Kärcher HDS 9/50 De Tr1 Service Manual page 155

11.15.1 Check and top up coolant
CAUTION
Risk of damage!
Observe the brand of antifreeze used. The mixture can
cause a chemical reaction and hazardous substances can
be generated. Do not mix different antifreeze types.
WARNING
Risk of injury!
The motor can overheat if there is a lack of coolant. Turn
the motor off immediately and let it cool down.
If the motor is so overheated, that water vapors escape,
immediately turn the motor off and keep a safety distance
to the motor until the pressure has decreased.
Danger of burns! Never open the lid on the cooler while the
motor has operating temperature. The container is under
pressure.
1 Expansion tank motor coolant
 Check the filling level of the coolant in the expansion
tank of the motor coolant while the motor is cold. The
liquid level has to be between MIN and MAX.
 If necessary, refill coolant.
Open the cover on the expansion tank of the motor
coolant, fill in fresh clean water and the relevant anti-
freeze up to the max marking.
NOTE
Prior to every start-up, the filling level in the expansion tank
coolant must be checked.
Due to the space conditions in the filling area, do not use
containers of more than 5 litres for refilling.
1 Connection coolant hose (forward and return flow)
2 Connection from the expansion tank motor coolant
3 Drain screw coolant
4 Connection from the water distribution
5 Connection to the HP pump
Change of coolant
 Dismantle the protective plates from the bottom.
 Place tray for collecting the coolant underneath.
 Open the drain screw, drain coolant.
NOTE
Coolant quantity total: 5 litres
English 5.906-736.0 Rev. 00 (07/15)
155