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E.H. Wachs EP 424 User Manual

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E.H. Wachs
600 Knightsbridge Parkway
Lincolnshire, IL 60069
www.ehwachs.com
EP 424 End Prep Machine
E.H. Wachs Part No. 81-MAN-00
Rev. C, January 2016
Revision History:
Original
June 2010
Rev. A
April 2013
Rev. B
May 2014
Copyright © 2016 E.H. Wachs. All rights reserved.
This manual may not be reproduced in whole or in part
without the written consent of E.H. Wachs.
User's Manual

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Summary of Contents for E.H. Wachs EP 424

  • Page 1 Rev. C, January 2016 Revision History: Original June 2010 Rev. A April 2013 Rev. B May 2014 Copyright © 2016 E.H. Wachs. All rights reserved. This manual may not be reproduced in whole or in part without the written consent of E.H. Wachs.

  • Page 2: Lincolnshire, Il

    Model SDB 103, SDB 206, and SDB 412 Small Diameter Bevelers; Model FF 206; FF 313, and FF 424 Flange Facers. Model SB, LB, and MB Plus Boiler Tube Bevelers. EP 424 End Prep/Flange Facer. Model Number: 18-000-XX (TSE, FSE); 19-000-XX (TFS); 16-000-XX (SDB- 103/FF-206);...

  • Page 3: Table Of Contents

    EP 424 Components ........
  • Page 4 Setting Up and Mounting the EP 424 ........
  • Page 5 Return Goods Address ............122 E.H. Wachs...
  • Page 6 EP 424 End Prep Machine Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 7: Chapter 1: About This Manual

    URPOSE OF ANUAL This manual explains how to operate and maintain the EP 424 end prep machine. It includes instructions for set-up, operation, and maintenance. It also contains parts lists, diagrams, and service information to help you order replacement parts and perform user-serviceable repairs.

  • Page 8: How To Use The Manual

    EP 424 End Prep Machine OW TO ANUAL This manual is organized to help you quickly fi nd the infor mation you need. Each chapter de- scribes a specifi c topic on using or maintaining your equipment. Use these instructions to operate and maintain the equipment.

  • Page 9: Manual Updates And Revision Tracking

    When a manual is revised, we will update the revision history on the title page. Current versions of E.H. Wachs Company manuals are also available in PDF for mat. You can request an electronic copy of this manual by emailing customer service at sales@wachsco.com.
  • Page 10 EP 424 End Prep Machine Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 11: Chapter 2: Safety

    E.H. Wachs takes great pride in designing and manufactur ing safe, high-quality products. We make user safety a top priority in the design of all our products. Read this chapter carefully before operating the EP 424 end prep machine. It contains important safety instructions and recommendations.

  • Page 12: Safety Symbols

    EP 424 End Prep Machine Safety Symbols This icon is displayed with any safety alert that indicates a personal injury hazard. WARNING This safety alert indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury.

  • Page 13: Safety Labels

    Chapter 2, Safety: Safety Labels AFETY ABELS The following safety labels are on the EP 424 machine. If a label is lost or unreadable, order and attach a replacement. See ordering instructions in Chapter 10. Figure 2-1. Crush hazard safety label (part no. 81-165-00).
  • Page 14 EP 424 End Prep Machine Figure 2-5. Compressed air pressure safety label (part no. 90-401-02). Figure 2-6. Hydraulic pressure safety label (part no. 90-402-01). Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 15: Chapter 3: Introduction To The Equipment

    EP 424 VERVIEW OF THE The EP 424 is an I.D. (inside diameter) mounted end prep machine for facing, beveling, counter- boring, and J-prep ping pipes and fl anges. It can be used for pipes from 4-24 inches O.D., with wall thicknesses up to 1.6”...

  • Page 16: Form-Tool Confi Guration

    EP 424 End Prep Machine Form-Tool Confi guration The form tool confi gurations have a rotating tool head with 3 tool holders, for performing up to 3 simultaneous opera tions. Tooling is available for facing, single-angle beveling, compound bevel- ing, and counterboring.

  • Page 17: Ep 424 Components

    Chapter 3, Introduction to the Equipment: Overview of the EP 424 Figure 3-2. The photo shows the single-point confi gu ration of the EP 424. EP 424 Components The following components are provided with the form tool confi guration of the EP 424: • main drive assembly with lifting attachments •...
  • Page 18 EP 424 End Prep Machine The single-point confi guration includes the following addi tional components: • single-point slide Feed gauge Tool holder Feed screws Starwheel Male tool slide Figure 3-3. The single-point slide feeds the tool radi ally across the pipe face. It is driven along a feed screw by a starwheel.
  • Page 19 Chapter 3, Introduction to the Equipment: Overview of the EP 424 • Speed Prep autofeed module Speed Prep module Figure 3-5. The speed prep module is installed on the main drive to operate the feed mecha- nism for single-point beveling.
  • Page 20 EP 424 End Prep Machine • extension leg kit for standard mandrel Figure 3-7. Two sets of extension legs allow the stan dard mandrel to be mounted in pipes up to 23.64” I.D. • dial indicator assembly Figure 3-8. The dial indicator is provided for center ing the independent chuck in the pipe.

