The Bobcat 773 is a versatile compact excavator known for its reliability and efficiency on job sites. Its instrument cluster provides essential alerts to keep the operator informed about the machine’s status and performance. Understanding these indicator lights is crucial for safe and optimal operation.
Bobcat Excavator 773 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | A critical malfunction has been detected in the 773’s systems, requiring you to stop the machine immediately. | Safely park the excavator, shut off the engine, and inspect for the cause or contact Bobcat service. | |
| Check Engine (MIL) | AMBER | The Bobcat 773’s engine control system has detected a fault affecting performance or emissions. | Schedule service soon and avoid heavy loads until the issue is diagnosed. | |
| Engine Oil Pressure | RED | The engine oil pressure has dropped dangerously low in your 773, risking severe engine damage. | Shut down the engine immediately and check oil level and condition before restarting. | |
| Battery / Charging | RED | The charging system isn’t replenishing the 773’s battery, which can quickly lead to stalling. | Inspect the alternator belt and battery connections; do not continue operation if the light remains on. | |
| Coolant Temperature | RED | The engine coolant temperature has exceeded safe limits on the Bobcat 773. | Stop operation, allow the machine to cool, and check coolant level and radiator for blockages. | |
| Low Fuel | AMBER | The fuel tank in your 773 is nearly empty, risking stalling during operation. | Refuel at the next opportunity to avoid running dry. | |
| Hydraulic Oil | AMBER | The hydraulic oil level or pressure is below optimal range, affecting implement performance. | Check for leaks and top up hydraulic oil as needed. | |
| Hydraulic System | AMBER | A hydraulic system fault has been detected, possibly impacting boom or bucket movement. | Inspect for leaks or unusual noises, and arrange for service if the problem persists. | |
| Glow Plug / Preheat | AMBER | The 773’s glow plugs are preheating the combustion chamber for a cold start. | Wait for the light to turn off before starting the engine. | |
| Work Lights | GREEN | The work lights are switched on, illuminating your work area for the Bobcat 773. | No action needed unless lights are not required. | |
| Parking Brake | RED | The parking brake is engaged, preventing the 773 from moving. | Release the brake before attempting to drive the excavator. | |
| Seat Belt | AMBER | The operator seat belt is not fastened, which is a safety concern in the 773. | Buckle the seat belt before operating the machine. | |
| Fuel Filter / Water Separator | AMBER | The fuel filter may be clogged or the water separator is full in your 773. | Drain water from the separator and replace the filter as needed. | |
| Air Filter | AMBER | The air filter is restricted, reducing engine efficiency in the 773. | Inspect and clean or replace the air filter. | |
| Service / Hour Meter | AMBER | Scheduled maintenance is due based on the engine hours of your Bobcat 773. | Perform recommended service tasks to keep the machine in good condition. |
15 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
- Blocked oil filter
What to do
Immediately stop the Bobcat 773, check the oil level and condition, and do not restart until the cause is resolved. If oil level is normal, consult a Bobcat technician before further use.
Coolant Temperature Warning
Common causes
- Low coolant level
- Radiator blockage
- Failed thermostat
What to do
Shut down the 773 and let it cool, then check coolant level and radiator for obstructions. If the warning persists, seek professional service to avoid engine overheating.
Battery / Charging Warning
Common causes
- Broken alternator belt
- Faulty alternator
- Loose battery terminals
What to do
Stop operation and inspect the alternator belt and battery connections on your 773. If the cause isn’t obvious, arrange for electrical system diagnostics.
Hydraulic Oil Warning
Common causes
- Low hydraulic oil level
- Hydraulic leak
- Clogged hydraulic filter
What to do
Check for visible hydraulic leaks and top up fluid if needed. Replace the hydraulic filter if it's clogged, and monitor for recurring issues.
Frequently Asked Questions
What should I do if the oil pressure light comes on while operating my Bobcat 773?
Stop the engine immediately and check the oil level; do not restart until you’ve identified and fixed the issue to prevent engine damage.
How do I reset the service/hour meter light on my Bobcat 773?
After performing scheduled maintenance, follow the reset procedure in the operator’s manual, which typically involves holding specific buttons on the display.
Why does the hydraulic system warning light come on intermittently?
This can indicate low hydraulic fluid, a clogged filter, or minor leaks—inspect the system and address any maintenance needs promptly.
Can I operate the Bobcat 773 if the battery light is on?
It’s not recommended; the battery may not be charging, which can lead to stalling—address the electrical issue before continuing work.
Is it safe to ignore the air filter warning light?
No; a restricted air filter can reduce engine power and efficiency, so clean or replace it as soon as possible.