.Inspect the Connector Terminals
Visually inspect each terminal in the connector. Verify that the terminals are not damaged. Verify that the terminals are correctly aligned in the connector and verify that the terminals are correctly located in the connector.Perform a Pull Test on Each Wire Terminal Connection
Illustration 2 g01237430
A typical example of the lock wedge. (1) Locking wedgeEnsure that the locking wedge for the connector is installed correctly. Terminals cannot be retained inside the connector if the locking wedge is not installed correctly.Perform the 45 N (10 lb) pull test on each wire. Each terminal and each connector should easily withstand 45 N (10 lb) of tension and each wire should remain in the connector body. This test checks whether the wire was correctly crimped in the terminal and whether the terminal was correctly inserted into the connector.Check Individual Pin Retention into the Socket
Illustration 3 g01687376
Diagram for testing pin retentionVerify that the sockets provide good retention for the pins. Insert a new pin into each socket one at a time in order to check for a good grip on the pin by the socket.Check the Locking Mechanism of the Connectors
Ensure that the connectors lock correctly. After you lock the connectors, ensure that the two halves cannot be pulled apart.Verify that the latch tab of the connector is correctly latched. Also verify that the latch tab of the connector returns to the locked position.Perform the Wiggle Test on the Caterpillar Electronic Technician (ET)
Select the "Wiggle Test" from the diagnostic tests on Cat ET.Choose the appropriate group of parameters to monitor.Press the "Start" button. Wiggle the wiring harness in order to reproduce intermittent faults.If an intermittent fault exists, the status will be highlighted and an audible beep will be heard.