The Bobcat 773 is a versatile skid-steer loader, but like all machinery, it can encounter issues that manifest as error codes. Understanding these codes is crucial for diagnosing and rectifying problems efficiently.
Understanding Bobcat 773 Error Codes
Bobcat machines, including the 773 model, utilize a diagnostic system that displays error codes when the machine detects a fault. These codes are typically shown on the control panel and correspond to specific issues within the machine's systems.
Common Error Codes and Their Meanings
- Code 05-15: Hydrostatic Charge Pressure Low
- Cause: This code indicates that the hydrostatic charge pressure is lower than the required level.
- Possible Solutions:
- Check and replace the hydrostatic charge pressure switch if faulty.
- Inspect the hydrostatic pump and motor for leaks or damage.
- Ensure hydraulic fluid levels are adequate and free from contamination.
- Verify all hydraulic lines and connectors are secure and undamaged.
- Check and replace the hydrostatic charge pressure switch if faulty.
- Cause: This code indicates that the hydrostatic charge pressure is lower than the required level.
- Code 04-14: Engine Oil Pressure Extremely Low
- Cause: The engine oil pressure is critically low, which can lead to engine damage if not addressed promptly.
- Possible Solutions:
- Check the engine oil level and top up if necessary.
- Replace the engine oil pressure sensor if it's malfunctioning.
- Inspect the oil pump for proper operation.
- Ensure there are no blockages in the oil passages.
- Check the engine oil level and top up if necessary.
- Cause: The engine oil pressure is critically low, which can lead to engine damage if not addressed promptly.
- Code 12-23: Seat Bar Sensor Fault
- Cause: This code appears when the seat bar sensor detects an issue, often due to wiring problems.
- Possible Solutions:
- Inspect the seat bar sensor wiring for loose connections or corrosion.
- Clean and secure all connectors related to the seat bar sensor.
- Replace the seat bar sensor if it's found to be defective.
- Inspect the seat bar sensor wiring for loose connections or corrosion.
- Cause: This code appears when the seat bar sensor detects an issue, often due to wiring problems.
- Code 05-14: Hydraulic Charge Pressure Extremely Low
- Cause: Similar to code 05-15, this code indicates an extremely low hydraulic charge pressure.
- Possible Solutions:
- Check hydraulic fluid levels and top up if necessary.
- Inspect the hydraulic charge pressure sensor for proper operation.
- Examine hydraulic lines for leaks or blockages.
- Ensure the hydraulic pump is functioning correctly.
- Check hydraulic fluid levels and top up if necessary.
- Cause: Similar to code 05-15, this code indicates an extremely low hydraulic charge pressure.
- Battery and Electrical System: Ensure the battery is fully charged and all electrical connections are clean and secure. Weak batteries or corroded terminals can cause erratic sensor readings.
- Sensor Calibration: Some error codes may require sensor calibration. Refer to the Bobcat 773 service manual for specific calibration procedures.
- Control Module Reset: After addressing the underlying issue, reset the control module to clear the error code. This can often be done by disconnecting the battery for a few minutes.
Regular maintenance can help prevent many of the issues that lead to error codes:
- Hydraulic System: Regularly check hydraulic fluid levels and replace filters as recommended in the service manual.
- Engine Oil: Change engine oil and replace the oil filter at intervals specified by Bobcat.
- Electrical System: Inspect wiring and connectors for signs of wear or corrosion, and address any issues promptly.
Understanding and addressing error codes on the Bobcat 773 is essential for maintaining the machine's performance and longevity. By following the troubleshooting steps outlined above and adhering to a regular maintenance schedule, operators can minimize downtime and ensure their equipment operates efficiently. Always consult the Bobcat 773 service manual for detailed procedures and specifications.
