Supports. Supports are used in tube layout to limit the sideward
movement of the tube due to pressure surges or vibrations.
maximum distance between supports is determined by the tube material
and its outside diameter (OD). Rules governing the specifications of
these supports are found in Chapter 4 of TM 1-1500-204-23-2.
If the damaged tube cannot be used as a pattern for the replacement
line, use wire to make a template. Do this by running a wire between
the fittings where the line must be installed and bending the wire to
conform with the tube layout standards previously described.
When making replacement tubing from stock material, the stock must be
measured and cut approximately 10 percent longer than the damaged
tube. This ensures sufficient length for forming the flares and for
small deviations in bending the tube to the pattern.
length must be cut off before forming the last flare.