TM 1-1520-240-BD
7-21. OPTION 3. Repair with MS Fitting (heat shrink
fittings not available).
a.
Materials/Tools Required:
Tubing or Hydraulic Hose Assembly
MS Fittings
Tube Cleaner
Tubing Cutter
Hacksaw
Hand File
b.
Procedural Steps:
(1)
Cut and remove damaged section of
tubing, Figure 7-9 or Figure 7-10. Tube ends must be
square.
(2)
Clean ends of undamaged tubing and slip
an MS socket, sleeve, and union over each end, as
shown in Figure 7-12, and torque.
(3)
For straight sections of damaged tubing
(removed in step 7-21.b.(1)), measure the distance
between the two fittings installed in step 7-21.b.(2),
Figure 7-13, and prepare a tube replacement section.
Put a socket and sleeve on each end of the replacement
section and connect to the two fittings, Figure 7-14.
(4)
I the damaged section of tubing (removed
in step 7-21.b.(1)) has complex bends, connect the end
fitting, Figure 7-13, using a hydraulic hose assembly,
Figure 7-15.
(5)
Torque and pressure check
(6)
Record BDAR action taken. When
mission is complete or as soon as feasible, repair using
standard maintenance procedures.
Figure 7-12. MS Fittings on Tubing Assembly
7-12
