KAESER AIRTOWER 3C, Руководство оператора

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Changing the oil with internal pressure Changing the oil with an external compressed
air source
The machine has been running at least 5 mi‐
nutes under LOAD mode.
The machine is completely vented to atmos‐
pheric pressure,
both pressure gauges
2
and<pos-number>9</
pos-number> (see Fig. 23) are showing 0 psig.
1. Close the shut-off valve
10
in the venting
line.
2. Start the machine and watch the oil separa‐
tor tank pressure gauge
2
until it reads 43–
73 psig.
3. Switch off and lock out the power supply
disconnecting device and verify the absence
of any voltage.
4. Wait at least 2 minutes to allow the oil to
flow back to the separator tank.
The power supply disconnecting device is
switched off,
The device is locked off,
A check has been made that no volage is
present.
The machine is completely vented to atmos‐
pheric pressure,
both pressure gauges <pos-number>2</pos-
number> and<pos-number>9</pos-number>
(see Fig. 23) are showing 0 psig.
An external source of compressed air is availa‐
ble.
1. Close the shut-off valve
10
in the venting
line.
2. With the shut-off valve closed, insert the
male hose fitting
6
into the hose cou‐
pling
3
.
3. Connect the maintenance hose to the exter‐
nal air supply.
4. Open the shut-off valve
7
until the pressure
gauge
2
on the oil separator tank reads 43–
73 psig.
5. Close the shut-off valve
7
and remove the
male hose fitting from the coupling.
Draining the oil from the separator tank
Contact an authorized KAESER service representative if condensate is detected in the cool‐
ing oil.
It is necessary to adapt the airend discharge temperature to individual ambient conditions.
Precondition The power supply disconnecting device is switched off,
The device is locked off,
A check has been made that no voltage is present.
1. Have an oil receptacle ready.
2. With the shut-off valve closed, insert the male hose fitting
6
into the hose coupling
9
.
3. Place the other end of the maintenance hose in the oil receptacle and secure it in place.
4. Open the shut-off valve
11
.
5. Slowly open the shut-off valve
7
in the maintenance hose and allow oil and air to drain com‐
pletely.
Pressure gauge on the oil separator tank indicates 0 psig.
6. Close the shut-off valve
11
and unplug the male hose fitting.
➤ Dispose of used oil in accordance with environment protection regulations.
10 Maintenance
10.11 Changing the cooling oil
70
Operator Manual Screw Compressor
AIRTOWER 3C–7.5C Tri-Voltage
9_6917 34 USE