The Bobcat 773 skid steer loader's instrument cluster provides essential warnings and indicators to ensure safe and efficient operation. This guide covers the most common lights you'll encounter while operating this compact machine.
Bobcat 773 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | Illuminates when a critical fault is detected that requires immediate engine shutdown to prevent damage. | Stop the engine safely and consult the Bobcat 773 service manual. | |
| Master Caution | AMBER | Lights up to alert you of a non-critical system issue that needs attention soon. | Check the display for additional codes and schedule service. | |
| Check Engine (MIL) | AMBER | Indicates an engine management or emission control system fault specific to the Bobcat 773's Kubota diesel engine. | Have the engine diagnostics read by a Bobcat dealer. | |
| Engine Oil Pressure | RED | Warns of low engine oil pressure, which can cause severe engine damage if ignored. | Stop the engine immediately and check oil level and pressure. | |
| Battery / Charging | RED | Signals a charging system problem, such as a faulty alternator or battery, on the Bobcat 773. | Check battery connections and alternator belt; recharge or replace battery if needed. | |
| Coolant Temperature | RED | Indicates engine coolant is overheating, often due to low coolant level or a clogged radiator. | Stop the engine, let it cool, then check coolant level and radiator for debris. | |
| Hydraulic Oil Temperature | AMBER | Warns that hydraulic oil temperature is too high, reducing system efficiency and potentially damaging seals. | Reduce load and allow system to cool; check hydraulic oil level and cooler. | |
| Parking Brake | RED | Lights when the parking brake is engaged, or flashes if a fault exists in the brake system. | Release parking brake before moving; if flashing, inspect brake linkage and switch. | |
| Seat Belt | RED | Reminds the operator to fasten the seat belt for safety; may stay on until belt is buckled. | Fasten your seat belt before operating the Bobcat 773. | |
| Glow Plug / Preheat | AMBER | Indicates the glow plugs are heating for cold starts; wait for it to turn off before cranking. | Turn the key to the preheat position and wait until the light goes out, then start. | |
| Low Fuel | AMBER | Alerts that fuel level is low; on the Bobcat 773, this may also activate a warning buzzer. | Refuel with diesel fuel as soon as possible to avoid running out. | |
| Air Filter Restriction | AMBER | Detects a clogged air filter that can reduce engine performance and fuel economy. | Inspect and replace the air filter element if dirty. | |
| Water in Fuel | AMBER | Indicates water has accumulated in the fuel filter/water separator; can cause injection damage. | Drain the water from the fuel filter separator bowl. | |
| Low Oil Level | AMBER | Warns that engine oil level is below the safe operating range. | Check engine oil level and add oil as needed. |
14 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 inspect the radiator for debris. If persistent, have a Bobcat dealer check the cooling system.
Low Oil Pressure
Common causes
- Low oil level
- Oil pump failure
- Clogged oil filter
What to do
Shut down the engine immediately. Check oil level and add if low; if light remains, do not restart and have the oil system inspected by a mechanic.
Charging System Failure
Common causes
- Broken alternator belt
- Faulty alternator
- Bad battery connection
What to do
Check battery terminals and alternator belt condition. If belt is intact, have the charging system tested and repaired.
Hydraulic Overheat
Common causes
- Prolonged heavy use
- Low hydraulic fluid
- Blocked hydraulic cooler
What to do
Reduce load and let hydraulics cool. Check fluid level and clean cooler fins. If recurring, inspect for system blockage.
Parking Brake Malfunction
Common causes
- Worn brake pads
- Sticking linkage
- Faulty switch
What to do
If light flashes, stop the machine and inspect brake linkage for freedom of movement. Have a technician adjust or replace brake components as needed.
Frequently Asked Questions
What does the red stop light mean on my Bobcat 773?
The red master warning light indicates a critical fault that requires immediate engine shutdown. Stop the engine safely and check the corresponding system (oil pressure, coolant temp, etc.) before restarting.
Why is my amber caution light on?
The amber caution light signals a non-urgent issue such as low fuel, high hydraulic temperature, or a clogged air filter. Check the instrument panel for the specific symbol and address it at your earliest convenience.
How do I reset the check engine light?
The check engine light on the Bobcat 773 will turn off after the underlying issue is resolved. If it remains on, have a dealer scan the engine control unit for fault codes and reset it with diagnostic equipment.
Can I operate the Bobcat 773 with the hydraulic temperature light on?
No. Continuing to operate with the hydraulic oil temperature warning light on can cause seal damage and system failure. Stop and let the hydraulics cool, then check fluid levels and cooling before resuming work.
What should I do if the glow plug light stays on?
If the glow plug light stays on for more than 10 seconds or remains lit after start, there may be a fault in the preheat system. Have a Bobcat dealer inspect the glow plugs and relay.
Why does my Bobcat 773 slow down with the amber caution light?
If the amber caution light accompanies reduced power, the engine may be in a limp mode due to a sensor fault or high exhaust temperature. Consult your operator's manual and have the machine serviced.