Fig. 50 Radiator with centralised drainage
1
Filler cap
2
Coolant expansion tank
3
Water cooler
4
Radiator drain
5
Screw plug
6
Drain valve (ball)
7
Drain hose
1. Unscrew and remove the expansion tank filler cap
1
.
2. Place the coolant receptacle below the radiator drain point
4
.
3. Remove the plug
5
, open the shut-off valve
6
and collect the coolant.
4. Close the valve and replace the plug with sealing ring.
5. Close the door.
➤ Dispose of used coolant in accordance with environmental protection regulations.
Further information The operating manual supplied by the engine manufacturer provides further information on coolant
change and cleaning the cooling system.
10.4.2 Air filter maintenance
Clean the filter according to the maintenance schedule or if the maintenance indicator shows this to
be necessary.
Renew the air filter element after 2 years at the latest or after it has been cleaned 5 times.
Using the engine without an air filter element is not permitted! Do not use an air filter element
with damaged folds or gasket.
Material Compressed air for blowing out
Spare parts (as required)
Cleaning cloth
Precondition The machine is shut down.
The machine is fully vented, the pressure gauge reads 0 bar.
Machine is cooled down.
All compressed air consumers are disconnected and the air outlet valves are open.
10 Maintenance
10.4 Engine
No.: 9_9425 01 E
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
107
