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OPTION AR-LINKAGE 3966780 - Caterpillar



3966780 OPTION AR-LINKAGE Caterpillar parts 314D LCR OPTION
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Alternative (cross code) number:
CA3966780
396-6780
3966780
Caterpillar 3966780 OPTION AR-LINKAGE

Buy OPTION AR-LINKAGE 3966780 Caterpillar genuine, new aftermarket tractor parts with delivery
EXCAVATOR,

Compatible equipment models: 3966780:

EXCAVATOR  314D LCR   Caterpillar
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Illustration 1 g01379685
Place the key start switch and the disconnect switch in the OFF position.
Take the following measurement at the connector for the right or the left hand sensor harness. Measure the resistance between contact "C" (wire L854-YL) and contact "D" (wire L855-GN).Expected Result:The resistance measurement is 60 6 ohms.Results:
YES - The resistance measurement is 60 6 ohms. Proceed to Test Step 5.
NO - The resistance measurement is NOT 60 6 ohms. Proceed to Test Step 3.Test Step 3. CHECK THE TERMINATION RESISTORS.
Place the key start switch and the disconnect switch in the OFF position.
Disconnect the 3-pin connector for all four of the termination resistors.
Measure the resistance between contact "A" (wire L854-YL) and contact "B" (wire L855-GN) for all of the resistors. Note the resistance.Expected Result:The resistance measurement is 120 12 ohms.Results:
YES - The resistance measurement is 120 12 ohms. Reconnect the resistors. Proceed to Test Step 5.
NO - One or all resistance measurements is NOT 120 12 ohms. Repair: Replace the termination resistor(s) that did not measure 120 12 ohms.STOPTest Step 4. CHECK THE HIGH CIRCUIT OF THE CAN DATA LINK FOR SHORTS
Turn the key start switch and the disconnect switch for the machine to the OFF position.
Disconnect all of the sensors that are connected to the harness.
Laser Receivers
Angle Sensors
Rotation Sensor
Illustration 2 g01189993
Take the following measurements at the connector on the left hand or the right hand knuckle connector. Measure the resistance between the contacts that are listed in Table 1.
Table 1
Harness Connector at Angle Sensor    
Check from Pin

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