The Kobelco excavator's instrument cluster provides critical machine status and alerts to ensure safe and efficient operation. This guide explains the meaning of each warning light and recommended actions specific to Kobelco models.
Kobelco excavator Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | A critical failure has occurred in the engine or hydraulic system on your Kobelco excavator—stop the machine immediately. | Shut down the engine and investigate the cause using the display error code. | |
| Master Caution | AMBER | A non-critical fault is detected in one of the Kobelco's subsystems; further operation may lead to damage. | Check the monitor for the specific warning and address the issue at the next service stop. | |
| Check Engine (MIL) | AMBER | The engine control unit on your Kobelco excavator has detected an emission or performance issue. | Have the engine diagnosed by a Kobelco dealer as soon as possible. | |
| Engine Oil Pressure | RED | Engine oil pressure is below safe levels in your Kobelco excavator—severe engine damage may occur. | Stop the engine immediately and check oil level and pressure sensor. | |
| Battery / Charging | RED | The alternator is not charging the battery properly on your Kobelco excavator. | Check alternator belt and connections; if lit after startup, service the charging system. | |
| Coolant Temperature | RED | Engine coolant temperature has exceeded the safe limit on your Kobelco excavator. | Stop the engine, let it cool, and check coolant level and radiator condition. | |
| Hydraulic System | AMBER | The hydraulic system in your Kobelco excavator is experiencing abnormal temperature or pressure. | Reduce load and check hydraulic oil level; if persistent, inspect the system. | |
| Hydraulic Oil | AMBER | Hydraulic oil level is low or filter is clogged on your Kobelco excavator. | Top up hydraulic oil to the correct level and replace the filter if needed. | |
| Engine Oil Temperature | AMBER | Engine oil temperature is higher than normal on your Kobelco excavator; continued operation may cause damage. | Reduce engine load and allow the engine to idle until temperature normalizes. | |
| Air Filter | AMBER | The engine air intake filter is restricted on your Kobelco excavator, reducing performance. | Clean or replace the air filter element as per Kobelco maintenance intervals. | |
| Fuel Filter / Water Separator | AMBER | Water has accumulated in the fuel filter/water separator on your Kobelco excavator. | Drain the water from the separator and replace the fuel filter if necessary. | |
| Water in Fuel | AMBER | Excess water detected in the fuel system of your Kobelco excavator; fuel quality may be compromised. | Drain the water separators and refuel from a clean source. | |
| Low Fuel | AMBER | Fuel level in your Kobelco excavator is low; refill soon to avoid air ingestion. | Add diesel fuel to the tank at the nearest opportunity. | |
| Glow Plug / Preheat | AMBER | The glow plug system is active or malfunctioning on your Kobelco excavator; wait for the light to turn off before starting. | If flashing, have the glow plug system inspected by a Kobelco technician. | |
| DPF / Regeneration | AMBER | The diesel particulate filter on your Kobelco excavator requires regeneration to clear soot buildup. | Run the engine at high idle to allow passive regeneration or initiate parked regen as instructed. | |
| Parking Brake | RED | Parking brake is engaged on your Kobelco excavator or a fault exists in the brake system. | Release the parking brake before moving; if light stays on, check brake system. | |
| Seat Belt | RED | The operator's seat belt is not fastened on your Kobelco excavator. | Fasten the seat belt immediately for safety. | |
| Swing / Slew Lock | AMBER | The swing brake lock is engaged on your Kobelco excavator; the upper structure cannot rotate. | Disengage the swing lock before operating the machine. | |
| Overload / Capacity | RED | The excavator's lifting capacity has been exceeded on your Kobelco machine—risk of tipping or structural damage. | Reduce the load immediately and reposition if necessary. | |
| Work Lights | GREEN | The work lights on your Kobelco excavator are turned on. | No action needed; lights are functioning normally. | |
| Beacon / Rotating Light | AMBER | The rotating beacon on your Kobelco excavator is active, indicating the machine is in operation. | Ensure the beacon is visible for safety; turn off when not in use. | |
| Service / Hour Meter | AMBER | Scheduled maintenance is due on your Kobelco excavator based on operating hours. | Perform the required service as outlined in the Kobelco maintenance manual. | |
| Reduced Power (Limp Mode) | AMBER | The engine has entered a reduced power mode to protect itself on your Kobelco excavator. | Finish the current task and have the machine diagnosed by a Kobelco dealer. |
23 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
- Clogged radiator fins
- Faulty thermostat
What to do
Stop the engine and allow it to cool. Check coolant level and add if low; clean radiator fins with compressed air. If persistent, replace the thermostat as per Kobelco specifications.
Hydraulic System Failure
Common causes
- Low hydraulic oil level
- Contaminated oil
- Hydraulic pump wear
What to do
Check hydraulic oil level and top up with recommended Kobelco oil. If contamination is suspected, drain and replace oil and filter. For pump issues, contact a Kobelco service center.
Engine Oil Leak
Common causes
- Worn gaskets
- Loose oil drain plug
- Cracked oil pan
What to do
Identify the source of the leak. Tighten any loose connections; replace gaskets or oil pan as needed. Always use genuine Kobelco parts.
Electrical System Malfunction
Common causes
- Battery terminals corroded
- Alternator failure
- Blown fuse
What to do
Clean battery terminals and ensure tight connections. Test alternator output; replace if defective. Check and replace any blown fuses with correct amperage.
Frequently Asked Questions
What should I do if the Master Warning (Stop) light comes on while operating?
Immediately stop the engine and consult the error code on the Kobelco monitor. Do not restart until the issue is resolved to prevent major damage.
Why is the DPF regeneration light flashing on my Kobelco excavator?
It indicates that the diesel particulate filter is clogged and needs a regeneration process. Move the machine to a safe area, engage the parking brake, and follow the parked regeneration procedure in your Kobelco operator's manual.
How often should I check the hydraulic oil level?
Check the hydraulic oil level daily before starting the machine, especially when the hydraulic oil is cold. Maintain the level between the marks on the sight gauge using Kobelco-approved hydraulic oil.
What does the glow plug light mean in cold weather?
The glow plug light indicates that the engine preheat system is active. Wait until the light turns off before starting the engine. If it flashes, a fault exists and the system should be inspected.
Can I continue working if the Reduced Power (Limp Mode) light is on?
You can operate at reduced capacity to finish the current task, but avoid heavy loads. Schedule a dealer diagnosis as soon as possible to restore full power.