
346 GAS ANALYZER
4. Inspect the O-rings located in both halves of the check valve for cracking.
5. Blow-dry the brown cartridge using shop air.
6. Place the cartridge back in the case halves, the spring side facing the Gas Analyzer.
7. Twist the check valve halves together clockwise until they lock.
8. Perform a Leak Test to assure system integrity. (See Section Leak Test on page 349.)
CAUTION
CAUTION!
Do not use hydrocarbon-based cleaners to clean check valve
cartridge.
CHECK
VALVE
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