6
Troubleshooting
Mechanical Emergency Door Release
6-2
Cryofuge 5500i
Thermo Scientific
Mechanical Emergency Door Release
During a power failure, you will not be able to open the centrifuge door with the regular electric lid
release. A mechanical override is provided to allow sample recovery in the case of an emergency.
However, this should be used only in emergencies and after the rotor has come to a complete stop.
Always wait a few minutes until the rotor has come to a stop without braking. The brake does not work
when there is no current. The braking process lasts much longer than usual.
Proceed as follows:
1. Make sure the rotor has stopped (view port in the door).
2.
Pull out the power supply plug.
3.
On both sides of the housing are two white plastic plugs
,
which you can pry out of the back
plate
with a screwdriver or a knife.
Pull the release cords attached to it at the same time to trigger the mechanical door release.
The
door will open and the samples can be removed.
Figure 6-1.
Emergency Door Release
4. Push the release cords back into the centrifuge and mount the plug.
5. Reconnect the centrifuge once the power has been restored. Switch on the centrifuge. Press the
key to have the door locks operative again.
WARNING
The rotor can still be spinning at high speed. If touched, it can cause serious
injuries.
WARNING
Never use your hand or any tools to brake the rotor.
Note
You need to pull both release cords in order to unlock both locks.
Emergency Door Release
