KAESER SM 7.5, Руководство оператора

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Fig. 30 Changing the cooling oil, oil separator tank
1
Hose coupling (air cooler venting)
2
Pressure gauge
3
Hose coupling (oil separator tank venting)
4
Oil filler port with plug
5
Cooling oil level indicator
6
Male hose fitting
7
Shut-off valve
A
Shut-off valve (open)
B
Shut-off valve (closed)
8
Maintenance hose
9
Hose coupling (oil drainage)
10
Shut-off valve (venting line)
11
Shut-off valve (oil drainage)
Changing the oil with internal pressure Oil change with an external compressed air
source
The machine has been running at least 5 mi‐
nutes in LOAD mode.
The machine is fully vented,
the pressure gauge on the oil separator tank
reads 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 the machine.
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,
the absence of any voltage has been verified.
The machine is fully vented,
the pressure gauge on the oil separator tank
reads 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 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.
10 Maintenance
10.16 Changing the cooling oil
70
Operator Manual Screw Compressor
SM Tri-Voltage, SIGMA CONTROL 2
9_5875 33 USE