3.3. Operation Operation Pre-start checks Cooling system – checking the coolant level, topping up coolant A wrong water/coolant mixing ratio will damage the radiator! Always mix water and coolant in the ratio 50:50. This also applies to countries with a hot climate. Danger of fire! Coolant may ignite at hot engine! Do not top up coolant, unless the engine has cooled down sufficiently. 1. Open the bonnet. 2. Check that the coolant level in the expansion tank is between the MAX and MIN markings. If the coolant level does not reach up to the MIN marking, top up coolant. 3. Therefore remove the cover cap of the expansion tank. 4. Top up coolant until the level reaches up to the MAX marking. 5.
After topping up, firmly close the cover cap. 6. Usually, the radiator needs not to be opened. However, for safety reasons it is required to check the refrigerant level in the radiator after 2000 operating hours (see "Cooling system – exchanging coolant and cleaning the system" on page 5-68). 7. If the expansion tank is empty again after a short period of time, immediately have the cooling system checked for leaks and have any leaks repaired in the garage. Checking the engine oil level – topping up oil NOTE After you have switched off the engine, wait at least 5 minutes before you check the engine oil level. The machine must stand on an even surface. 1.
Pull out the oil dipstick (1) and wipe off the oil with a clean cloth. 2. Completely re-insert the oil dipstick and pull it out again after a few seconds. The oil level must be between the (H) and (L) markings on the oil dipstick. 3. If the oil level does not reach up to the (L) marking, top up engine oil. For detailed information on recommended oils, see section "5.3. Lubricants, fuels and filling capacities" on page 5-18. 3-36 WA100M-5 – VEAM280201 CAUTION CAUTION 1 2