8. REPLACEMENT OF THE AIR/OIL SEPARATOR ELEMENT
Dispose the used separator element according to the local regulations. Wait for the compressor to cool down before beginning the mainte-
nance work.
In order to change the separator element, follow the procedures indicated in Table 13.3.
- See item 1 - Procedures before beginning maintenance.
- Turn off the compressor and wait for at least 5 (five) minutes for the elimination of the pressure from the system.The air/oil tank has a
pressure gauge. Check if the tank is completely depressurized before performing the next step.
- Remove the bolts that fasten the cover of the air/oil tank.
- Remove the cover of the tank.
- Clean the sealing surfaces of the tank and of the cover and replace the gaskets.
- Clean the tank if necessary.
- Install the new separator element and make sure it is well coupled. Take care not to contaminate the element; hold it by the metal ends.
- Assemble the upper cover of the air/oil tank, taking care for the upper gasket to be properly coupled.
- Tighten the bolts alternately with a torque wrench [pre-torque of 15 to 25Nm / final torque of 70 to 80Nm].
- Update the information of number of hours for the next change of the separator element on the electronic interface of the compressor.
The number to be set is indicated in the parameter table attached to the information folder of your compressor. (Procedure necessary for
electronic compressors only).
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9. MAIN ELECTRIC MOTOR BEARING
In order to perform the maintenance of the main electric motor bearings, follow the procedures indicated in item 1. Grease the electric motor
bearings as indicated in its plate. For further information, refer to the instruction manual of the motor.
10. RETIGHTENING OF ELECTRICAL WIRING
Before beginning the retightening of the wiring connections, proceed as indicated in item 1. Then retighten the wiring connections of the
start switch (connectors of relays, contactors, power cables, etc).
11. CLEANING OF THE RADIATOR
A clogged radiator increases the temperature of the compressor until turning it off for
overtemperature.
Before beginning the cleaning of the radiator, proceed as indicated in item 1. To clean the
radiator (Figure 13.12) externally, use compressed air from outside to inside. To better
clean the radiator, brush the internal lower surface.
Performs external cleaning of the radiator weekly.
Note: Do not use metal brushes to clean the radiator.
12. GAUGING
Perform the gauging of the safety valve(s) and pressure gauges at an accredited reputable lab. This operation must be carried out with the
device not assembled on the tank.
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FIGURE 13.10
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FIGURE 13.11
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FIGURE 13.12