Swagelok Welding System User Manual: Series 40 Weld Head
Contents
1. December 2000 31 Series 40 Weld Head 32 2000 Swagelok Company all rights reserved December 20002. 3 0 in set 7 62 cm 4 0 in set 10 16 cm 7 58 Ibs 3 44 kg 6 24 Ibs 2 83 kg 4 38 Ibs 1 99 kg Parameter Length Width Thickness 23 25 in 59 1 cm 20 75 in 52 7 cm 9 0 in 22 86 cm Specification Max Rotor Speed 2 5 r min Maximum E distance 2000 Swagelok Company all rights reserved December 2000 1 4 in 35 56 mm to the center of the electrode 10 16 cm Figure 21 Specifications 1 4in 35 56 mm 2 8 in 7 1 cm Figure 22 E Distance 17 Series 40 Weld Head 18 2000 Swagelok Company all rights reserved December 2000 Series 40 Weld Head Parts Drawings This section includes exploded assembly drawings and associated parts lists These drawings are provided as a guide to identifying part names For specific part ordering information contact your Swagelok representative The parts identified in this section include SWS 40H Weld Head Assembly SWS 40H Gear Side Assembly SWS 40H Brush Side Assembly SWS 40H Fixture Side Plate Assembly Left SWS 40H Fixture Side Plate Assembly Right SWS 40H Motor Drive Assembly 2000 Swagelok Company all rights reserved December 2000 19 Series 40 Weld Head Figure 23 SWS 40H Weld Head 20 2000 Swagelok Company all rights reserved December 2000 Series 40 Weld Head Table 4 Reference No SWS 40H Weld Head Parts List Description Ava
3. SWS 40FSP1L CVR SWS 40HP CVRSCREWS Cover SWS 40FSP1L CVR Cover Spring Plunger SWS 40FSP1L Cover Screws SWS 40FSP1L CVR SWS 40HP CVRSCREWS Wave Washer SWS 40FSP1L CVR SWS 40HP CVRSCREWS Collet Screws SWS 40FSP1L SWS 40HP CISCREWS Latch Hook Spring SWS 40FSP1L SWS 40HP LASCREWS Latch Adjustment Screw SWS 40FSP1L SWS 40HP LASCREWS Latch Adjustment Screw Washer 2000 Swagelok Company all rights reserved December 2000 SWS 40FSP1L SWS 40HP LASCREWS 27 Series 40 Weld Head Figure 27 SWS 40H Fixture Side Plate Assembly Right 28 2000 Swagelok Company all rights reserved December 2000 Table Reference No Series 40 Weld Head Description SWS 40H Fixture Side Plate Assembly Right Parts List Available in Kit No Bottom Fixture Plate SWS 40FSP1R Top Fixture Plate SWS 40FSP1R Latch Hook Cam SWS 40FSP1R SWS 40HP LASCREWS Latch Arms SWS 40FSP1R Latch Hook SWS 40FSP1R Latch Lever SWS 40FSP1R Latch Hook Pin SWS 40FSP1R Latch Arm Pins SWS 40FSP1R Hinge Pin SWS 40FSP1R Latch Lever Pin SWS 40FSP1R ZS GS CO N ol a A ew N Latch Lever Shims SWS 40FSP1R N SWS 40CI XX Collets See Collet Ordering Information wo Collet Screws SWS 40FSP1R SWS 40HP CISCREWS A Latch Hook Spring SWS 40
4. Using Table 3 enter the following parameters for level 1 and level 2 Table3 Level I and Level 2 Parameters Parameter Level 1 Setting Level 2 Setting Impulse 2 0 2 0 Maintenance 2 0 2 0 Weld Time 60 15 Ramp 0 0 Pulse Rate 1 1 Pulse Width 50 50 Speed Hi Speed Lo 10 Press WELD 11 Select SAVE TO MEMORY then press ENTER 12 Enter the procedure name Timing Test then press ENTER 2000 Swagelok Company all rights reserved 11 December 2000 Series 40 Weld Head Weld Head Timing Test l 2 3 Select WELD TEST Press START After verifying the screen displays WELD HEAD IS CLEAR TO ROTATE press ENTER Verify the rotor completes two revolutions then check that no part of the rotor is exposed after it stops See Figure 13 If the rotor does not complete the revolutions and stop correctly contact your Swagelok representative Correct Incorrect Figure 13 Rotor Position WARNING THE ROTOR WILL ROTATE ONE REVOLUTION TO HOME POSITION 15 SECONDS AFTER COMPLETING THE TWO REVOLUTIONS 2000 Swagelok Company all rights reserved December 2000 Series 40 Weld Head Weld Head Cleaning and Inspection This section describes how to disassemble the weld head and rotor Weld Head To disassemble the weld head follow these steps l Blow any loose material from the weld head assembly with clean low pressure air Remove the four screws from the left sid
