9 Maintaining the FID
To Replace an FID Jet
148 Maintaining Your GC
Handle the clean or new jet only with tweezers, or wear gloves.
6 Loosen the jet, then lift it out of the housing with tweezers.
7 Clean the detector base cavity using solvent, a swab, and compressed air or nitrogen.
8 Use tweezers to lower the new jet into the housing.
Do not overtighten the jet! Overtightening may permanently deform and damage the jet, the
detector base, or both. The torque specification is 10 inch-pounds.
9 Carefully screw the jet into the housing. Tighten 1/6-turn past finger-tight (1/6-turn is one
“flat” on a typical screwdriver handle, or the jet head).
Interconnector
spring
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