10.3.1 Water cooler maintenance
Material Coolant
Coolant tester
Cooler cleaning agent
Receptacle
Wrench
Funnel
Cleaning cloths
Precondition The machine is switched off.
The machine is standing level.
The machine is fully vented, the pressure gauge reads 0 bar.
The machine has cooled down.
All compressed air consumers are disconnected and the air outlet valves are open.
WARNING
Danger of scalding by hot coolant!
Serious injuries can be caused by hot coolant.
➤
Let the machine cool down before opening the cooling system.
CAUTION
Risk of chemical burns from coolant containing antifreeze!
➤
Avoid eye and skin contact with coolant. If the eyes are affected, rinse immediately with
running water.
➤ Wear protective glasses and gloves.
NOTICE
Insufficient coolant can damage the engine.
Insufficient coolant will cause the engine to overheat. Overheating can cause serious dam‐
age to the engine.
➤ Check the coolant level daily.
➤ Top up the coolant as necessary.
➤ Open the left-hand door.
10.3.1.1 Checking coolant level
The coolant level in the engine cooling circuit must be checked daily prior to startup.
The level is checked on the coolant expansion tank.
■
The tank is semi-transparent so the coolant level can be seen from outside.
■ The level should be between the
minimum and maximum markings
when the engine has
cooled down.
10 Maintenance
10.3 Engine maintenance
98
Operator manual Portable compressor
M 64 No.: 9_5898 26 E
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