5. 425 mm 4 2000 Swagelok Company all rights reserved December 2000 Series 40 Weld Head Table 1 Electrode Selection for 0 060 in Arc Gap Electrode Note Auto generated programs are exact Component Electrode Diameter enoths You may substitute another length Electrode Part No OD Length L D z 2 615 in 0 094 in SWS C 094 2 615 P 1 5 in 66 40 mm 2 39 mm 2 365 in 0 094 in 60 07 mm 2 39 mm 2 115 in 0 094 in 53 72 mm 2 39 mm 1 865 in 0 094 in 47 37 mm 2 39 mm 1 615 in 0 094 in 41 02 mm 2 39 mm 1 365 in 0 094 in 34 67 mm 2 39 mm that is within 0 005 in SWS C 094 2 365 P 2 0 in SWS C 094 2 115 P 2 5 in SWS C 094 1 865 P 3 0 in SWS C 094 1 615 P 3 5 in SWS C 094 1 365 P 4 0 in Electrode Geometry This illustration shows the electrode shape Swagelok suggests Properly ground electrodes provide consistent repeatable welds Pre ground electrodes are available from your Swagelok representative See your parts list for ordering information QY The electrode part numbers are assigned as follows SWS X HHH P Figure 5 Tungsten Electrode Electrode Diameter Material Designator Electrode Tip Diameter Package C Ceriated Length Designator T Thoriated The ceriated electrode material type is a mixture of 98 tungsten and 2 cerium and is commonly referred to as 2 ceriated This electrode t
6. Side Assembly 24 2000 Swagelok Company all rights reserved December 2000 Table 6 Reference No Series 40 Weld Head Description SWS 40H Housing Brush Side Assembly Parts List Available in Kit No Housing Brush Side SWS 40HP BRSHHOUSE Brush SWS 40HP BRUSH Brush Clamp Plate SWS 40HP BRUSH Brush Springs SWS 40HP BRUSH Drive Gear Plunger SWS 40HP BRSHHOUSE Brush Clamp Plate Screws SWS 40HP BRUSH SWS 40HP BRSHSCREWS Brush Screws 2000 Swagelok Company all rights reserved December 2000 SWS 40HP BRUSH SWS 40HP BRSHSCREWS 25 Series 40 Weld Head Figure 26 SWS 40H Fixture Side Plate Assembly Left December 2000 2000 Swagelok Company all rights reserved 26 Table 7 Reference No Series 40 Weld Head Description SWS 40H Fixture Side Plate Assembly Left Parts List Available in Kit No Bottom Fixture Plate SWS 40FSP1L Top Fixture Plate SWS 40FSP1L Latch Hook Cam SWS 40FSP1L SWS 40HP LASCREWS Latch Arms SWS 40FSP1L Latch Hook SWS 40FSP1L Latch Lever SWS 40FSP1L Latch Arm Pins SWS 40FSP1L Latch Hook Pin SWS 40FSP1L Hinge Pin SWS 40FSP1L Latch Lever Pin SWS 40FSP1L ZI S o NJ olal A oo po Latch Lever Shims SWS 40FSP1L e N SWS 40CI XX Collets See Collet Ordering Information wo Cover Sleeves
7. and remove any oxidation from the area that contacts the brush clamp plate with a nylon abrasive pad Remove the residue left by the abrasive pad using isopropyl alcohol and a lint free pad Remove residue from the brush groove with isopropyl alcohol and a lint free pad Reinstall the brush making sure the springs are fully seated in the brush housing Screw the two short screws into the brush clamp plate Screw the three long screws into the brush housing Brush Screws Series 40 Weld Head Qty 3 p P Clamping 7 Plate Screws Qty 2 Figure 17 Removing the Brush Note The brush clamp plate is attached with two Torx Plus IP 8 screws Use a Torx Plus T8 wrench to remove A Caution Be careful not to strip the heads or screw threads Note The brush should demonstrate a spring action if installed properly 2000 Swagelok Company all rights reserved December 2000 Series 40 Weld Head Rotor 1 10 11 Inspect the gears for wear and replace if damaged by referring to the Gear Side Assembly drawing on page 22 Remove the rotor from the gear side of the housing assembly See Figure 18 Place the rotor on a clean dry surface Inspect the rotor bearing assemblies for wear and damage Contact your Swagelok representative if replacement is necessary If the rotor bearing assemblies are dirty clean them with isopropyl alcohol Inspect the rotor for dirt and other deposits Remove dirt
