7 | Maintenance
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6.2 Switch Off
• Vent the machine at a pressure between atmospheric pressure and 650 hPa.
• Close the cooling liquid injection.
• Let the machine run for 1 minute.
• Stop the machine
• Close the cooling liquid supply.
6.3 Restart Procedure
Prior to restart the system, ascertain the reason for the emergency stop.
Resolve the problem.
• With the machine electrically isolated from the power supply and vacuum system, all
appropriate safety precautions, warning boards, safety equipment and perimeter must
put into place.
• Drain and collect any residual liquids from the pumping chamber, in compliance with
all local restrictions and requirements.
Make sure that the machine is empty. Replace all previously removed drain plugs.
When the work has been completed follow the procedure
Start-Up [
►
23]
.
• Remove the warning board and safety perimeter.
• Check the oil levels, see
Oil Level Inspection [
►
26]
.
• Connect the machine to the power supply.
• Make sure that the installation conditions are followed, see
Installation Conditions
[
►
11]
.
• Open the cooling liquid supply (CLI).
• Start the machine.
• Open the injection cooling liquid into the cylinder (INJ), adjust the flow rate to the re-
quired amount to maintain the max.exhaust gas temperature < 80 °C.
7
Maintenance
WARNING
Machines contaminated with hazardous material.
Risk of poisoning!
Risk of infection!
If the machine is contaminated with hazardous material:
• Wear appropriate personal protective equipment.
CAUTION
Hot surface.
Risk of burns!
• Prior to any action requiring touching the machine, let the machine cool down first.
Summary of Contents for COBRA ATEX
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