Assembly Of Heater Tube Test Section - PAC Alcor JFTOT II Manual

19. Flush the glass aeration tube with solvent.
20. Using a brush (preferably metal) saturated with
trisolvent, brush the inside surfaces of the heater
tube housing. This is the only component that
requires cleaning with trisolvent.
WARNING: Trisolvent is a blend of equal parts
of acetone, toluene and isopropanol. It is
extremely flammable and the vapors are
harmful.
21. Flush the heater tube test section and filter
bypass line with solvent and blow dry with the
squeeze bulb. Visually inspect the inner surfaces
of the heater section for cleanliness. Repeat
cleaning procedure as required to remove all
deposits.
22. Flush the insulators and heater tube test section
nuts with solvent.
Page 6
2.4 ASSEMBLY OF HEATER TUBE TEST
SECTION
1. A new ALCOR heater tube, test filter, and three
high temperature O-rings are required for each
test.
NOTE - Heater tubes should not be re-used. Tests
indicate that magnesium migrates to the heater
tube surface under test conditions. Surface
magnesium may reduce adhesion of deposits to
the heater tube surface.
NOTE - use caution when removing the heater
tube from its protective plastic container. To
prevent bending of the tube, hold the plastic
container at one end with two or three fingers
and pull the cap off (do not pry).
a. Prior to assembly of test parts, place the
heater tube to be used into a visual tuberator
for inspection (see Heater Tube Deposit
Rating in the Operation Manual) Inspect the
center (smaller diameter) portion of the
tube, and reject any tube showing scratches,
dull or unpolished area, or other visual
defects in the center area.
JFTOT II D3241 Manual Rev. C