8. or other deposits with a nylon abrasive pad Remove residue from the rotor track with isopropyl alcohol and a lint free pad Remove the actuator tab Inspect it for excessive wear Replace if necessary Remove dirt or other deposits from the actuator tab with a nylon abrasive pad Remove residue left by the nylon abrasive pad from the actuator tab with isopropyl alcohol and a lint free pad Reinstall the actuator tab 12 Reinstall the rotor onto the rotor track making sure that it is centered Weld Head Reassembly l Reinstall the brush side assembly onto the gear side assembly Replace the left side of the motor cover making sure the cable cover is seated in the stress reliever Replace the left side fixture plate 2000 Swagelok Company all rights reserved December 2000 Note Make any necessary gear replacements before reinstalling the rotor Figure 18 Removing the Rotor Note lf the fixture side plate screws thread into the alignment studs and cause both to rotate without tightening insert an Allen wrench into the alignment stud to keep it in place while you finish tightening the fixture side plate screws 15 Series 40 Weld Head Home Sensor Adjustment Actuator Plate Screws Test the home sensor assembly for proper operation by pressing HOME on the power supply If the rotor rotates continuously you will need to adjust or replace the home sensor actuator 1 Remove the actuato
9. FSP1R SWS 40HP LASCREWS oi Latch Adjustment Screw SWS 40FSP1R SWS 40HP LASCREWS O Latch Adjustment Screw Washer 2000 Swagelok Company all rights reserved December 2000 SWS 40FSP1R SWS 40HP LASCREWS 29 Series 40 Weld Head Figure 28 SWS 40H Motor Drive Assembly 30 2000 Swagelok Company all rights reserved December 2000 Table 9 Reference No Series 40 Weld Head SWS 40H Motor Drive Assembly Parts List Description Motor Interface Mount Motor Drive Assembly Housing Drive Assembly Bearings Drive Shaft Pressure Spring Washer Drive Shaft Insulator Coupling Coupling Locking Sleeve Bearing Washer Pressure Spring zla n olal A cw ry Drive Pinion Gear En N Motor Shaft Adapter i wo Encoder Sleeve A Encoder Board Assembly oi Shim O Shim N Encoder Wheel co Motor Drive Coupler Pin O Pinion Coupler Pin N oO Drive Shaft Coupler Pin N Encoder Board Screws N N Motor Screws N w Motor Interface Screws N A Motor Interface Washers N oa Drive Shaft Clip 26 Coupling Sleeve Set Screw t For part ordering information contact your Swagelok representative Not available as a field replaceable spare part 2000 Swagelok Company all rights reserved
10. Snood SERIES 40 WELD HEAD Swagelok series 40 welding system components deliver consistent precise welds for outside diameters from 1 1 2 to 4 in 38 1 to 101 6 mm A dc motor in the weld head drives a rotor which revolves the tungsten electrode around the weld joint Optical circuitry in the weld head sends precise feedback to the power supply to control the speed of the rotor All moving parts in the weld head are mounted in low friction devices to provide smooth consistent operation A spring loaded floating brush maintains contact with approximately two thirds of the circumference of the rotor This configuration ensures consistent uniform electrical conductance to the rotor and electrode 2000 Swagelok Company all rights reserved December 2000 Figure 1 Series 40 Weld Head Unpacking the Weld Head Components The weld head assembly and tool package are packaged in a foam lined shipping container Perform the following steps when your Swagelok series 40 weld head arrives l Inspect the container for damage 2 Remove the components from the container 3 4 Verify that the weld head serial number matches the Check the items for any damage serial number on the shipping container Record the model and serial numbers and the delivery dates on page 7 of the Regulatory Module Series 40 Weld Head 2000 Swagelok Company all rights reserved December 2000 Series 40 Weld Head Instal
11. e plate See Figure 14 Using a flat bladed screwdriver evenly pry the left fixture side plate off of the weld housing being careful not to damage ends of threaded alignment studs Remove the long motor cover screws and the motor cover end screws See Figure 15 Remove the four weld head housing screws from the housing Using a flat blade screwdriver carefully separate the brush side from the gear side See Figure 16 Carefully separate the weld head housing halves so that internal components such as the ground pin insulators and fixture pin insulator are not damaged See Figure 16 2000 Swagelok Company all rights reserved December 2000 Screws Qty 4 Figure 14 Removing the Left Side Plate Note As you remove the screws from the weld head organize them so that you can reinstall them in their original holes upon reassembly Motor Cover T Motor Cover Screws Long End Screws Qty 2 Qty 2 Figure 15 Removing the Motor Cover Weld Head Housing Screws Qty 4 Figure 16 Disassembling the Weld Head Housing 13 Brush Remove the three brush screws and the two clamping plate screws Remove the brush from the brush side of the housing assembly See Figure 17 Inspect and clean the brush using the following steps Check the brush for excessive wear Replace if necessary Remove any oxidation from the brush surface and brush clamp plate with a nylon abrasive pad Turn the brush over
