The Manitou MRT 2150 rotating telehandler instrument cluster provides essential warnings for safe operation in aerial lift and material handling tasks. Familiarize yourself with these indicators to ensure machine reliability and operator safety.
Manitou MRT 2150 Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | A critical system fault requiring immediate engine shutdown is detected in the MRT 2150's electronic control system. | Stop the engine and consult the fault code display; do not restart until resolved. | |
| Master Caution | AMBER | A non-critical system issue requires attention; the MRT 2150 can continue operation but service is recommended. | Check the message center and schedule service as soon as possible. | |
| Check Engine (MIL) | AMBER | The engine management system has detected an emissions-related fault in the MRT 2150's Yanmar or other engine. | Reduce load and drive to service bay; have the fault code read by a technician. | |
| Engine Oil Pressure | RED | Engine oil pressure is below safe operating range for the MRT 2150's hydraulic lifter system. | Stop the engine immediately and check oil level and filter. | |
| Battery / Charging | RED | The charging system voltage is too low, indicating alternator or battery failure on the MRT 2150. | Check battery connections and alternator belt; replace battery if necessary. | |
| Coolant Temperature | RED | Engine coolant has exceeded safe temperature, risking heat damage to the MRT 2150's cooling system. | Stop and idle engine; check coolant level and radiator for debris. | |
| Transmission Temp | AMBER | Transmission fluid temperature is high, which can degrade the MRT 2150's hydrostatic drive efficiency. | Reduce load and shift to lower gear; allow transmission to cool. | |
| Brake System | RED | A fault in the service brake circuit, such as low pressure or worn pads, is present on the MRT 2150. | Check brake fluid level and inspect for leaks; do not operate until brakes are verified. | |
| Parking Brake | RED | The parking brake is engaged or there is a fault, preventing machine movement on the MRT 2150. | Release parking brake before driving; if light stays on, check brake switch and system. | |
| Seat Belt | RED | The operator's seat belt is not fastened; the MRT 2150 requires belt engagement for operation. | Fasten the seat belt immediately; machine may not start without it. | |
| Glow Plug / Preheat | AMBER | The intake air preheating is active; wait for the light to go out before cranking the MRT 2150. | Do not start the engine until the light turns off. | |
| DPF / Regeneration | AMBER | The Diesel Particulate Filter requires active regeneration to clear soot buildup in the MRT 2150's exhaust. | Drive at moderate load until regeneration completes; if light flashes, see manual. | |
| DEF / AdBlue | AMBER | Diesel Exhaust Fluid level is low; the MRT 2150 may reduce power if not replenished. | Refill DEF tank with approved fluid to maintain emissions compliance. | |
| Low Fuel | AMBER | The fuel level is low; the MRT 2150 can operate for approximately 30 minutes more. | Refuel the machine at the nearest fuel station to avoid air in the system. | |
| High Beam | BLUE | The high beam headlights are activated, improving visibility but may blind other operators. | Dim when approaching other machines or vehicles on site. | |
| Hydraulic System | RED | A hydraulic system fault, such as low pressure or filter blockage, is detected on the MRT 2150. | Stop all hydraulic functions and check fluid level and temperature. | |
| Fasten Seat Belt | RED | Same as seat belt light but may flash more urgently for the MRT 2150's safety interlock. | Ensure the seat belt is properly latched and not worn. | |
| Reduced Power (Limp Mode) | AMBER | Engine power is automatically reduced to protect components due to a fault in the MRT 2150. | Operate at low speed and proceed to service area; check for active warning codes. | |
| Air Filter | AMBER | The engine air filter is clogged, restricting airflow and reducing MRT 2150 performance. | Replace or clean the air filter element according to maintenance schedule. | |
| Fuel Filter / Water Separator | AMBER | Water or contaminants detected in the fuel filter/water separator on the MRT 2150's diesel system. | Drain the water separator and replace the fuel filter if necessary. | |
| Service / Hour Meter | AMBER | Scheduled maintenance is due based on engine operating hours on the MRT 2150. | Refer to the service manual for required checks and procedures. | |
| Work Lights | GREEN | The auxiliary work lights are turned on, providing illumination for nighttime or low-light operation. | Turn off work lights when not needed to save battery power. | |
