Index revision : C - November 2017 29 7030
5. Maintenance
5.1. Shut-down and start-up procedures
Important recommendations
Comply with the air settings given in Section 3.2.
The rotor and stator become inoperable if the bearing air is cut off during rotation.
The bearing air pressure must be at least 6 bar at the quick-disconnect plate.
(*For hose lengths greater than 4.5 m, the correct air pressure value is determined by taking the
measurement at the quick-disconnect plate).
Check that the speed regulating module transmits a signal.
5.1.1. Shut-down Procedure
Important steps to follow:
• Step 1: Stop spraying (PV 51 shut)
• Step 2: Switch off the high-voltage power supply,
• Step 3: Perform a circuit rinse cycle*,
• Step 4: Cut off the shaping air,
• Step 5: Cut off turbine rotation air and wait until the turbine comes to a complete stop (0
rpm),
• Step 6: Cut off the bearing air.
WARNING : * The rinsing cycle must end with a compressed air sequence, circuits 31,32 and 36
must be purged and dried before restarting the high voltage.
WARNING : The turbine must never be stopped by cutting off the bearing air supply.
Wait until the turbine has come to a complete stop before cutting off the bearing
air.
5.1.2. Start-up Procedure
Important steps to follow:
• Step 1: Switch on the bearing air supply (6 bar),
• Step 2: Start up turbine rotation,
• Step 3: Switch on the shaping air supply,
• Step 4: Switch on the high voltage supply,
• Step 5: Start up atomisation.
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