Chapter 1
Suggested Maintenance Schedule
Preventive Maintenance
Maintenance and Troubleshooting Manual
23
.
Table 1-1.
Standard Maintenance Schedule
Frequency
Task
Daily
Run performance check standard as required by method.
Run calibration curve as required by method.
Note gas pressure when the weekly pressure check shows it to be
below 5000 kPa (50 bar or 750 psig).
Weekly
Change injector liner.
Check pressure of gas cylinders. Replace the cylinder when its
pressure drops below 3500 kPa (35 bar or 500 psig).
Change S/SL septum.
Change PTV septum.
Change PKD septum.
Change PPKD septum.
Change OC septum.
Perform the Leak Test procedure.
Monthly
Check for leaks from the primary gas supply to the GC.
Semiannually
Regenerate the S/SL inlet vent line trap.
Regenerate the PTV inlet vent line trap.
Replace FID jet.
Clean FPD windows and stainless steel mirror.
Clean PID cell and UV lamp window.
Replace NPD source and clean collector.
Clean or replace ECD collector.
Recondition or replace internal and external traps.