| Beacon / Rotating Light | GREEN | The rotating amber beacon is active, indicating the MRT 2150 is in operation. | Keep beacon on whenever the machine is moving or working. | |
| Swing / Slew Lock | RED | The rotating superstructure is locked; the MRT 2150 cannot slew until released. | Release the swing lock before rotating; check if engaged manually. | |
| Differential Lock | AMBER | The differential lock is engaged for improved traction on slippery ground in the MRT 2150. | Disengage on hard surfaces to avoid tire wear and driveline stress. | |
| Overload / Capacity | RED | The load on the forks or platform exceeds the rated capacity of the MRT 2150. | Immediately lower and reduce load; operation with overload may cause tip-over. | |
| Low Oil Level | RED | Engine oil level is below the minimum mark; insufficient lubrication risk for the MRT 2150. | Check oil level with dipstick and add recommended oil grade. | |
| Brake Fluid Level | RED | Brake fluid reservoir is low, indicating possible leaks or worn pads in the MRT 2150's brakes. | Inspect brake system for leaks and top up fluid only with approved type. | |
| Door Open | RED | The cab door is not fully closed; the MRT 2150 may move but with a warning. | Close all doors securely before operating the machine. | |
| High Exhaust Temp (HEST) | AMBER | Exhaust gas temperature is high during DPF regeneration; avoid parking near flammables. | Allow regeneration to complete; do not stop engine abruptly. |
30 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
- Blocked radiator fins
- Malfunctioning thermostat
What to do
Stop the MRT 2150 immediately and let it idle. Check coolant level and add if low. Clean the radiator with compressed air. If light persists, inspect the cooling system for leaks.
Hydraulic System Failure
Common causes
- Low hydraulic fluid
- Contaminated oil
- Hydraulic pump failure
What to do
Park the MRT 2150 on level ground and check hydraulic oil level via dipstick. Inspect for leaks in hoses and cylinders. If oil is dirty, drain and replace with recommended type.
Overload Condition
Common causes
- Excessive load on forks
- Operating beyond load chart
- Improper load distribution
What to do
Immediately lower the load and reduce weight to within the MRT 2150's rated capacity. Refer to the load chart on the machine. Do not exceed 2,500 kg (approx. max 5,500 lbs) depending on configuration.
Transmission Overheating
Common causes
- Continuous high load operation
- Low transmission fluid
- Cooler blockage
What to do
Shift to neutral and run the engine at idle to cool the transmission. Check fluid level and add if low. Clean the transmission cooler fins with water or air.
Low Engine Oil Pressure
Common causes
- Insufficient oil level
- Oil pump failure
- Clogged oil filter
What to do
Stop the engine immediately to prevent seizure. Check oil level and add if low. If level is correct, do not restart; call a Manitou technician for pump inspection.
Frequently Asked Questions
Why does my MRT 2150 display a flashing red master warning light with no other indicator?
A flashing master warning with no additional light often indicates a CAN bus communication fault. Cycle the key off and on; if it persists, a diagnostic tool is required to read the specific fault code stored in the ECU.
How do I perform a manual DPF regeneration on the MRT 2150?
Park the machine outdoors, ensure no flammables nearby, and with the engine warm, press and hold the regen switch (usually near the steering column) for 5 seconds until the DPF light flashes. The process takes 10–30 minutes; do not interrupt it.
What does the overload light mean on the MRT 2150, and can I continue working?
The red overload light indicates the load exceeds 100% of the rated capacity. Stop all lifting and movement immediately; continued use risks tip-over and structural damage. Reduce the load to below the limit shown on the load chart.
My MRT 2150's seat belt light stays on even though I'm buckled in. What could be wrong?
The sensor may be sticking or the buckle connection is corroded. Try unlatching and re-latching firmly. If it persists, inspect the wiring under the seat and clean contacts. If the issue continues, the seat belt buckle assembly may need replacement.
Why is the swing lock light illuminated while driving?
The swing lock may have been engaged inadvertently. Check the swing lock lever or button on the dashboard. If it's not engaged, there could be a sensor fault; have it checked to avoid unexpected locking during rotation.
How often should I replace the air filter on the MRT 2150?
Replace the air filter every 500 hours or when the air filter indicator light comes on, whichever occurs first. In dusty environments, more frequent checks are recommended via the service menu on the display.