Maintenance ECA 45068 Instruction 0024-94004.5 Replacing Internal Particulate FilterAn internal particulate filter is located at the inlet of the pump to protect thepump in the event dirt is drawn into the analyzer’s GAS inlet. Under normaloperating conditions, the probe’s water trap / filter assembly should catch alldirt particles large enough to damage the pump. But if the probe’s filter failsor is disconnected, the internal particulate filter will provide backupprotection.Do the following to replace the internal particulate filter:Material Required:• Medium Phillips screwdriver• Replacement Internal Particulate Filter (refer to Section 6.1)Procedure:1. Turn off analyzer and remove screws from control panel.2. Lift up front of control panel to gain access to the particulate filterlocated on the right-hand side of the analyzer. See Figure 4-4.3. Remove tubing from old filter; then discard filter.4. Install tubing onto new filter, being sure to position the filter so that itsflow-arrow points toward the pump. Then reinstall control panel.Figure 4-4. Replacing the Internal Particulate FilterPARTICULATE FILTER(Install with arrow pointingtoward inlet of pump)
