1. There is not enough oil in the tank 2. Clogged filters on the suction hydraulic lines of the hydraulic pumps 3. Malfunction of the motion control system (the system health monitoring LED is on)
1. Check the oil level in the tank and, if necessary, refill 2. Check the readings of the vacuum gauges on the filters when the engine is in steady state and the oil in the system is warm. The arrows should not be in the red sector, exceeding the value of 0.2 bar. If necessary, replace the filter elements 3. Contact the service center