[RASMB] Drive oil in the chamber issue

[John]

To all who may be concerned...

In October of 2009 Beckman had an EO (engineering order) to remove the 
drive oil heater resistor in all Optima L/XL drives. This includes XLA 
and XLI machines. It was found that under certain conditions the drive 
oil can "migrate" to the heatsink (top plate in the chamber). The EO 
describes removing the brown and grey wires on the drive connector which 
disconnects the drive internal resistor. All machines built after 
October 2009 have this modification. If your machine, or more 
importantly, your drive is older than that, the mod should be done. The 
drive oil level should also be checked.
Talk to your service person.

John Gunther
Rocky Mtn SIMS

ps; Thanks Tom for getting the turbo pump going.