Metrohm 889 IC Sample Center - Manual (Page 42)

5.3 Maintenance and service
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889 IC Sample Center
The needle moves into the exchange position.
4 Open the door of the 889 IC Sample Center.
5 If working with the cooling option, remove the covering of the cool-
ing option by pulling it towards the front.
6 Press the two buttons on the sides of the device simultaneously.
7 Remove the covering by pulling towards the front.
8 Loosen the nut 3 of the capillary connection.
9 Undo the tubing connection at Port 4 on the injection valve.
10 Remove the sample needle by pulling it upward and out of its seat.
11 Load a new sample needle. Ensure while doing so that the seal sur-
rounds the needle.
12 Tighten the sample needle with the connection nut.
13 Mount the other end of the capillary connection to port 4 of the
injection valve. Do not screw too tightly. This may block the tubing
connection.
14 Put the device covering back into position.
15 If working with the cooling option, replace the covering of the cool-
ing option.
16 Close the door of the 889 IC Sample Center.
17 Select the General tab in the manual control and start the Reset
device function.
The sample needle moves back to the starting position.