The Takeuchi TB240 is a compact excavator equipped with a modern instrument cluster to monitor machine health and performance. Its dashboard uses a variety of indicator lights to alert operators to specific machine conditions and required maintenance. Understanding these symbols helps ensure the TB240 operates safely and efficiently.
Takeuchi TB240 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | A critical fault in the TB240 has been detected, such as severe engine or hydraulic issue. | Shut down the excavator immediately and investigate the cause before restarting. | |
| Master Caution | AMBER | A non-critical fault or warning has been logged by the TB240's monitoring system. | Review the display for additional details and address the warning as soon as possible. | |
| Check Engine (MIL) | AMBER | The engine control unit has detected a fault affecting emissions or performance on your TB240. | Schedule diagnostic service to prevent further engine issues. | |
| Engine Oil Pressure | RED | Engine oil pressure in the TB240 has dropped below safe operating levels. | Stop the engine immediately and check oil level and condition before restarting. | |
| Battery / Charging | RED | The charging system is not maintaining battery voltage in the TB240. | Inspect alternator, battery connections, and drive belt for faults. | |
| Coolant Temperature | RED | Engine coolant temperature has exceeded safe limits in the TB240. | Turn off the machine, allow it to cool, and check coolant level and radiator. | |
| Hydraulic System | AMBER | A hydraulic system fault has been detected, such as low fluid or filter restriction. | Inspect hydraulic fluid level and filters; address any leaks or issues. | |
| Low Fuel | AMBER | Fuel level is low and the TB240 will soon require refueling. | Plan to refuel soon to avoid stalling during operation. | |
| DPF / Regeneration | AMBER | The diesel particulate filter requires regeneration due to soot accumulation. | Follow on-screen prompts to initiate or complete the regeneration cycle. | |
| DEF / AdBlue | AMBER | DEF (Diesel Exhaust Fluid) level is low or there is a system fault. | Top up DEF tank and check for any related system errors. | |
| Water in Fuel | AMBER | The water separator has detected excess water in the TB240's fuel system. | Drain the water separator to prevent engine damage. | |
| Air Filter | AMBER | Air filter restriction detected; airflow to the engine is impeded. | Inspect and clean or replace the air filter as needed. | |
| Fuel Filter / Water Separator | AMBER | Fuel filter is restricted or water separator requires service. | Replace the fuel filter and drain water separator promptly. | |
| Service / Hour Meter | AMBER | Scheduled maintenance interval has been reached based on TB240's hours. | Perform maintenance as indicated in the operator’s manual. | |
| Work Lights | GREEN | The TB240's work lights are currently switched on for nighttime or low-light operation. | No action needed unless lights are not required. | |
| Beacon / Rotating Light | AMBER | The beacon is active, signaling machine presence for safety. | No action needed unless beacon use is not required. | |
| Parking Brake | RED | Parking brake is engaged, preventing movement of the TB240. | Release the parking brake before attempting to move the excavator. | |
| Glow Plug / Preheat | AMBER | The glow plugs are active, preheating the engine for easier cold starting. | Wait for the light to turn off before starting the engine. | |
| Hydraulic Oil | AMBER | Hydraulic oil temperature is elevated or oil level is low. | Check hydraulic oil level and allow the system to cool if necessary. | |
| Engine Oil Temperature | RED | Engine oil temperature is excessively high in the TB240. | Stop the engine and allow it to cool before resuming work. | |
| Overload / Capacity | RED | The TB240 is overloaded or exceeding rated lift capacity. | Reduce the load immediately to protect the equipment. | |
| Door Open | AMBER | Cab door is not fully closed on the TB240. | Securely close the door before operating the machine. |
22 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 malfunction
- Engine bearing wear
What to do
Stop the TB240 immediately, check oil level and top up if needed; if the warning persists, contact a Takeuchi technician to inspect the lubrication system.
Coolant Temperature Warning
Common causes
- Low coolant level
- Radiator blockage
- Thermostat failure
What to do
Turn off the engine and allow it to cool, then inspect coolant level and radiator; clean or top up as necessary, and consult service if overheating continues.
Overload / Capacity Warning
Common causes
- Lifting load beyond TB240's rated capacity
- Incorrect attachment usage
- Unstable ground conditions
What to do
Lower the load immediately, reposition the machine on stable ground, and verify the attachment is suitable for the intended work.
Battery / Charging Warning
Common causes
- Alternator failure
- Loose or corroded battery terminals
- Broken drive belt
What to do
Inspect the alternator, battery connections, and belt for faults; replace or repair components as needed to restore charging function.
Frequently Asked Questions
What should I do if the DPF regeneration light stays on?
If the DPF light remains on, follow the regeneration instructions in the operator’s manual or on the display; if it won’t clear, have the system checked by a Takeuchi dealer.
Why does the hydraulic oil warning appear after long work sessions?
Extended operation can cause hydraulic oil to overheat or drop in level—check the reservoir and let the machine cool if the warning appears.
How can I reset the service/hour meter indicator?
After completing scheduled maintenance, use the dashboard buttons as described in the TB240 manual to reset the service interval.
Is it safe to operate if the air filter warning is on?
No, continued use with a restricted air filter can cause engine performance issues; inspect and clean or replace the filter promptly.
What does it mean if the DEF/AdBlue light is amber?
This indicates the DEF tank is low or there’s a system fault; refill the tank and check for any error codes on the display.