Assembly Of Heater Tube Section - PAC Alcor JFTOT II Manual

WARNING - Trisolvent is a blend of acetone,
toluene and isopropanol. It is extremely
flammable and the vapors are harmful. See
Appendix A1.
Flush the heater tube housing with solvent and blow
dry with a squeeze bulb. Visually inspect the inner
surfaces of the heater tube housing for cleanliness
and repeat cleaning with trisolvent as required to
remove all deposits.
4.3 ASSEMBLY OF HEATER TUBE
SECTION
A new heater tube, test filter, and three O-rings are
required for each test. During assembly be sure your
hands are clean or wear clean, dry gloves. Handle
the heater tube by the ends only. If the center section
of the tube is touched, reject the tube as the deposit
forming characteristics on the tube will be adversely
affected.
NOTE - Do not reuse heater tubes. 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.
Inspect the heater tube.
a. use a visual tuberater to inspect the center section
(see Section 5, Heater Tube Deposit Rating).
Reject any tube showing scratches, unpolished
area, or other visual defects.
b. examine the tube for straightness. Roll the tube on
a flat surface and note any variation in gap
between the surface and the tube center section.
Reject any bent tube.
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).
Insert the tube, open end up, into the heater tube
housing. On each end, install the ferrules, O-ring and
nut, and lightly tighten. Observe the tube through the
fuel discharge hole as shown below. Tighten the nuts
firmly with fingers only. DO NOT USE A
Page 18
WRENCH. Install a new test filter with RED
COLORED SIDE OUT, and O-ring.
To setup for a 1∆P test, attach the heater section
outlet line to the heater tube housing outlet; or
To setup for a 2∆P test, attach the time delay reactor
to the heater tube housing outlet. Install a new test
filter with the RED COLORED SIDE OUT, and
O-ring in the top of the time delay reactor. Then
attach the reactor fuel outlet line to the reactor outlet.
See Appendix Figures A2.2.1 through A2.2.4.
JFTOT II Operation Manual Rev. C