6
Air-Actuated Hydraulic Swaging Unit (AHSU)
Setup and Operating Instructions
Swagelok—TM Swagelok Company
© 2002 - 2021 Swagelok Company
Printed in U.S.A
MS-12-38 RevD, October 2021
Troubleshooting
Symptom
Causes
Remedy
Tubing is difficult to remove from
the AHSU after preswaging.
Tubing wall may be below
recommended minimum wall
thickness.
Gently rock the tubing back and forth to remove it.
Use tubing that is thicker than the minimum
recommended wall thickness.
•
CAUTION!
Do not rotate the tubing.
The indicator knob does not
release.
Improper inlet pressure being used for
tubing material and size.
Adjust inlet pressure to the correct value for the tubing
size and material.
Oil is leaking from unit.
Return the unit to your independent Swagelok sales
and service representative.
The front edge of the Swagelok
nut does not line up with the
groove on the outside of die
head.
Improper die head being used.
The ferrules are not oriented properly.
Use the proper die head.
Place the ferrules in proper orientation.
The unit fails to swage
sufficiently as indicated by the
gap inspection gauge after
assembly.
The working pressure is too low.
Verify the working air pressure is set to the appropriate
pressure recommended on the air input decal.
•
CAUTION!
Do not swage a tube more than once.
Warranty Information
Swagelok products are backed by The Swagelok Limited
Lifetime Warranty. For a copy, visit swagelok.com or contact
your authorized Swagelok representative.
The AHSU cannot be used for alloy 2507 tubing or for medium-pressure tubing.
Refer to Swagelok
Gaugeable Tube Fittings and Adapter
Fitting
Refer to Swagelok
Tube Fitters
, for
additional information.
Refer to Swagelok
Tubing Data
additional information.
