10.4.1 Radiator maintenance
Material Coolant
Coolant tester
Receptacle
Drain hose
Funnel
Cleaning cloths
Precondition The machine is shut down.
The machine is standing level.
The machine is fully vented, the pressure gauge reads 0 bar.
Machine 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.
➤ Allow the machine to cool down before opening the enclosure.
CAUTION
There is danger of injury 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.
CAUTION
Insufficient coolant can damage the engine.
Insufficient coolant will cause the engine to overheat. Overheating can cause serious damage to the
engine.
➤ Check the coolant level daily.
➤ Top up the coolant as necessary.
10.4.1.1 Checking coolant level
Check the coolant level of the engine daily before starting.
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 with the engine cooled down.
10 Maintenance
10.4 Engine
No.: 9_6975 00 E
Service Manual Screw Compressor
M135 SIGMA CONTROL MOBIL
103
