Maintenance
84
Cleaning the excavator
Before cleaning, shut down the engine and secure it against starting.
If a steam cleaner is used for cleaning the excavator, do not direct the steam jet at electric com-
ponents.
Do not direct a water jet into the intake opening of the air filter.
Do not clean the excavator with inflammable liquids.
The excavator may only be washed at suitable places (using oil and grease separators).
The excavator can be cleaned with water and a commercial cleaning agent. Make sure no water gets into the
electrical system.
Use a plastic cleaner for plastic parts.
Maintenance
Adhere to the instructions for regular servicing to keep the excavator in good condition.
Refilling the coolant
Check the antifreeze content with an antifreeze tester that is qualified for -25 °C.
The antifreeze portion of the coolant should not exceed 50%.
Open the engine hood (page 74).
Open the coolant expansion reservoir cap while the engine
is cold and fill pre-mixed coolant up to the FULL mark (1).
If the coolant expansion reservoir was completely empty,
check the coolant level in the radiator.
Do not open the radiator cap while the engine is still
hot, risk of scalding.
Remove the radiator cap (2) by turning it anticlockwise.
The coolant level should be at the lower mark of the filler
plug; if not, add coolant.
Refit the radiator cap and close the expansion reservoir.
Close the engine hood.