12. ece aligning it with the tungsten electrode Close and latch the fixture side plate Open the other fixture side plate Insert the second work piece and butt the weld ends together Close and latch the fixture side plate Inspect the alignment by looking through the window cover to verify that the two work pieces are centered on the tungsten electrode Series 40 Weld Head Screws Qty 4 a Figure 8 Installing the Collet Figure 9 Aligning the Work Piece with the Electrode 2000 Swagelok Company all rights reserved December 2000 Series 40 Weld Head Latch Tension Adjustment Latch 1 Adjust the latch adjustment screws so that the latch is in position to exert appropriate tension on the tube Weld Head Mounting 1 Bolt the mounting bracket to the top of the bench 2 Thread the power cord through the opening of the mounting bracket and seat the weld head in the position shown in Figure 11 Figure 11 Mounting the Weld Head Note The weld head may be mounted as illustrated or turned 90 2000 Swagelok Company all rights reserved 9 December 2000 Series 40 Weld Head Performing Daily Maintenance To keep your Swagelok welding system SWS equipment in proper working order you must perform daily maintenance on the system components Note If you experience problems while performing the procedures in this section refer to Troubleshooting or contact your Swage
13. he chance of a poor quality weld by following these guidelines e Tube ends must be square e Tube ends must not have a wall thickness variation exceeding 15 of nominal e Tube ends must be burr free e Tube ends must be free of any rust grease oil paint or other surface contaminates Method Result Burrs in Burrs Flow Path Hack Saw Cut a zela Gap End Rolled by Cutter Irregular Tube Blade and Roller Diameter Tube Cutter Burrs Reduced Flow Area Face Perpendicular Smooth Transition to Axis at Wall Faces Tube Facing Tool Square Corners No Gaps Figure 7 Tube Preparation 2000 Swagelok Company all rights reserved 7 December 2000 Operating the Weld Head Operate the weld head using the following parameters Series 40 Shield gas flow rate std ft hr 30 to 500 Prepurge and Postpurge 450 minimum time in seconds Start Power Normal Maximum Recommended 100A Average Amps Set flow to higher rates when welding at high current rates Flow should be continuous for cooling when welding at high current rates Collet Installation 1 Select the appropriate set of collets according to the tube OD of the tubing to be welded Remove the four screws holding the collets on each side of the weld head Install the selected collet Reinstall the screws Work Piece Alignment l 2 Open the window cover Open one of the fixture side plates Insert the first work pi
14. ilable in Kit No Housing Gear Side Assembly SWS 40HP GEARHOUSE Housing Brush Side Assembly SWS 40HP BRSHHOUSE Motor Drive Assembly Fixture Side Plate Assembly Right SWS 40 FSP1R Fixture Side Plate Assembly Left SWS 40FSP1L Motor Cover Left with Swagelok Label SWS 40HP MCL Motor Cover Right with Serial Number Label SWS 40HP MCR Cord Strain Relief Left SWS 40HP SR Cord Strain Relief Middle SWS 40HP SR Cord Strain Relief Right SWS 40HP SR Ground Pin Insulator SWS 40HP FIXPINS Fixture Pin Insulator SWS 40HP FIXPINS Fixture Pin SWS 40HP FIXPINS Ground Pin SWS 40HP FIXPINS Ground Pin Set Screw SWS 40HP FIXPINS Fixture Side Plate Mounting Screws SWS 40HP FIXPINS Housing Screws SWS 40HP BRSHHOUSE SWS 40HP BRSHSCREWS Motor Drive Assembly Mounting Screw Lock Washers Motor Drive Assembly Mounting Screws Cord Strain Relief Screws SWS 40HP SR Motor Cover Right Screws Short SWS 40HP MCR SWS 40HP MCSCREWS Motor Cover Left Screws Long SWS 40HP MCL SWS 40HP MCSCREWS Motor Cover Left End Screws Not available as a field replaceable spare part 2000 Swagelok Company all rights reserved December 2000 SWS 40HP MCL SWS 40HP MCSCREWS 21 Series 40 Weld Head 10 Figure 24 SWS 40H Gear Side Assembly 22 2000 Swagelok Co
