Malfunctions during crane operation
14.3 Warning and error messages
14 - 6 3 302 709 en Operating manual
GMK5150L
12.01.2018
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 - 20.
Pre-tension counterweight (early warning)
The pre-tensioning pressure is at the lower limit – if the pre-tensioning
pressure continues to drop, the slewing is disabled.
• Pre-tension the counterweight; à p. 12 - 105.
Pre-tension the counterweight
The pre-tensioning pressure is too low.
• Pre-tension the counterweight; à p. 12 - 105.
Slewing disabled by counterweight
The pre-tensioning pressure is too low or the counterweight is not
completely lifted.
• Pre-tension the counterweight; à p. 12 - 105.
Reduction of slewing speed switched off
– Blue – information
The slewing speed is not reduced automatically.
– Red – warning
The maximum permissible slewing speed stated in the
Lifting capacity table
for the current loading case has been exceeded.
There is a risk of accidents – slowly reduce the slewing speed to a permis-
sible value and where possible engage the reduction of slewing speed, to
prevent further cases where the speed in exceeded;
à p. 11 - 121.