Air-Actuated Hydraulic
Swaging Unit (AHSU)
Setup and Operating Instructions
AHSU with base
Definitions
Statements and symbols are used in this document
to identify safety concerns. Read the definitions
below before setting up and operating the AHSU.
Caution: Statements that identify conditions or
practices that could result in damage
to the equipment or other property.
CAUTION!
Indicates cautionary information.
Warning: Statements that identify conditions or
practices that could result in personal
injury or loss of life.
WARNING!
EYE PROTECTION
Eye protection must be worn while
operating or working near the AHSU.
READ AND UNDERSTAND THESE INSTRUCTIONS BEFORE USING THE AHSU.
MS-12-38
Revision 2 10-03-CP
Components (Unit with Die Heads and Base)
Hydraulic housing
Nut retainer
Safety glasses
Gap
inspection
gauge
Die heads
Adapter plates
Hex key
Base
Safety Precautions
Use safety glasses when setting up and
operating the AHSU.
Do not tamper with or alter any
components of the AHSU.
Return the AHSU to your independent
Swagelok sales and service representative
if any signs of hydraulic fluid leakage or
malfunction occur.
Indicator knob
Air pump
Air input
decal
Air input
Operating
instructions
3. Select the proper size die head (reference the
size marked on each die head).
Indicator knob
set lever
Required Air Inlet Working Pressure, psig (bar)
Size
400 40 (2.8) 35 (2.4)
600 60 (4.2) 35 (2.4)
810 70 (4.9) 45 (3.1)
6M0 40 (2.8) 35 (2.4)
8M0 50 (3.5) 35 (2.4)
10M0 60 (4.2) 40 (2.8)
12M0 70 (4.9) 45 (3.1)
Stainless Steel or
Steel Tubing
Fractional Series
Metric Series
Air inlet
valve
Brass or Soft
Copper Tubing
Setup
1. Connect the appropriate air source to the AHSU
air inlet valve.
2. Adjust the source pressure to the value shown in
the table or on the air input decal for the tubing
material and size.
Air inlet pressure should be limited to less
than 90 psig (6.2 bar). If the inlet pressure
exceeds 90 psig, there is a pressure relief
valve in the unit that will activate.
2
4. Remove the screw located in the bore of the
die head previously installed in the hydraulic
housing by turning counter clockwise with the
hex key.
5. Depress the nut retainer to remove the die head.
6. Depress the nut retainer and install the selected
die head. Tighten the shaft screw sufficiently to
keep the die tight, being careful not to break the
screw by overtightening it.
7. For 1/4 and 3/8 in. and 6, 8, and 10 mm sizes,
insert the appropriate adapter plate into the nut
retainer. Refer to the mark on the plate for size
information.
MS-12-38
Revision 2 10-03-CP