The Mitsubishi Forklift FG20N is a reliable LPG-powered industrial truck designed for medium-duty material handling tasks. Its instrument cluster provides essential feedback to operators for safe and efficient forklift operation. Understanding these indicators is crucial for maintaining performance and preventing downtime on the FG20N.
Mitsubishi Forklift FG20N Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | A critical fault has been detected in a key system on the FG20N, such as engine or hydraulic failure. | Stop the forklift safely and contact maintenance immediately. | |
| Master Caution | AMBER | A non-critical fault or abnormal condition has been detected on the FG20N that needs prompt attention. | Investigate the specific caution and address it before further operation. | |
| Check Engine (MIL) | AMBER | The engine control system has detected a malfunction or emissions issue specific to the FG20N's LPG engine. | Schedule service and avoid heavy loads until checked. | |
| Engine Oil Pressure | RED | Engine oil pressure has dropped dangerously low, risking serious engine damage on the FG20N. | Shut down the engine immediately and check oil level and leaks. | |
| Battery / Charging | RED | The FG20N's charging system is not supplying power, indicating battery or alternator trouble. | Avoid shutting off the engine and have the charging system inspected. | |
| Coolant Temperature | RED | The engine coolant temperature is too high, risking overheating on the FG20N. | Stop operation, allow the engine to cool, and check coolant level. | |
| Brake System | RED | A fault has been detected in the FG20N's brake system, compromising safe stopping. | Do not operate the forklift until brakes are inspected and repaired. | |
| Parking Brake | RED | The parking brake is engaged on the FG20N. | Release the parking brake before driving. | |
| Low Fuel | AMBER | The LPG fuel tank is nearly empty, risking engine shutdown during use. | Refuel with LPG as soon as possible. | |
| Service / Hour Meter | AMBER | Scheduled maintenance is due based on hours logged by the FG20N. | Arrange for service to avoid unplanned downtime. | |
| Hydraulic Oil | AMBER | The hydraulic oil level or pressure is outside normal range, risking poor lift performance. | Check hydraulic oil level and look for leaks. | |
| Air Filter | AMBER | The FG20N's air filter is clogged, which may restrict engine performance. | Inspect and replace the air filter if necessary. | |
| Fuel Filter / Water Separator | AMBER | The fuel filter or water separator requires service, which could affect fuel delivery. | Replace the fuel filter or drain water separator. | |
| Work Lights | GREEN | The FG20N's work lights are switched on for improved visibility. | No action required unless lights are not needed. | |
| Beacon / Rotating Light | AMBER | The beacon is activated to alert others of forklift movement. | Ensure beacon is functioning in active work zones. | |
| Overload / Capacity | RED | The FG20N's load exceeds safe lifting capacity, risking tip-over or damage. | Lower the load immediately and reduce weight. | |
| Fasten Seat Belt | AMBER | The operator's seat belt is not fastened while the FG20N is running. | Buckle the seat belt before operating. |
17 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.
Most Important Warning Lights
Engine Oil Pressure
Common causes
- Insufficient engine oil
- Oil pump failure
- Oil filter blockage
What to do
Shut down the FG20N immediately, check and top up oil, and inspect for leaks or a faulty oil pump before restarting.
Coolant Temperature
Common causes
- Low coolant level
- Faulty radiator or cooling fan
- Blocked coolant passages
What to do
Allow the engine to cool, check coolant and radiator, and clear any blockages to prevent FG20N overheating.
Overload / Capacity
Common causes
- Attempting to lift too heavy a load
- Incorrect load positioning
- Malfunctioning load sensor
What to do
Reduce the load to within FG20N limits, reposition if needed, and have load sensors checked if warning persists.
Brake System
Common causes
- Low brake fluid
- Worn brake pads
- Hydraulic brake leak
What to do
Do not use the FG20N until brakes are inspected and repaired, and fluid is topped up as needed.
Frequently Asked Questions
What should I do if the check engine light appears on the FG20N?
Continue operating only if no other warnings are present, but schedule service soon to diagnose the engine issue.
Why does the hydraulic oil light come on during lifting?
This usually means the hydraulic oil is low or overheating; check the reservoir and inspect for leaks.
Can I operate the FG20N if the air filter light is on?
It's best to replace or clean the air filter soon, as a clogged filter can reduce engine efficiency and power.
What does it mean when the overload warning is displayed?
The forklift is attempting to lift more than its rated capacity, which is unsafe—lower the load immediately.
How often does the FG20N require scheduled maintenance?
Service intervals are based on engine hours; refer to the hour meter and follow the maintenance schedule in the operator's manual.