Magnum MMG75D Betreibershandbuch PDF herunterladen (Seite 31)

8. Press the Enter “” button to reset the selected maintenance alarm.

Note: If the selected maintenance alarm does not need to be reset, press the “” button to highlight “Not Reset”

and press the Enter “” button return to the parameters section.

1. To perform additional maintenance alarm resets, repeat steps 6-8.

2. To save changes, press and hold the Enter “” button for five seconds. To discard changes made, press

and hold the Engine Stop/Reset “O” button for five seconds.

TROUBLESHOOTING AUTOMATIC SHUTDOWN CONDITIONS

WARNING

Allow engine to cool before performing any troubleshooting procedures. Contacting

the engine when it is hot will cause severe personal injury.

LOW FUEL LEVEL SHUTDOWN

1. Check the fuel level on the Home screen. Confirm that the generator is sitting level to ensure an accurate

reading.

2. Check for leaks in the fuel tank. The fuel tank should not run dry under normal circumstances. The engine

controller will shut the engine down when there is five percent of fuel remaining in the tank. This is done

to keep the fuel lines from running dry.

3. If the fuel level is good and no leaks are found, check the fuel level sender and the connecting wiring

for damage. To check for continuity between the sender and the engine controller, remove the appropriate

bolts from the control panel to access the inside of the control box. Consult the DC wiring diagram in

the back of this manual for the proper path between the engine controller and the fuel level sender.

LOW OIL PRESSURE SHUTDOWN

1. Check the level of the engine oil with the dipstick because the Power Zone™ controller will shut the

engine down when the oil pressure is less than 20 psi (138 kPa). Add oil if required.

2. Visually inspect the engine for oil leaks.

3. If the oil level is good, restart the unit and verify the loss of oil pressure. Shut the engine down immediately

if the oil pressure value does not read 5 psi (34 kPa) within five seconds.

4. Check the oil pressure sender. To identify corrective action, refer to the troubleshooting section of the

engine operator’s manual provided with the unit.

LOW COOLANT LEVEL SHUTDOWN

1. Allow the engine to cool.

2. Check the coolant level in the radiator. To access the radiator cap, you must remove the access panel

from the top of the enclosure directly above the radiator. Add coolant until it is 3/4 in. (1.9 cm) below the

filler neck. Secure the radiator cap back into its original position.

3. Inspect coolant hoses, engine block and water pump for visible leaks.

4. Check engine oil to verify no coolant has mixed with it (oil will appear milky if coolant is present). Consult

the engine operator’s manual for additional information.

HIGH COOLANT TEMPERATURE SHUTDOWN

1. Check the coolant level in the overflow jug.

2. Restart the engine and read the coolant temperature to verify a high coolant temperature shutdown.

Stop the engine immediately if the coolant temperature is 230°F (110°C) or more.

3. Allow the engine to cool. Add coolant to the overflow jug if it is low and then check the level of coolant

in the radiator. To access the radiator cap, you must remove the access panel from the top of the enclosure

directly above the radiator. Add coolant until it is 3/4 in. (1.9 cm) below the filler neck. Secure the radiator

cap back into its original position.

4. Check the radiator shroud and ducting for blockage and remove any foreign matter.

5. Inspect coolant hoses, engine block and water pump for visible leaks.

6. Check the tension of the serpentine drive belt for the water pump.

7. If no other problems are found, remove the load on the generator and restart the engine. Check the

coolant temperature and shut the engine down immediately if it starts to overheat. Consult the engine

operator’s manual for additional information on engine overheating.

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