Figure 6-25.—Marking tube.
Before you cut a tube, use a marking pen and a
ruler to draw a line parallel to the tube run across the
section to be cut (fig. 6-25). Cut the tubing. If a tube
end is to be replaced, make sure the line is placed in
the same location on the new tube as on the tube
section that has been removed. Draw a line across the
fitting. Install the tube run and locate the fitting.
Fingertighten any end fittings. One end of the fitting
may be swaged on the bench if possible. Place the
swaging tool on the first end being swaged, and line
up the line on the tube end being swaged with the line
on fitting. Repeat the procedure with the other ends
to be swaged. Torque the fittings.
In addition to the four types of repairs described
in table 6-11, flared, flareless, and lipseal end fittings
may often be repaired by replacing defective end
fittings with Permaswage fittings.
Permaswage tube repair equipment consists of
two series, D10000 and D12200. Each series has
three separate tool kits and a hydraulic power supply.
Installation of fittings by use of either series depends
upon the size of fittings, pressure rating, and access to
damaged area.
The series D12200 and series D10000 tool kits
differ only in the range of tube sizes that each kit can
swage. Figure 6-26 illustrates a typical series
D10000 tool kit. Series D10000 swaging tools make
permanent tubing joints by swaging Permaswage
fittings onto compatible tubing. The fittings may be
unions, tees, crosses, separable fittings, reducer
fittings, and other special fittings.
Hydraulic pressure supplied by a portable
hydraulic power supply (fig. 6-27) causes die
segments contained within the swaging tool
(fig. 6-28) to swage. The basic swage tool assembly
contains the actuating piston and a locking latch,
which ensures upper die block retention during the
swage cycle. The swaging tool is designed to operate
over a range of tubing sizes and types of fittings by
changing die block assemblies and/or fitting locators.
The die block assemblies are supplied in sets,
consisting of upper and lower die blocks, dies, and
locators. The lower die block is retained on the basic
swage tool assembly to make sure of automatic
retraction and consistent repeatability. The upper die
block assembly is removable for easy loading.
Figure 6-26.—Permaswage Tool Kit D10031-812S.
6-26