  • Page 21: Drive Motors

    81-310-00. The hydraulic motor requires 10 gpm fl ow at 1500 psi (38 l/min @103 bar). Figure 3-10. The hydraulic motor is interchangeable with the air motor. Both motors include adapters for the EP 424. The motors are interchangeable, requiring no modifi - cations to the EP 424 machine. E.H. Wachs...

  • Page 22: Accessories

    EP 424 End Prep Machine Accessories The following accessories are available for the EP 424: • Single-point upgrade kit, part no. 81-400-00 (for form-tool machine confi guration); includes Speed Prep mod ule, single-point slide, trip ring, and independent chuck. •...

  • Page 23: Dimensions And Weights

    (940 x 922 x 566 mm) PERATING NVELOPE The drawings on the following pages illustrate the operating envelope for all confi gurations of the EP 424: • Standard machine with air drive (81-000-01) • Standard machine with hydraulic drive (81-000-02) •...

  • Page 24: Standard Confi Guration With Air Drive (81-000-01)

    EP 424 End Prep Machine Standard Confi guration with Air Drive (81-000-01) Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 25: Standard Confi G. With Hydraulic Drive (81-000-02)

    Chapter 3, Introduction to the Equipment: Operating Envelope Standard Confi g. with Hydraulic Drive (81-000-02) E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 26: Single-Point Confi Guration With Air Drive (81-000-03)

    EP 424 End Prep Machine Single-Point Confi guration with Air Drive (81-000-03) Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 27: Single-Point Confi G. With Hydraulic Drive (81-000-04)

    Chapter 3, Introduction to the Equipment: Operating Envelope Single-Point Confi g. with Hydraulic Drive (81-000-04) E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 28: Single-Point With Speed Prep, Air Drive (81-000-05)

    EP 424 End Prep Machine Single-Point with Speed Prep, Air Drive (81-000-05) Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 29: Single-Point With Speed Prep, Hyd. Drive (81-000-06)

    Chapter 3, Introduction to the Equipment: Operating Envelope Single-Point with Speed Prep, Hyd. Drive (81-000-06) E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 30: Standard Mandrel Dimensions/Leg Chart (81-303-00)

    EP 424 End Prep Machine Standard Mandrel Dimensions/Leg Chart (81-303-00) Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 31: Rotating Head Assembly (81-304-00)

    Chapter 3, Introduction to the Equipment: Operating Envelope Rotating Head Assembly (81-304-00) E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 32: Independent Chuck Dims/Leg Chart (81-305-00)

    EP 424 End Prep Machine Independent Chuck Dims/Leg Chart (81-305-00) Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 33: Single-Point Slide (81-306-00)

    Chapter 3, Introduction to the Equipment: Operating Envelope Single-Point Slide (81-306-00) E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 34 EP 424 End Prep Machine Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 35: Chapter 4: Assembly, Disassembly, And Storage

    Store the machine in its case at all times when it is not in use. Figure 4-1 shows the layout of the components in the case. There are lockdown pins for securing the EP 424 machine, as shown in Figure 4-2.

  • Page 36: Storage Checklist

    TORAGE HECKLIST Before storing the EP 424, perform the following mainte nance steps. If you are using the machine in an especially dirty or corrosive environment, perform these steps fre quently. • Clean the machine by wiping off dirt, debris, and accu mulated oil or grease.

  • Page 37: Chapter 5: Operating Instructions

    ANDREL ON THE Typically, you will install the mandrel (either the standard or independent chuck mandrel) in the pipe before mounting the EP 424 machine. This makes it easier to align the man drel and mount the machine. The standard mandrel is recommended when it can be used on the pipe. It is self-centering, and is quicker and easier to mount than the independent chuck mandrel.

