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5.1.2. MECHANICAL
5.1.2.1. VERIFY THAT ALL FRONT PANEL KNOBS ROTATE FREELY AND
THAT THE ZERO KNOB HAS A NYLON WASHER PLACED BEHIND IT.
5.1.2.2. VERIFY THAT THE SAMPLE CELL HOLDER COVER AND ITS RECEPTOR
IN THE INSTRUMENT’S COVER PANEL HAVE CLEARLY VISIBLE WHITE
ALIGNMENT LINES (FIDUCIARY MARKS). ALSO VERIFY THAT THE COVER
SCREWS FREELY ONTO THE RECEPTOR, AND THAT WHEN FULLY TIGHTENED
IT IS NOT IN CONTACT WITH THE BLACK BULKHEAD RETAINER.
5.1.2.3. REMOVE THE 2-INCH O-RING (PART NUMBER 51000-032) FROM
UNDER THE SAMPLE CELL HOLDER COVER. CLEAN THE COVER AND THE
BRASS CELL HOLDER SEAT. APPLY A VERY LIGHT COAT OF VACUUM
GREASE TO THE O-RING AND REINSTALL IT IN THE CELL COVER.
5.1.2.4. INSPECT THE SAMPLE CELL HOLDER TO MAKE SURE THAT IT HAS NO
SCRATCHES AND VERIFY THAT THE GAS INLET GROOVE IS CLEAN, FREE OF
DIRT AND THAT ITS FLOW PATH IS UNRESTRICTED.
5.1.2.5 VERIFY THAT ALL FITTINGS ARE SET ON TIGHTLY AND THAT ALL
SOLDER JOINTS ARE CLEAN, NOT COLD AND HAVE SHRINKABLE CLEAR
TUBING OVER THEM.
5.1.2.6. VERIFY THAT TWO PLASTIC TIES ARE WRAPPED AROUND BOTH THE
BIMBA BRAND AIR CHAMBER AND THE BRASS CELL HOLDER IN ORDER TO TIE
BOTH TOGETHER.
5.1.2.7. CLEAN ALL SPHERES, SAMPLE CELL CUPS AND SLEEVES WITH
ISOPROPYL AND A LINT-FREE TISSUE.
5.1.2.8. VERIFY THAT ALL THE SAMPLE CELL CUPS FIT SNUGLY INTO THEIR
SLEEVES AND THAT ALL SLEEVES FIT INTO THE BRASS SAMPLE CELL
HOLDER.