Marathon MAGNUM ROUTER Instrukcja Operatora Pobierz pdf (Strona 45)

bolts from the control panel to access the inside of the control box. Refer to 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. The engine 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). Refer

to 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. Refer to the engine

operator’s manual for additional information on engine overheating.

OVERCRANK SHUTDOWN

1. Check the fuel level in the tank.

2. Check for proper operation of the fuel pump.

3. Check the air filter for blockage.

4. If the engine will not start, refer to the engine operator’s manual for additional information on trouble-

shooting starting problems.

OVERSPEED OR UNDERSPEED SHUTDOWN

1. Disconnect all loads and restart the generator. Read the frequency (Hz) on the LCD window. With no

loads on the generator, the frequency should read 60.0 Hz.

2. If the frequency is above or below 60.0 Hz, the engine speed will have to be adjusted. Refer to the engine

operator’s manual for throttle adjustments on mechanically governed units and refer to the electronic

governor manual for electronically controlled units. Contact John Deere with speed related issues since

the engine is governed by the John Deere Electronic Engine Control Unit (ECU).

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