The Kubota KX057-4 is a compact yet powerful excavator designed for versatile jobsite demands, featuring an advanced digital instrument panel to monitor machine status. Its indicator lights provide operators with immediate feedback about key systems, helping prevent downtime and ensure safe operation.
Kubota Excavator KX057-4 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | A critical malfunction or hazardous condition has been detected on the KX057-4, such as severe engine or hydraulic failure. | Safely stop the excavator and investigate the source immediately. | |
| Master Caution | AMBER | A general caution alert has been triggered, often due to non-critical but important issues like fluid levels or filter warnings. | Check the instrument panel for further details and address the indicated concerns soon. | |
| Check Engine (MIL) | AMBER | The engine control unit on the KX057-4 has detected a fault affecting emissions or performance. | Continue operation with caution and schedule diagnostics as soon as possible. | |
| Engine Oil Pressure | RED | Engine oil pressure has dropped below safe levels, risking severe engine damage. | Shut off the engine immediately and check oil level and system for leaks. | |
| Battery / Charging | RED | The charging system is not supplying adequate power to the battery. | Inspect the alternator, belt, and battery connections before resuming work. | |
| Coolant Temperature | RED | Engine coolant temperature is dangerously high, risking overheating damage. | Stop the engine, allow it to cool, and check coolant level and radiator. | |
| Parking Brake | RED | The parking brake is engaged, preventing movement of the KX057-4. | Release the parking brake before operating the excavator. | |
| Glow Plug / Preheat | AMBER | Glow plugs are active to preheat the engine for cold starting. | Wait for the light to turn off before cranking the engine. | |
| DPF / Regeneration | AMBER | The diesel particulate filter is regenerating to clear soot buildup. | Allow the regeneration cycle to complete without interruption. | |
| DEF / AdBlue | AMBER | DEF (AdBlue) level is low, risking emission system malfunction. | Refill the DEF tank at the next opportunity to avoid power reduction. | |
| Water in Fuel | AMBER | Water has been detected in the fuel separator, risking injector damage. | Drain the water separator promptly to protect the fuel system. | |
| Low Fuel | AMBER | The fuel tank is nearing empty, risking engine stall. | Refuel the KX057-4 before continuing with operations. | |
| Hydraulic System | AMBER | A hydraulic system issue has been detected, such as low pressure or filter restriction. | Inspect hydraulic fluid level and filters; address any leaks or restrictions. | |
| Hydraulic Oil | AMBER | Hydraulic oil level or temperature is outside the recommended range. | Check hydraulic oil level and top up or cool down as needed. | |
| Air Filter | AMBER | The air filter is clogged or heavily restricted, affecting engine performance. | Clean or replace the air filter element to restore airflow. | |
| Fuel Filter / Water Separator | AMBER | The fuel filter is clogged or the water separator needs draining. | Replace the filter or drain water to prevent fuel delivery problems. | |
| Service / Hour Meter | AMBER | Scheduled maintenance is due based on engine hours. | Perform required maintenance as indicated by the service schedule. | |
| Work Lights | GREEN | Work lights are switched on for improved visibility. | No action needed unless lights are not required. | |
| Beacon / Rotating Light | AMBER | The beacon light is active, signaling operation in progress. | Ensure beacon is functioning when operating in public or shared areas. | |
| Swing / Slew Lock | AMBER | The swing lock is engaged, restricting upper structure rotation. | Disengage swing lock before rotating the upper frame. | |
| Overload / Capacity | RED | The KX057-4 has exceeded its rated lifting capacity. | Lower the load immediately and reassess lifting requirements. |
21 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.
Most Important Warning Lights
Engine Oil Pressure
Common causes
- Oil level too low
- Oil pump failure
- Oil filter blockage
What to do
Immediately shut down the engine, check the oil level, and inspect for leaks or blockages. Only restart after resolving the issue to prevent engine damage.
Coolant Temperature
Common causes
- Coolant loss
- Radiator blockage
- Thermostat malfunction
What to do
Stop the engine and allow it to cool. Check coolant level and radiator for obstructions; refill or repair as needed before resuming work.
Overload / Capacity
Common causes
- Lifting load beyond rated capacity
- Incorrect attachment use
- Improper load distribution
What to do
Lower the load immediately. Review the KX057-4 load chart and ensure correct attachment and technique are used for safe operation.
Battery / Charging
Common causes
- Alternator failure
- Loose or corroded battery terminals
- Broken drive belt
What to do
Inspect the alternator, check and clean battery terminals, and verify the belt is intact. Replace or repair any faulty components before further use.
Hydraulic System
Common causes
- Low hydraulic fluid
- Contaminated oil
- Hydraulic filter blockage
What to do
Check and top up hydraulic fluid, replace filters if needed, and inspect for contamination or leaks to maintain smooth operation.
Frequently Asked Questions
What should I do if the DPF regeneration light stays on?
Allow the KX057-4 to complete its regeneration cycle without shutting down the engine. If the light remains on after regeneration, consult a Kubota technician.
Why is my hydraulic oil warning light on even after topping up the fluid?
There may be a filter blockage or a sensor issue. Inspect and replace the hydraulic filter if necessary, and check for system leaks.
How do I reset the service/hour meter light?
After performing scheduled maintenance, follow the procedure in the operator’s manual to reset the service interval via the instrument panel.
What does it mean if the water in fuel light appears?
It indicates water has collected in the separator. Drain the separator immediately to avoid injector or fuel system damage.
Can I operate the excavator if the master caution light is on?
You may continue to operate, but you should check the display for details and address the underlying issue at the next safe opportunity.