KAESER ASK 28, Operating Manual

Page: 88 / 138

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