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Multihead Hydraulic Swaging Unit 

(MHSU)

Setup and Operating Instructions

Up to 1 in./25 mm MHSU with base

1 in./25 mm and over MHSU with base 

(also for use with 5/8 and 3/4 in.  

Alloy 2507 super duplex fittings 

and 3/4 in. medium-pressure tube fittings)

READ AND UNDERSTAND THESE INSTRUCTIONS BEFORE USING THE MHSU.

Definitions

Statements and symbols are used in this document 
to identify safety concerns. Read the definitions 
below before setting up and operating the MHSU.

 

CAUTION 
Statements that identify conditions or 
practices that could result in damage to the 
equipment or other property.

 WARNING 
Statements that identify conditions or 
practices that could result in personal injury 
or loss of life.

 

WARNING, EYE PROTECTION  
Safety glasses must be worn when setting 
up and operating the MHSU.

 

 

CAUTION 
Do not tamper with or alter any components 
of the MHSU.

Safety Precautions

 WARNING 
Do not use the MHSU and return the MHSU 
to your authorized Swagelok representative 
if any signs of excessive fluid leakage or a 
malfunction occurs.

WARNING 
Do not use the hand pump after the 
indicator knob releases. Failure to stop 
pumping after the indicator knob releases 
may affect fitting performance.

Summary of Contents for MHSU

Page 1: ...identify conditions or practices that could result in damage to the equipment or other property WARNING Statements that identify conditions or practices that could result in personal injury or loss of life WARNING EYE PROTECTION Safety glasses must be worn when setting up and operating the MHSU CAUTION Do not tamper with or alter any components of the MHSU Safety Precautions WARNING Do not use the...

Page 2: ...ie head into the hydraulic housing Retaining ring Locating pin Die heads Safety glasses Fig 1 Retaining Ring Removal Reinstallation 5 Install the selected die head into the hydraulic housing and align the notch on the die head with the locating pin on the hydraulic housing See Fig 2 6 Reinstall the retaining ring into the hydraulic housing using the retaining ring pliers See Fig 1 Note Visually ve...

Page 3: ...g 3 Nut and Ferrule Orientation 4 Insert the tubing into the die head until it rests firmly against the piston shoulder Tighten the nut until finger tight and all die threads are covered by the nut 5 Push the indicator knob forward until it snaps into place The knob shoulder should be flush with the hydraulic housing See Fig 4 Fig 4 Indicator Knob in Swaging Position Note If the indicator knob doe...

Page 4: ...inger tight See Fig 6 Fig 6 Installing Preswaged Assembly into Fitting Body Tube face Bottoming mark Note The line marked on the tubing in step 8 should now be visible If not visible tighten the nut with a wrench until the line is visible 14 3 4 in medium pressure tube fittings Mark the nut at the 6 o clock position Hold the fitting body stable and tighten the nut one third turn with a wrench See ...

Page 5: ... be damaged Return the unit to your authorized Swagelok representative The Swagelok nut does not cover all of the die head threads Bypass valve is closed Verify the bypass valve is open The die head piston is not returning fully after swaging Verify the die head piston is not binding in the body die If there is binding return the unit to your authorized Swagelok representative The pump is failing ...

Page 6: ...through 1 2 in fittings not approved for use with MHSU 5 8 and 3 4 in fittings use 1 in 25 mm and over MHSU with appropriate 5 8 and 3 4 in super duplex dies Warranty Information Swagelok products are backed by The Swagelok Limited Lifetime Warranty For a copy visit swagelok com or contact your authorized Swagelok representative Swagelok TM Swagelok Company 2002 2016 Swagelok Company Printed in U ...

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