Biotage Isolera Four, User Manual

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411829-L, Maintenance April 2012 Page 5-10
5
5.11 Replace the Fuses
WARNING
The system uses double-pole fusing (both sides of the line are fused). Fire
hazard; always replace with the same type and rate fuses only. If the
system is damaged or does not function properly, contact Biotage 1-Point
Support for repair information (see contact details on page 7-1).
1. Shut down the system as described on page 4-1.
2. Disconnect the power cord from the power outlet.
3. Unplug the power cord from the rear of the system. (You will not be able to remove the fuse
holder if the power cord is plugged in.)
4. Loosen the fuse holder by carefully prying under the notch on the left side of the holder with a
small standard (flat blade) screwdriver; see Figure 5-8.
Figure 5-8. Loosen the Fuse Holder
5. Grasp the fuse holder with your fingers and pull it out of the system.
Figure 5-9. Replace the Fuses
6. Replace the two fuses with new fuses of the same type and rate, 4.0 TA/250 V (P/N 411916).
7. Put the fuse holder back in place.
5.12 Replace the Needle
1. Shut down the system as described on page 4-1.
2. Remove the malfunctioning needle.
3. Assemble the new needle, ferrule, and peek nut (P/N 411915 for Ø1.65 needle and P/N 412616
for Ø3.2 needle). Ensure that the needle is aligned with the end of the ferrule; see Figure 5-10.
Figure 5-10. Assemble the Needle, Ferrule, and Nut
Fuse
Fuse holder
Needle Peak nut Ferrule