C
LEAN AND
R
EPLACE
V
ACUUM
F
ITTINGS
The interior of vacuum fittings should be wiped with a clean, lint-free cloth after each use to
remove any particles of sample that may have adhered to the fitting. If vacuum fittings become
clogged or damaged, they should be cleaned or replaced.
1. Remove the fittings to be cleaned or replaced from the flexible tubing.
1/2 in. or 12mm O-ring and
ferrule (for 1/2 in. or 12 mm
sample tubes)
3/8 in. or 9mm O-ring and
ferrule (for 3/8 in. or 9 mm
sample tubes)
2. To clean the fittings, disassemble them and clean the components with isopropyl alcohol
(IPA). If the fitting O-ring is cracked or broken, replace the O-ring.
Ensure adequate ventilation when using solvents for cleaning purposes.
3. Remove the two screws that hold the port nipple to the degasser. Remove the port nipple,
dust frit, and O-ring. Clean all components with IPA or use an ultrasonic bath may be used.
If the dust filter O-ring is cracked or broken, replace it. Reattach the dust frit, O-ring, and port
nipple.
Clean and Replace Vacuum Fittings
VacPrep Operator Manual
061-42802-01 (Rev B) — Apr 2021
5 - 13
