The Takeuchi TB250-2 compact excavator's instrument cluster provides essential status and warning indicators to ensure safe and efficient operation. Understanding these lights helps prevent damage and downtime.
Takeuchi TB250-2 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | Illuminates when a critical fault is detected in the Takeuchi TB250-2, such as engine shut-down level warnings. | Immediately stop the engine and consult the operator's manual for the specific fault code. | |
| Master Caution | AMBER | Lights up for minor system faults or advisory conditions that require attention but not immediate stop. | Check the multi-function display for the specific caution and address as needed. | |
| Check Engine (MIL) | AMBER | Indicates a malfunction in the engine management system of the TB250-2, possibly affecting emissions or performance. | Contact your Takeuchi dealer for diagnostic scanning; continued operation may cause engine damage. | |
| Engine Oil Pressure | RED | Warns that engine oil pressure is below safe operating level for the TB250-2's diesel engine. | Shut off engine immediately and check oil level; if full, have dealer inspect the oil pump or sensor. | |
| Battery / Charging | RED | Indicates the alternator is not charging the battery properly on the TB250-2, or voltage is low. | Check battery connections and alternator belt; if light stays on, replace alternator. | |
| Coolant Temperature | RED | Engine coolant temperature is too high on the TB250-2, risking overheating and component damage. | Stop engine and let cool; check coolant level and radiator for blockages. | |
| Glow Plug / Preheat | AMBER | Illuminates while glow plugs are heating the combustion chambers in cold starting conditions for the TB250-2. | Wait for the light to turn off before cranking the engine. | |
| Low Fuel | AMBER | Fuel level is low in the TB250-2's tank, warning you to refuel soon to avoid air in the system. | Refill the diesel tank as soon as possible. | |
| Water in Fuel | AMBER | Moisture detected in the fuel system of the TB250-2, which can cause injector damage. | Drain the water separator located near the fuel filter; if persists, replace the filter. | |
| Hydraulic System | AMBER | Indicates a hydraulic system fault, such as low oil level or high temperature on the TB250-2. | Check hydraulic oil level and temperature; if low, add recommended fluid; if hot, allow system to cool. | |
| Seat Belt | RED | Reminds the operator to fasten the seat belt before operating the TB250-2. | Buckle the seat belt immediately. | |
| Parking Brake | RED | Indicates the parking brake is engaged on the TB250-2. | Release the parking brake before moving the machine. | |
| High Beam | BLUE | The headlights are set to high beam on the TB250-2. | Dim when oncoming traffic is present. | |
| Work Lights | GREEN | Indicates the additional work lights are on for better visibility at the job site. | Turn off when not needed to save battery. | |
| Beacon / Rotating Light | AMBER | The rotating warning beacon is activated on the TB250-2 for site safety. | Ensure beacon is used when machine is in operation. | |
| Swing / Slew Lock | AMBER | The swing lock is engaged, preventing the upper structure from rotating on the TB250-2. | Release the swing lock before operating the swing function. | |
| Service / Hour Meter | AMBER | Reminds that scheduled maintenance is due based on engine hours on the TB250-2. | Perform the required service per the maintenance interval. | |
| Air Filter | AMBER | Indicates a clogged engine air filter or restriction on the TB250-2, reducing performance. | Clean or replace the air filter element. |
18 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.
Most Important Warning Lights
Engine Overheating
Common causes
- Low coolant level
- Radiator fins clogged with debris
- Faulty thermostat or water pump on TB250-2
What to do
Check coolant level and refill with approved mixture; clean radiator exterior; if persistent, inspect thermostat and water pump.
Hydraulic Oil Overheat
Common causes
- Hydraulic oil level low
- Hydraulic system relief valve stuck
- Excessive load or duty cycle
What to do
Add recommended hydraulic oil after checking level; allow system to idle and cool; reduce workload or check relief settings.
Engine Won't Crank
Common causes
- Battery discharged or connections loose
- Safety interlock (seat belt, neutral) not satisfied
- Starter motor failure
What to do
Test battery voltage and clean terminals; ensure all safety interlocks are engaged; if still no crank, have starter tested.
Loss of Hydraulic Power
Common causes
- Low hydraulic oil level
- Clogged hydraulic filter
- Failed hydraulic pump or control valve
What to do
Check and refill hydraulic oil; replace hydraulic filter; if power remains low, inspect pump and valves.
Frequently Asked Questions
Why does the master warning light flash after starting the TB250-2?
It indicates a system self-check; if it stays on, there is a stored fault code. Use the display to read the code or contact your dealer.
Can I operate the excavator with the hydraulic warning light on?
No, continued operation may cause severe hydraulic damage. Stop and diagnose the issue first.
How often should I check the water-in-fuel separator on the TB250-2?
Drain it daily during pre-start inspection, especially in humid conditions or after refueling.
What does the swing lock light mean and how do I release it?
It means the swing lock is engaged. Move the swing lock lever to the unlocked position near the operator's seat.
Why does the engine oil pressure light come on when I tilt the machine?
Low oil level or oil sloshing away from the pump can trigger the light. Ensure oil is at the proper level.
The check engine light is on but the machine runs fine. What should I do?
Even if performance seems normal, have the fault codes read by a Takeuchi technician to prevent future issues.