Care and maintenance work 6.3 Cooling system Regulations for working on the cooling system Danger of scalding with hot coolant! Cooling system is under pressure! Only open the cap in the cooled state! Coolant must have a prescribed coo- ling system corrosion protection ( 26 ) concentration ! Observe the safety regulations and na- tional specifications for handling coo- ling media. In case of an external cooler, proceed according to the ma- nufacturer’s specifications. Dispose of leaking coolant properly and do not al- low them to seep into the ground. Or- der cooling system corrosion protection agents from your DEUTZ partner. ( 26 ) .
1 °C 2 6 Checking the coolant additive concentration z Open the cooling system cap carefully. z With a conventional antifreeze measuring instrument 1 (e.g. hydrometer, refractome- ter), check the coolant additive concentrati- on in the cooler / compensation tank 2 . z For necessary coolant additive concentrati- on, see ( 26 ) . The appropriate test device can be obtained from your DEUTZ partner under the order number 1824. Emptying the cooling system z Open the cooling system cap carefully. z Place a collecting receptacle underneath the screw plug (arrow). This is also available on the opposite side. z Unscrew the screw plug and sealing ring, drain the coolant.
z Fit new sealing ring to screw plug, turn in and tighten it (tightening torque 38 Nm). z Check for tightness. Checking the coolant level in an external cooler z Fill in new coolant and vent the system ac- cording to the cooling system manufactu- rer’s specifications. z Open the cooling system cap carefully. z The coolant level must always be between the MIN and MAX marks of the compensati- on tank! Fill up to the MAX mark if necessa- ry. 34