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3
Removing the door seal O-ring
1. While the door is open, turn off the POWER switch and unplug the power cord from the wall
outlet.
2. Open the door completely. Then hold the handle of the door and pull up the door.
Door seal O-ring
Figure 3-1. Removing the door seal O-ring
3. Use a toothpick etc. to take the door packing out of the groove. At that time, be careful not to
damage the door seal O-ring or groove.
4. Clean the door seal O-ring and groove. If the door seal O-ring is damaged, replace it.
5. Apply a thin coat of vacuum grease to the door seal O-ring, insert it into the groove, and close the
door.
Vacuum pump
If the VACUUM alarm is displayed frequently, the vacuum pump oil may have deteriorated, the oil
mist trap may be clogged or the vacuum pump may have problem. The vacuum pump oil should be
changed once a year to prevent deterioration of the vacuum pump and clogging of the oil mist trap.
Note that the oil change frequency may differ depending on the use conditions and the environment.
Call a service representative when an oil change is required or any trouble occurs.
Oil for the vacuum pump is furnished with this micro-ultracentrifuge. Store it in a safe place and give it
to the service representative if requested.
Others
(1) Support period for service parts
Service parts are kept in stock seven years after the discontinuation of production.
The term "service parts" means the parts that are necessary to ensure the correct functioning of the
micro-ultracentrifuge.
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Sorvall MTX 150
Handle
Thermo Scientific
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