Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual page 141

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5. From the back of the instrument, disconnect the cables shown in
valve to be exchanged.
Figure 104. Cables connected to valves
6. Using a 2.5 mm L-hex wrench, remove the four 2.5 mm hex screws that keep the valve in
place inside this compartment.
7. Pull out the valve, as shown in
Figure 105. Pulling out a valve
❖ To install a new rotary valve
1. Using a small flathead screwdriver, set the rotary switch on the PCB of the new valve,
shown in Figure 106, to the same address as the valve being replaced:
• Valve A=1
Figure 105.
EASY-nLC 1200 Troubleshooting & Maintenance Guide
6
Field Service Maintenance
Replacing a Rotary Valve
Figure 104 from the
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