The present disclosure relates to an agricultural system comprising: an agricultural baler (10) comprising a rotary input shaft (27) connectable by way of a baler driveline to a rotatable flywheel (28), the driveline comprising at least one heat generating component (149, 154, 158); a cooling fluid supply circuit (100) comprising at least one pump (190) for supplying cooling fluid to the at least one heat generating component (149, 154, 158); and a control unit (144) that is configured to: receive driveline-data indicative of a current and/or future status of the at least one heat generating component (149, 154, 158) of the driveline; determine a control-signal for controlling an amount of cooling fluid flow provided to the at least one heat generating component (149, 154, 158), on the basis of the driveline-data; and provide the control-signal to the cooling fluid supply circuit (100).