Preparation For Test; Disassembly; Inspection Of Components; Cleaning - PAC Alcor JFTOT II Manual

Jet fuel thermal oxidation tester
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2. PREPARATION FOR TEST

Protection provided by this equipment may be
impaired if used with accessories not provided
or recommended by the manufacturer or used in
a manner not specified by the manufacturer.

2.1 DISASSEMBLY

All the steps required for disassembly of the test
section are given in Section 4.

2.2 INSPECTION OF COMPONENTS

1. Inspect the fuel and water reservoir cover O-
rings for cuts, abrasions, and excessive swelling;
replace as necessary.
2. Inspect all O-rings used on all line fittings for
cuts, abrasions, and excessive swelling; replace
as necessary.
3. Inspect the glass jar seal located inside the air
trap assembly for cuts, abrasions, and excessive
swelling; replace as necessary.
4. Inspect the insulators and replace if they are
cracked chipped, or otherwise damaged.
5. Inspect all stainless steel components for dam-
age; replace as necessary.
6. Inspect the lip seal for cuts, abrasions, or exces-
sive swelling; replace as necessary. When
installing a lip seal on the piston, be careful not to
nick the inner and outer mating surfaces of the lip
seal. Before installing the new lip seal, check the
piston lip seal mating surface for scratches. To
prevent leaks, there must be a proper seal
between the piston and lip seal.
CAUTION: The lip seal is made from virgin
Teflon
and is very soft. Use extreme care
®
when handling to prevent damage. A small
nick will ruin the seal and allow fuel to leak.
7. Inspect the inner surface of the fuel reservoir for
scratches. The inside surface of the fuel reser-
voir must be free of scratches. Hold the clean,
JFTOT II D3241 Manual Rev. C
dry reservoir up to a light and look through it to
detect any scratches. To prevent leaks, there
must also be a proper seal between the reservoir
and lip seal.

2.3 CLEANING

1. Wear protective gloves to protect skin from
solvents. There are three appropriate solvents for
general cleaning: cyclohexane, n-heptane, and
2,2,4 trimethyl pentane (isooctane).
2. Place a clean piece of aluminum foil about
50 x 50 cm or larger on the bench for placing all
test section components after cleaning. Use a
large shallow pan to catch spent solvent from the
following cleaning steps.
3. Using the wash bottle filled with solvent, flush the
fuel and water reservoir cover O-rings.
CAUTION: The lip seal is made from virgin
Teflon
and This solvent will irritate the skin
®
after a short time. Use rubber gloves. It is
recommended that gloves not be reused. The
solvent is flammable and harmful if inhaled.
Page 3

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