Malfunctions during crane operation
14.3 Warning and error messages
Operating manual 3 302 709 en 14 - 5
GMK5150L
12.01.2018
Engine malfunction
• Switch off the engine immediately and open the Engine error menu;
à p. 8 - 17.
• If necessary, note the error messages and contact Manitowoc Crane Care.
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).
Display of the current temperature;
à p. 10 - 8.
Possible cause and remedy;
à p. 14 - 22.
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 - 145.
Voltage monitoring
The voltage in the electrical system is too high or too low.
Display of the current voltage;
à p. 10 - 8.
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
temperature of the hydraulic oil exceeds 100 °C (176 °F).
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