Maintenance maintenance and troubleshooting 11-13 – Bio-Rad BioLogic Signal Import Module (SIM) User Manual

Page 206

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11.7 MAXIMIZER VALVES

Over time, the Maximizer valves may become worn and require replacement. Indications of valve damage
include valve leaks and valve switching problems. To replace a valve, you’ll need a standard 9/64” hex key;
one has been provided for this purpose.

Safety Note: Before removing a valve, be sure to flush any hazardous material from the valve. Wear
protective clothing, as appropriate.

To remove the valve, follow the procedure below and refer to Figure 11-9:

1.

Use the 9/64” hex key to remove the two screws that attach the valve to the Maximizer. Set the
screws aside.

2.

Lower the front of the valve to disengage the outlet tubing from the top of the valve.

3.

Slowly pull away the valve to expose the wiring behind the valve.

4.

Using your fingers, press the connector latch to separate the valve wiring from the Maximizer wiring.

Figure 11-9. Replacing a Maximizer Valve

To attach the new valve, follow the procedure below:

1.

Connect the valve wiring to the Maximizer wiring.

2.

Place the valve against the Maximizer, but do not reattach the screws at this time. Rotate the valve
slightly downward until you can engage the valve with the output tubing to the Workstation.
Reattach the output tubing using its fittings.

3.

Reattach the valve mounting screws.

B1

WATER

B2

SAL

T

VAL

VE B

10

10

B1

WA

TER

B2

SAL

T

VAL

VE B

REMOVE MAXIMIZER VALVE

DISCONNECT MAXIMIZER VALVE

MAINTENANCE

MAINTENANCE AND TROUBLESHOOTING

11-13

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