15. ling the Weld Head The weld head assembly has four connectors that plug into the power supply See Figure 2 The four connectors on the cable are e fixture e electrode red e work green e weld head shielding gas Connect the four connectors to the rear panel of the power supply by performing the following steps see Figure 3 1 Locate the weld head assembly 2 Align the notch on the multi pin connector with the small tab in the mating socket on the rear panel labeled FIXTURE Insert the connector in the socket Turn the connector sleeve clockwise by hand until it is tight This connection provides the control signals to drive the weld head 3 Insert and fully seat the red connector into the socket on the rear panel labeled ELECTRODE Twist the connector 1 4 turn clockwise to lock it into place This connection is the negative terminal of the weld head 4 Insert the green connector into the socket on the rear panel labeled WORK Twist the connector 1 4 turn clockwise to lock it into place This connection is the positive terminal of the weld head 5 Insert the weld head shielding gas connector into the Swagelok Quick Connect stem labeled TO WELD HEAD Ensure that the connector is firmly attached This connection provides shielding gas to the weld head through a solenoid valve in the power supply 2000 Swagelok Company all rights reserved December 2000 Electrode Fixture as ae dS ao Wo
16. lok representative Store the weld head in a clean dry place At the start of each workday remove dirt carbon and vapor deposits from the weld head rotor area with a clean soft cloth and a solvent such as isopropyl alcohol Figure 12 Inspect Exposed Surfaces of the Weld Head WARNING DISCONNECT THE WELD HEAD FROM THE POWER SUPPLY BEFORE PERFORMING MAINTENANCE 10 2000 Swagelok Company all rights reserved December 2000 Series 40 Weld Head Performing Periodic Maintenance This section describes the procedures necessary for Caution maintaining the weld head after every 400 to Do not use lubricants inside 500 welds the weld head Parts that are found to be defective during this procedure should be replaced For detailed part drawings and ordering information refer to the Part Drawings beginning at the end of this manual Spare parts are available through your Swagelok representative Weld Head Timing Check Program Select PROG CREATE Select MANUAL ENTRY then press ENTER Select LEVELS ONLY then press ENTER Enter 2 levels then press ENTER An Enter a programmer name Typically it would be your name Enter the Side 1 Tube Diameter 40 then press ENTER Select 40H from the Weld Head pick list 8 Using Table 2 enter the following parameters NO Table 2 Parameters Parameter Entry Start Power Normal Start Current Rotor Delay Prepurge Postpurge Downslope 9
17. mpany all rights reserved December 2000 Series 40 Weld Head Table 5 SWS 40H Gear Side Assembly Parts List Reference No Description Available in Kit No Housing Gear Side SWS 40HP GEARHOUSE Actuator Cover Actuator Mounting Plate Actuator Switch Adjustment Cam Rotor SWS 40HP ROTOR Actuator Tab SWS 40HP ACTUATOR Gas Bayonet SWS 40HP GEARHOUSE Drive Gear Assembly SWS 40HP DRGEAR Primary Gear Assembly SWS 40HP PRGEAR Secondary Gear Assembly SWS 40HP SEGEAR zl S CO N ol a A ew n Rotor Bearing Assembly SWS 40HP GEARHOUSE N Home Sensor Assembly wo Home Sensor Actuator SWS 40HP ACTUATOR A Actuator Spring SWS 40HP ACTUATOR Actuator Tab Screw SWS 40HP ACTUATOR SWS 40HP GEARSCREWS Thread Insert Actuator Plate Screws SWS 40HP GEARSCREWS Actuator Cover Screws SWS 40HP GEARSCREWS Home Sensor Screws SWS 40HP GEARSCREWS 2 Ceriated Electrode SWS C 094 2 615 P SWS C 094 2 365 P SWS C 094 2 115 P SWS C 094 1 865 P SWS C 094 1 615 P SWS C 094 1 365 P Electrode Set Screw Not available as a field replaceable spare part 2000 Swagelok Company all rights reserved December 2000 SWS 40HP ESS SWS 40HP ROTOR 23 Series 40 Weld Head Figure 25 SWS 40H Housing Brush
