TM 1-1520-240-BD
b.
Replace. Replace damaged tubing with high
pressure
hose
assemblies.
This
also
can
be
accomplished using AN flared assemblies with MS
flareless
installation
and
vise-versa,
providing
appropriate AN to MS unions are available. Use
hydraulic repair kit when applicable.
c.
Repair Using Union Fitting. Repair damaged
area using a union fitting. Bulkhead fittings can be used
where slightly larger repairs are necessary. AN or MS
unions may be used providing tubing is prepared
appropriately.
d.
Repair Using Union And Tube. Repair the
damaged area using union and tubing when the
damaged area exceeds the use of one union alone. AN
and MS plumbing may be used providing tubing is
prepared appropriately (Figure 7-2).
CAUTION
•
An
MS
flareless
sleeve
cannot
adequately bite into hard surfaced,
thin wall 21-6-9 (301) stainless steel
tubing.
This
combination
is
unreliable and undesirable.
•
After tubing has been cut, all efforts
should be made to flush any residue
from tube end. Rush with any
available fluid. If end connections
are
inaccessible,
momentary
activation of the system will suffice.
Figure 7-2. Tubing Repair (Union)
7-4
