Draining the oil from the heat exchanger
Fig. 33 Changing the cooling oil Heat recovery
1 Hose coupling
3 Shut-off valve
6 Plug-in nozzle
7 Shut-off valve
8 Maintenance hose
1. Prepare a cooling oil receptacle.
2. Insert the male hose fitting 6 in the hose coupling 1 .
3. Place the other end of the maintenance hose in the oil receptacle and secure it in place.
4. Open the shut-off valves 3 and 7 and allow the oil to drain completely.
5. Close the shut-off valve 3 and unplug the male hose fitting.
➤ Dispose of used oil in accordance with environment protection regulations.
Filling with cooling oil
Fig. 34 Changing the cooling oil Filling with cooling oil
2 Pressure gauge
4 Oil filler port with plug
5 Cooling oil level indicator.
10 Shut-off valve (venting line)
1. Open the shut-off valve 10 in the venting line.
2. WARNING!
Compressed air!
Compressed air and devices under pressure can injure or cause death if the contained energy
is released suddenly.
➤ Fully vent all pressurised components and enclosures.
3. Open the filler plug 4 slowly.
10 Maintenance
10.16 Changing the cooling oil
78
Operating Manual Screw Compressor
ASK 901824 12 E
Option W2/W3
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