Malfunctions during crane operation
14.3 Warning and error messages
Operating manual 3 302 736 en 14 - 5
GMK4090
xx.xx.xxxx
Refuelling
The fuel tank is filled only to a level of about 5%.
• Refuel before the fuel is used up; à p. 4 - 5.
If the fuel tank is almost empty, air will be sucked in and you will have to
bleed the fuel system;
à Maintenance manual.
Hydraulic oil too hot
The hydraulic oil temperature is higher than 80 °C (176 °F).
Possible cause and remedy;
à p. 14 - 20.
Replace hydraulic oil filter
• Replace the corresponding hydraulic oil filter as soon as possible;
à Maintenance manual.
Slewing gear brake too hot
• Stop crane operation as soon as possible and let the slewing gear brake
cool down.
Anemometer not connected
• Connect the anemometer to the electrical power supply; à p. 12 - 147.
Voltage monitoring
The voltage in the electrical system is too high or too low.
Display of the current voltage;
à p. 10 - 8.
Air intake inhibitor triggered
It is only possible to start the engine after the air intake inhibitor has been
released manually;
à Opening the air intake inhibitor, p. 4 - 21.
s
S
Danger of overheating
There is a fault if the hydraulic oil temperature exceeds 80 °C (176 °F). Set
down the load as soon as possible and try to find the cause.
Set down the load as soon as possible and turn off the engine if the tem-
perature of the hydraulic oil exceeds 100 °C (176 °F).
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