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5.5.1 Cleaning Instructions
When it becomes necessary to clean the rectifier, follow the instructions below:
Ventilation system:
Cut off the rectifier supply and wait 10 minutes.
Remove the dust accumulated at the ventilation inlets with a plastic brush or a flannel.
Remove the dust accumulated on the heatsink fins and on fan blades using compressed air.
Electronic boards:
Cut off the rectifier supply and wait 10 minutes.
Remove the dust accumulated on the boards using an anti-static brush or ionized compressed air (E.g.: Charges
Burtes Ion Gun (non nuclear) reference A6030-6DESCO).
If necessary, remove the boards from the rectifier.
Use always an ESD wrist strap.
Inspect the heatsink fins of the power units regularly verifying if there is any dirt accumulation that could impair
the rectifier cooling. In order to do that, remove the power unit side cover.
Figure 5.2 - Cover to get access for inspection/cleaning of the heatsink fins
Troubleshooting and Maintenance
Heatsink fin
cleaning openings
5
UR11 | 5-5
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