Fig. 35 Changing the cooling oil, heat recovery system
1 Hose coupling
2 Thermostatic valve
3 Shut-off valve
1. Have an oil receptacle ready.
2. Insert the male hose fitting 6 (from 32) in the hose coupling 2 .
3. Place the end of the maintenance hose in the oil receptacle and secure it in place.
4. Open the shut-off valve 3 (and 7 from 32) and allow the oil to drain completely.
5. Close the shut-off valve 3 and unplug the male hose fitting.
Filling with oil
1. Open the filler plug 4 (from 32) slowly.
2. Fill with cooling oil.
3. Check the filler plug and ring seal for damage and screw the plug back in again.
Starting the machine and carrying out a trial run
1. Close all access doors, replace and secure all removable panels.
2. Open the user's shut-off valve between the machine and the compressed air network.
3. Switch on the power supply and reset the maintenance interval counter.
4. Start the machine and check the oil level again after about 10 minutes, topping up if necessary.
5. Switch off the machine and visually check for leaks.
➤ Dispose of used oil in accordance with environmental protection regulations.
10.16 Changing the Oil Filter
The machine must be isolated from the compressed air system and completely vented before
undertaking any work on the pressure system.
Material Replacement part
Cooling oil container
Precondition The power supply disconnecting device is switched off
The disconnecting device is locked in the off position
A check has been made no voltage is present
The machine is fully vented, the pressure gauge reads 0 psig.
10 Maintenance
10.16 Changing the Oil Filter
78
Service Manual Screw Compressor
ASD T Tri-Voltage 9_5721 06 USE
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