18. r cover See Figure 19 2 Slightly loosen the actuator plate screws Slowly rotate the home actuator switch adjustment cam clockwise until the rotor finds the home position 4 Rotate the home actuator switch adjustment cam an additional 5 Tighten the actuator plate screws 6 Press HOME on the power supply to verify Figure 19 Adjusting the Home Sensor the adjustment f Caution 7 Reinstall the actuator cover Over adjustment of the cam will cause the home sensor to fail prematurely due to excessive pressure Adjust the cam just past the point where the home sensor clicks when actuated Actuator Replacement If adjusting the home sensor assembly does not activate the home sensor assembly you will need to replace the actuator 1 Remove the right fixture side plate See Figure 20 2 Remove and replace the home sensor actuator 3 Repeat steps 1 to 7 of Home Sensor Adjustment 4 Reinstall the right fixture side plate Figure 20 Replacing the Actuator 16 2000 Swagelok Company all rights reserved December 2000 Series 40 Weld Head Specifications Component Dimensions Weight Weld Head Length Width Thickness 19 2 in 48 8 cm 8 0 in 20 3 cm 2 8 in 7 1 cm 12 8 lbs 5 8 kg Power Cord 15 ft 457 2 cm 25 ft 762 cm 50 ft 1524 cm 4 5 Ibs 2 04 kg 7 28 Ibs 3 3 kg 14 5 Ibs 6 58 kg Collets Tube OD 2 0 in set 5 08 cm
19. rk A EZ Gre Weld Head p LE Shielding D Gas A A Co Figure 3 Weld Head Connectors Caution Ensure that the fixture connector is fully seated in the mating socket and the threaded sleeve is tight Note The weld head shielding gas connector must be a single end shut off SESO Swagelok Quick Connect stem SS QC4 S 400 Series 40 Weld Head Selecting the Electrode Electrode length depends on the desired arc gap and outside diameter of the work piece being welded To select the correct electrode use the Calculating Tungsten Electrode Length formula Once you have the correct length calculated either select an electrode from stock using the Electrode Selection Table or place a special order Tungsten Electrode Length Calculation To determine the tungsten electrode length for a specific arc gap use the formula below Rotor OD 2 Tube OD 2 Arc Gap Electrode Length J Rotor OD a ay Arc Gap Electrode _ Length CT Figure 4 Electrode Length Calculation Parameters Rotor OD 6 850 in 173 99 mm Example No 1 1 5 in to 1 5 in tube butt weld Rotor OD A 6 850 in Tube outside diameter B 1 500 in Desired arc gap C 0 060 in 6 850 2 1 500 2 0 060 in 2 615 in Example No 2 38 1 mm to 38 1 mm tube butt weld Rotor OD A 173 99 mm Tube outside diameter B 38 10 mm Desired arc gap C 1 52 mm 173 99 2 38 10 2 1 52 mm 66
20. ype has demonstrated improved arc starting performance over the 2 thoriated type particularly when using purified shielding gas 2000 Swagelok Company all rights reserved 5 December 2000 Series 40 Weld Head Installing the Electrode l With the weld head in the open position press JOG on the operator panel until the tungsten electrode is in the position shown in Figure 6 Electrode Set Screw Loosen the electrode set screw Remove the electrode if Q s you are replacing it i Insert the new electrode until it is flush with the outside edge of the rotor Tighten the electrode set screw to secure the electrode Press HOME on the operator front panel to return rotor to the home position Electrode SS f S Outside Edge Of Rotor Figure 6 Electrode Installation A Caution Do not jog or move the rotor unless the electrode is clamped in place 2000 Swagelok Company all rights reserved December 2000 Series 40 Weld Head Preparing the Work It is important to prepare the tube pieces properly before welding Refer to Figure 7 Tubing must be square and burr free to ensure repeatable high quality autogenous fusion welds Cut the tubing to length with a hacksaw or tube cutter Face the tube ends with a lathe or a portable facing tool Deburr the ends making sure that both the inside and outside diameters are square and burr free Clean the tube ends using an appropriate solvent Minimize t
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