GAUGE AS-ENGINE OIL PRESSURE 7W0780 - Caterpillar

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(3) "Machines"
Select "Machines" (3) .
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Typical example (4) "Machine" table
Select the required machine from "Machine" table (4) .
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Typical example (5) "System Monitoring" (6) "Machine Mode" (7) "MINEGEM"
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(8) "INVALID"
Scroll to "System Monitoring" (5) and check "Machine Mode" (6) for either "MINEGEM" (7) or "INVALID" (8) .Expected Result:The machine mode is "MINEGEM" (7) .Results:
YES - Machine mode is "MINEGEM".STOP
NO - Machine mode is "INVALID". Proceed to Test Step 2.Test Step 2. Check Voltage at Autonomous Control Enable Switch.
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Typical example (9) Autonomous Control Enable Switch (10) 12-pin connector (11) 12-pin plug connector
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Partial view of the autonomous control enable switch (10) 12-pin connector (12) Pin 1
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(13) Automation Interface Control Module (ICM) (14) 102-pin connector
Move the Barrier Control Panel (BCP) isolation switch to the OFF position. Attach a "Do Not Operate" warning tag or a similar warning tag to the personal lockout on the BCP isolation switch.
Check voltage between pin 1 (12) of 12-pin plug connector (11) and frame ground at Autonomous Control Enable Switch (9) .Note: Only five pins are used in 12-pin plug connector (11) .Expected Result:Measure 24 VDC 1 VDC at pin 1.Results:
YES - Measured 24 VDC 1 VDC at pin 1 of 12-pin plug connector. Proceed to Test Step 4.
NO - Measured voltage less than 24 VDC 1 VDC at pin 1 of 12-pin plug connector.Repair: Check continuity between pin 1 of 12-pin plug connector (11) at Autonomous Control Enable Switch (9) to pin 57 of 102-pin plug (14) connector at Automation ICM (13). If there is not continuity, repair the cable. If there is continuity between pin 1 of 12-pin plug connector and pin 57 of 102-pin plug connector, proceed to Test Step 3.Test Step 3. Check Voltage At The Automation ICM.
Reconnect the 102-pin plug connector at Automation ICM (13)
Check the voltage at pin 57 of 102-pin connector (14) at Automation ICM (13) .Expected Result:Measured 24 VDC 1 VDC at pin 57.Results:
YES - Measured 24 VDC 1 VDC at pin 57. Proceed to Test Step 4.
NO - Measured a voltage less than 24 VDC 1 VDC at pin 57.Repair: Check power supply to Automation ICM (13) .STOPTest Step 4. Check Operation of Autonomous Control Enable Switch Contacts Using the Schematic.
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(9) Autonomous Control Enable Switch (15) A position
Move Autonomous Control Enable Switch (9) to A position (15) .
Check continuity between pin 1 (12) and pins 2 and 3.
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(9) Autonomous Control Enable Switch (16) M position
Move Autonomous Control Enable Switch (9) to M position (16) .
Check continuity between pin 1 (12) and pins 4 and 5.Expected Result:When Autonomous Control Enable Switch (9) is in A position (15), pin 1 (12) should have continuity with pin 2 and pin 3. When Autonomous Control Enable Switch (9) is in M position (16), pin 1 (12) should have continuity with pin 4 and pin 5.Results:
YES - The operation of the Autonomous Control Enable Switch is OK. Proceed to Test Step 5.
NO - The operation of the Autonomous Control Enable