Draining the oil from the tank
Fig. 35 Changing the cooling oil, oil tank
1 Oil tank
2 Hose coupling (oil drainage)
3 Shut-off valve
6 Male hose fitting
7 Shut-off valve
1. Have an oil receptacle ready.
2. With the shut-off valve closed, insert the male hose fitting 6 into the hose coupling 2 .
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.
Draining the oil from the external heat recovery system
If the machine is connected to an external heat recovery system, drain the oil from the heat exchanger
at a suitable point.
Precondition The power supply isolating device is switched off,
the device is locked off,
a check has been made that no voltage is present.
The machine is fully vented, the pressure gauge on the oil separator tank reads 0 psig.
1. Have an oil receptacle ready.
2. Open the external heat recovery system and allow the oil to drain completely.
3. Close the external heat recovery system.
Draining cooling oil from the internal heat exchanger
A shut-off valve is provided for draining the oil from the heat exchanger.
10 Maintenance
10.16 Changing the cooling oil
82
Service Manual Screw Compressor
BSD 9_5708 08 USE
Option K2
Option W1
Option W2/W3
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