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Model 360E Instruction Manual MAINTENANCE SCHEDULE & PROCEDURES
9.3. Maintenance Procedures
The following procedures are to be performed periodically as part of the standard maintenance of the Model
360E.
9.3.1. Replacing the Sample Particulate Filter
The particulate filter should be inspected often for signs of plugging or contamination. We recommend that when
you change the filter, handle it and the wetted surfaces of the filter housing as little as possible. Do not touch
any part of the housing, filter element, PTFE retaining ring, glass cover and the o-ring.
To change the filter:
1. Turn OFF the analyzer to prevent drawing debris into the instrument.
2. Open the M360E’s hinged front panel and unscrew the knurled retaining ring on the filter assembly.
Figure 9-1: Sample Particulate Filter Assembly
3. Carefully remove the retaining ring, PTFE o-ring, glass filter cover and filter element.
4. Replace the filter, being careful that the element is fully seated and centered in the bottom of the holder.
5. Re-install the PTFE o-ring with the notches up, install the glass cover, then screw on the retaining ring
and hand tighten. Inspect the seal between the edge of filter and the o-ring to assure a proper seal.
6. Re-start the Analyzer.
9.3.2. Rebuilding the Sample Pump
The diaphragm in the sample pump periodically wears out and must be replaced. A sample rebuild kit is
available – see Appendix B of this manual for the part number of the pump rebuild kit. Instructions and diagrams
are included with the kit.
Always perform a Flow and Leak Check after rebuilding the Sample Pump.
05232 Rev B3 159