The Kubota KX71-3 is a compact excavator renowned for its reliability and versatility on job sites. Its instrument cluster uses a set of essential warning and indicator lights to help operators monitor the machine’s status and react quickly to any issues.
Kubota Excavator KX71-3 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | This light signals a severe system malfunction or critical fault detected by the KX71-3, such as dangerously low oil pressure or overheating. | Stop the excavator immediately and investigate all other warning lights. | |
| Engine Oil Pressure | RED | Indicates that the engine oil pressure in your KX71-3 has dropped below safe levels, risking engine damage. | Shut off the engine at once and check oil level and leaks. | |
| Battery / Charging | RED | Shows the charging system is not supplying power, meaning the KX71-3 is running off battery alone. | Inspect alternator belt and battery connections; avoid prolonged use until resolved. | |
| Coolant Temperature | RED | Warns that engine coolant temperature is too high, risking overheating in the KX71-3. | Stop operation, allow engine to cool, and check coolant level. | |
| Low Fuel | AMBER | Alerts that the fuel level in the KX71-3’s tank is getting low and will soon require refueling. | Plan to refuel as soon as possible to avoid stalling. | |
| Glow Plug / Preheat | AMBER | Indicates the preheating system is active to assist cold starting in the KX71-3’s diesel engine. | Wait for the light to turn off before starting the engine in cold conditions. | |
| Hydraulic System | RED | Signals a critical issue with hydraulic pressure or fluid level, which can impair the KX71-3’s digging functions. | Cease operation and check hydraulic fluid level and hoses for leaks. | |
| Hydraulic Oil | AMBER | Warns that the hydraulic oil level in the reservoir is getting low on the KX71-3. | Top up hydraulic oil to the specified level before continuing work. | |
| Fuel Filter / Water Separator | AMBER | Indicates the fuel filter has accumulated water or debris, risking fuel system performance in the KX71-3. | Drain water from the separator and replace the filter if needed. | |
| Air Filter | AMBER | Shows that the air filter is clogged, restricting airflow to the KX71-3’s engine. | Clean or replace the air filter promptly. | |
| Service / Hour Meter | AMBER | Reminds the operator that scheduled maintenance is due based on the KX71-3’s accumulated engine hours. | Perform required maintenance as outlined in the operator’s manual. | |
| Parking Brake | RED | Indicates the parking brake is engaged, preventing the KX71-3 from moving. | Release the parking brake before attempting to drive. | |
| Work Lights | GREEN | Shows that the KX71-3’s work lights are switched on for improved visibility. | No action needed; lights can be switched off if not required. |
13 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.
Most Important Warning Lights
Engine Oil Pressure Warning
Common causes
- Low engine oil level
- Oil pump failure
- Oil filter blockage
What to do
Shut down the KX71-3 immediately, check the oil level and top up if necessary, and inspect for leaks or filter clogs before restarting.
Coolant Temperature Warning
Common causes
- Coolant leak
- Radiator blockage
- Faulty thermostat
What to do
Turn off the engine, allow it to cool, and inspect coolant level, radiator, and hoses for leaks or obstructions before resuming work.
Hydraulic System Warning
Common causes
- Low hydraulic fluid
- Hydraulic hose leak
- Pump malfunction
What to do
Stop operating the KX71-3, check hydraulic fluid level, and inspect hoses and the pump for leaks or failures; replenish or repair as needed.
Battery / Charging Warning
Common causes
- Loose or corroded battery terminals
- Broken alternator belt
- Defective alternator
What to do
Check and clean battery terminals, inspect the alternator belt, and test the alternator output; replace or repair faulty components as needed.
Frequently Asked Questions
What should I do if the hydraulic oil warning comes on while operating?
Stop the machine, check the hydraulic oil reservoir, and add oil if it's low; inspect for visible leaks before continuing.
Can I keep working if the air filter light is on?
No, a clogged air filter can reduce engine performance and increase wear; clean or replace it as soon as possible.
How do I reset the service/hour meter reminder?
After completing scheduled maintenance, follow the steps in the KX71-3 operator’s manual to reset the hour meter indicator.
Is it safe to operate with the parking brake light on?
No, ensure the parking brake is fully released before moving the KX71-3 to avoid damage or excessive wear.
What does it mean if the glow plug light stays on after starting?
If the glow plug light remains lit after the engine starts, there may be a fault in the preheat system that should be checked by a technician.