To be checked SeechapterConfirmed?➤ Is there sufficient cooling oil in the separator tank?(Cooling oil level indicator outside the red zone)10.13➤ Sufficient cooling oil in the airend? 7.6➤ Machine firmly anchored to the floor?(Option H1)6.6.1➤ Are all access doors closed and latched and removable panels inplace and secured?–Tab. 50 Installation conditions checklist7.4 Setting the overload protection cut-outElectrical diagram 13.4 gives the location of the overload relay.With star-delta starting, the phase current is fed via the overload relay. This phase current is 0.58-times the rated motor current.To prevent the overload relay being triggered by voltage fluctuations, temperature influences orcomponent tolerances, the setting can be higher than the arithmetical phase current.➤ Check the settings of the overload relay.The overload relay shuts the machine down despite being correctly set?➤ Contact the authorised KAESER SERVICE.7.5 Setting the motor overload protection switchElectrical diagram in chapter 13.4 gives the setting values for the motor overload protection switch.In direct on-line starting, the current for the fan motor is fed via the motor overload protectionswitch.To prevent the motor overload protection switch from being triggered by voltage fluctuations,temperature influences or component tolerances, the setting can be higher than the ratedmotor current.➤ Check the motor overload protection switch setting.The overload protection switch shuts the machine down despite being correctly set?➤ Contact the authorised KAESER SERVICE.7.6 Pouring cooling oil into the airendBefore starting the compressor for the very first time and before re-starting after a shutdown periodof more than 3 months it is necessary to manually add a quantity of cooling oil into the airend. Inorder to avoid that the cooling oil exceeds the permissible level, drain the required quantity fromthe de-pressurised oil separator tank.Chapter 10.16 provides detailed information on how to drain cooling oil from the oil separator tank.7 Initial Start-up7.4 Setting the overload protection cut-out48 Operating Manual Screw CompressorASK 901824 12 E
