Komatsu PC130-7 Hydraulic Excavator Shop Manual SEBM036301

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Komatsu PC130-7 Hydraulic Excavator Shop Manual SEBM036301 - Image 5

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Komatsu PC130-7 Hydraulic Excavator Shop Manual SEBM036301

$40.00

Type Of Manual: Shop Manual
Manual ID: SEBM036301
Format: PDF
Size: 9.9MB
Number of Pages: 342

Category: Komatsu Shop Manual PDF

Model List:
- PC130-7 Hydraulic Excavator

1. .pdf
1.1. POINTS TO REMEMBER WHEN TROUBLESHOOTING
1.1.1. When carrying out troubleshooting, do not hurry to disassemble the components.
1.1.2. Points to ask user or operator
1.1.2.1. Have any other problems occurred apart from the problem that has been reported
1.1.2.2. Was there anything strange about the machine before the failure occurred
1.1.2.3. Did the failure occur suddenly, or were there problems with the machine condition before this
1.1.2.4. Under what conditions did the failure occur
1.1.2.5. Had any repairs been carried out before the failure
1.1.2.6. Has the same kind of failure occurred before
1.1.3. Check before troubleshooting
1.1.3.1. Check the oil level
1.1.3.2. Check for any external leakage of oil from the piping or hydraulic equipment.
1.1.3.3. Check the travel of the control levers.
1.1.3.4. Check the stroke of the control valve spool.
1.1.3.5. Other maintenance items can be checked externally, so check any item that is considered to be …
1.1.4. Confirming failure
1.1.5. Troubleshooting
1.1.5.1. Start from the simple points.
1.1.5.2. Start from the most likely points.
1.1.5.3. Investigate other related parts or information.
1.1.6. Measures to remove root cause of failure
1.2. SEQUENCE OF EVENTS IN TROUBLESHOOTING
1.3. POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE
1.3.1. To maintain the performance of the machine over a long period, and to prevent failures or other t…
1.3.1.1. Points to remember when handling electric equipment
1.3.1.1.1. Handling wiring harnesses and connectors
1.3.1.1.1.1. Defective contact of connectors (defective contact between male and female)
1.3.1.1.1.2. Defective crimping or soldering of connectors
1.3.1.1.1.3. Disconnections in wiring
1.3.1.1.1.4. Highpressure water entering connector
1.3.1.1.1.5. Oil or dirt stuck to connector
1.3.1.1.2. Removing, installing, and drying connectors and wiring harnesses
1.3.1.1.2.1. Hold the connectors when disconnecting.
1.3.1.1.2.2. When removing from clips
1.3.1.1.2.3. Action to take after removing connectors
1.3.1.1.2.4. Check the connector visually.
1.3.1.1.2.4.1. Check that there is no oil, dirt, or water stuck to the connector pins (mating portion).
1.3.1.1.2.4.2. Check that there is no deformation, defective contact, corrosion, or damage to the connector p…
1.3.1.1.2.4.3. Check that there is no damage or breakage to the outside of the connector.
1.3.1.1.2.5. Fix the connector securely.
1.3.1.1.2.6. Correct any protrusion of the boot and any misalignment of the wiring harness
1.3.1.1.2.7. If the connector clamp has been removed, be sure to return it to its original position. Check …
1.3.1.1.2.8. Disconnect the connector and wipe off the water with a dry cloth.
1.3.1.1.2.9. Dry the inside of the connector with a dryer.
1.3.1.1.2.10. Carry out a continuity test on the connector.
1.3.1.1.3. Handling control box
1.3.1.1.3.1. The control box contains a microcomputer and electronic control circuits. These control all of…
1.3.1.1.3.2. Do not open the cover of the control box unless necessary.
1.3.1.1.3.3. Do not place objects on top of the control box.
1.3.1.1.3.4. Cover the control connectors with tape or a vinyl bag.
1.3.1.1.3.5. During rainy weather, do not leave the control box in a place where it is exposed to rain.
1.3.1.1.3.6. Do not place the control box on oil, water, or soil, or in any hot place, even for a short time.
1.3.1.1.3.7. Precautions when carrying out arc welding
1.3.1.2. Points to remember when troubleshooting electric circuits
1.3.1.2.1. Always turn the power OFF before disconnecting or connect connectors.
1.3.1.2.2. Before carrying out troubleshooting, check that all the related connectors are properly inserted.
1.3.1.2.3. Always connect any disconnected connectors before going on to the next step.
1.3.1.2.4. When carrying out troubleshooting of circuits (measuring the voltage, resistance, continuity, …
1.3.1.3. Points to remember when handling hydraulic equipment
1.3.2. With the increase in pressure and precision of hydraulic equipment, the most common cause of fail…
1.3.2.1. Be careful of the operating environment.
1.3.2.2. Disassembly and maintenance work in the field
1.3.2.3. Sealing openings
1.3.2.4. Do not let any dirt or dust get in during refilling operations.
1.3.2.5. Change hydraulic oil when the temperature is high.
1.3.2.6. Flushing operations
1.3.2.7. Cleaning operations
1.4. Inspection before troubleshooting
1.5. Classification of and procedures for troubleshooting
1.5.1. If a phenomenon looking like a trouble occurs in the machine, select a proper troubleshooting No….
1.5.1.1. Procedure for troubleshooting to be taken when user code is displayed on monitor panel
1.5.1.2. Procedure for troubleshooting when electrical system error code or mechanical system error cod…
1.5.1.3. Procedure for troubleshooting to be taken when user code is not displayed and error history is…
1.6. Connector arrangement drawing and electric circuit diagram of each system
1.7. CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
1.7.1. The pin No. is also marked on the connector (electric wire insertion end)
1.7.2. The pin No. is also marked on the connector (electric wire insertion end)
1.7.3. The pin No. is also marked on the connector (electric wire insertion end)
1.7.4. The pin No. is also marked on the connector (electric wire insertion end)
1.7.5. The pin No. is also marked on the connector (electric wire insertion end)
1.7.6. The pin No. is also marked on the connector (electric wire insertion end)
1.7.7. The pin No. is also marked on the connector (electric wire insertion end)
1.7.8. R 7996019060
1.7.9. 7996019070
1.7.10. 7996019080
1.7.11. R 7996019090
1.7.12. R 7996019110
1.7.13. 7996019120
1.7.14. 7996019130
1.7.15. R 7996019140
1.7.16. The pin No. is also marked on the connector (electric wire insertion end)
1.7.17. The pin No. is also marked on the connector (electric wire insertion end)
1.7.18. The pin No. is also marked on the connector (electric wire insertion end)
1.8. TBRANCH BOX AND TBRANCH TABLE
1.8.1. TROUBLESHOOTING

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