10.6.3.2 Filling in cooling oil
To properly fill the machine with new cooling oil, the filling process must be carried out in three fill‐
ing steps, each with three specific cooling oil volumes. After each filling step, run the machine for a
short time in IDLE speed.
For specific cooling oil quantities of the three filling steps, see table 80.
Specific cooling oil volume
Value [qt]
Filling step 1
4.8
Filling step 2
3.2
Filling step 3
1.1
Tab. 80 Specific cooling oil volumes
Precondition Old cooling oil has drained completely.
Screw plug on the filler port has been removed.
Filling step 1
1. Fill the specific cooling oil volume for filling step 1 into a suitable container.
2. Fill the cooling oil into the filler port on the oil separator tank using a funnel.
3. Replace the plug in the filler port.
4. Close the door.
5. Prepare machine for operation.
6. Start the machine and run it in IDLE speed for a short time.
7. Switch off the machine.
8. Wait until the machine has automatically vented.
9. Open the door.
10. Loosen and remove the screw plug from the filler port.
Filling step 2
1. Fill the specific cooling oil volume for filling step 2 into a suitable container.
2. Repeat steps 2 - 10 from “Filling step 1”.
Filling step 3
1. Fill the specific cooling oil volume for filling step 3 into a suitable container.
2. Repeat steps 2 - 10 from “Filling step 1”.
Checking the cooling oil level
1. Check the cooling oil level after about 5 minutes.
Cooling oil level too low.
➤ Top off with more cooling oil.
2. Install the screw plug with a new gasket on the filler port.
3. Tighten the screw plug.
10 Maintenance
10.6 Compressor Maintenance
No.: 902366 10 USE
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M55 PE SIGMA CONTROL SMART pV
139
