3 Maintenance Procedures
108
September 26, 2013, 715004208 Rev. A
To remove the primary head:
1. Flush the ISM with nonhazardous solvent.
2. In the Instrument console, select Isocratic Solvent Manager from the
system tree.
3. In the ISM information window, click Maintain > Heads.
4. In the Head Maintenance dialog box, select the primary head.
5. Click Move Backward, and then wait for the plunger to stop.
6. Power-off the ISM.
7. Move the solvent bottles to a location below the solvent manager.
8. Unscrew the low-pressure filter holder from the primary check valve
inlet.
Caution:
To avoid damaging electrical components or circuitry of a
system module, do not disconnect an electrical assembly from the
module while the module remains connected to the ac supply
source.
Follow this procedure to completely interrupt power to the module:
1. Set the module’s power switch to Off.
2. Disconnect the module’s electrical supply cord from the ac
source.
Afterward, wait 10 seconds thereafter before you disconnect an
assembly.
Low-pressure filter holder
Primary check valve inlet