Maintenance Work; Filling The Wiping Water Container; Ant; Checking The Hydraulic Oil Level And Topping Up The Hydraulic Oil - Kärcher MC 250 Originalbetriebsanleitung

10.7 Maintenance work

10.7.1Filling the wiping water container

Note
Observe the manufacturer's specifications for wiping water
fluid and antifreeze. Do not mix antifreeze with other anti-
freeze.
Right-hand service flap
1
Lock
2
Wiping water container
3
1. Open the right-hand service flap.
2. Open the cap on the wiping water container.
3. Fill with r water liquid.
a If there is a risk of frost, add antifreeze according to
manufacturer's instructions.
4. Close the cap on the wiping water container.
10.7.2Checking the coolant level and topping up the
coolant
CAUTION
Risk of burns on account of hot components
Do not open or touch the radiator or parts of the cooling
system while the motor is hot.
CAUTION
Risk of injury due to pressurised cooling system
Carefully open the expansion tank (2 levels).
ATTENTION
Material damage due to incorrect coolant
Top up the coolant only when the engine is cold.
The water/antifreeze mixing ratio should be 60:40 to 50:50.
This usually corresponds to frost protection from -25 °C to
-40 °C.
The minimum mixing ratio should be 70:30 and the maxi-
mum mixing ratio 40:60. Further increasing the proportion
of antifreeze (e.g. 30:70), does not further improve the
freezing point.
The mixture of the coolant shall consist of deionised or dis-
tilled water and of radiator protection according to stand-
ards ASTM D 3306 Type 1 monoethylene glycol-based
with addition of organic inhibitors.
For coolant, see chapter "Technical data".
Right-hand service flap
1
Lock
2
Expansion reservoir
3
1. Check the filling level when the engine is cold.
2. Open the right-hand service flap.
3. Check the filling level in the expansion reservoir.
Note
The correct coolant level must be between MAX and
MIN. In case of severe loss of coolant, carry out trouble-
shooting and correct any faults found.
4. Top up the coolant if necessary.
Add coolant
5. Turn the cap of the expansion tank to open and remove
it.
6. Add approved coolant to expansion tank to top marking
(MAX).
7. Fit the cap of the expansion tank and tighten.
8. Close the service flap.
10.7.3Checking the hydraulic oil level and topping up
the hydraulic oil
Screw-in lid with air filter
1
Note
Replace the air filter annually or every 1000 hours of oper-
ation
Hydraulic oil filter
2
Note
May only be replaced by customer service according to the
inspection checklist (ICL)
Hydraulic oil filter
3
Note
May only be replaced by customer service according to the
inspection checklist (ICL)
Hydraulic tank
4
English 67