  • Page 38: Mounting The Universal (Standard) Mandrel

    EP 424 End Prep Machine Mounting the Universal (Standard) Mandrel Measure the I.D. of the pipe. Figure 5-1. Measure the I.D. of the pipe to determine which leg set will be required. NOTE If the pipe I.D. is larger than 15.96” (405.4 mm), you will need the extended leg kit.
  • Page 39 If you are using more than one leg set, install the largest leg fi rst, then “stack” them in size order. Make sure the legs seat squarely, then securely tighten the screws. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 40 EP 424 End Prep Machine Figure 5-2. Screw the captivated screws into the man drel to secure the legs. NOTE Extension leg #1 does not have threaded holes to install other legs on top of it. Always install extension leg #1 or #2 last, on top of the others. These legs are steel for greater durability.
  • Page 41 NOTE A socket wrench and 1-1/16” socket are provided with the EP 424. Figure 5-4. Turn the drawbar nut counter-clockwise to retract the clamping legs. Insert the clamping legs into the I.D. of the pipe. Hold the mandrel so that the legs are far enough inside the end of the pipe to be out of the way of the machining operation.
  • Page 42 EP 424 End Prep Machine Figure 5-5. Insert the clamping legs into the pipe. Turn the drawbar nut clockwise to clamp the legs inside the pipe until they are snug enough to hold the mandrel. Figure 5-6. Turn the drawbar nut clockwise until the clamping legs are snug in the I.D. of the pipe.

  • Page 43: Mounting The Independent Chuck Mandrel

    Mounting the Independent Chuck Mandrel Start with the chuck body separated from the mandrel. Measure the I.D. of the pipe. Figure 5-8. Measure the I.D. of the pipe to determine which leg set will be required. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 44 EP 424 End Prep Machine Refer to the clamp leg chart in Table 2 to select the correct clamp legs. Find the I.D. you measured (inches or mm) in the appropriate column on the left, then select the leg set listed in the column on the right.
  • Page 45 Put a jam nut over each leg, with the “shoulder” side of it toward the chuck body. Thread it a few turns onto the chuck leg. Shoulder Figure 5-10. Put on the jam nut as shown, with the shoulder of the nut toward the chuck. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 46 EP 424 End Prep Machine If chuck leg spacers (23-221-00) are required, install a spacer over each of the 4 independent chuck buttons. Figure 5-11. If required, put a chuck leg spacer on each chuck button end. Insert a button into the end of each chuck leg. The but tons are fi tted with o-rings to hold them in the leg.
  • Page 47 Remove the nuts from the 4 threaded studs, and put the interlocking pieces of the alignment gauge over the studs with the scale sides facing you. Figure 5-14. Mount the alignment gauge to the studs in the chuck. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 48 EP 424 End Prep Machine Screw the nuts onto the studs to secure the alignment gauge. The gauge pieces should be tight against the face plate. You may have to move the chuck out to tighten the gauge against the face plate.
  • Page 49 When the chuck body is centered, use a 2-1/4” wrench to snug the jam nuts against the chuck body. Figure 5-18. When the chuck is rough centered, snug the jam nuts to hold the clamping legs in place. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 50 EP 424 End Prep Machine Remove the alignment gauge from the studs. Make sure you have the nut and both washers removed from each stud. Figure 5-19. Remove the alignment gauge and the nuts and washers from the chuck studs.
  • Page 51 Tighten the set screws in the indicator collar to hold it in place on the mandrel. Figure 5-22. Position the collar near the pipe surface and tighten the set screws to hold it in place. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 52 EP 424 End Prep Machine Assemble the indicator and set the magnetic mount onto the indicator mounting collar. Turn the magnet on to hold the indicator in place. Figure 5-23. Set the magnetic base of the indicator on the collar, and turn the switch on to engage the mag net.
  • Page 53 Figure 5-25. Sweep the indicator around the pipe sur face to check centering of the mandrel. You can center on either the O.D. or the I.D. of the pipe, as required for the operation. E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 54: Using The Drive Motors

    Mounting and Operating the Air Drive To install the air motor, put the motor fl ange over the 4 motor mounting screws on the EP 424 motor adapter. You may have to rotate the motor slightly to engage the spline in the shaft.
  • Page 55 Make sure the air supply is turned off at the source. Connect the air line to the connector on the air motor. Turn on the air supply at the source. To operate the EP 424, squeeze the trigger on the air motor. The machine (form tool head or single-point slide) will start to rotate. NOTE The air supply must provide 95 cfm at 90 psi (2700 l/min at 6.2 bar).
  • Page 56 EP 424 End Prep Machine Figure 5-29. Squeeze the air motor trigger to start the machine. Adjust the motor speed by turning the speed control ler. Figure 5-30. Turn the speed control collar to adjust the rotation speed of the machine.

  • Page 57: Mounting And Operating The Hydraulic Drive

    Mounting and Operating the Hydraulic Drive To install the hydraulic motor, put the motor fl ange over the 4 motor mounting screws on the EP 424 motor adapter. You may have to rotate the motor slightly to engage the spline in the shaft.
  • Page 58 EP 424 End Prep Machine Connect the hydraulic hoses to the ports on the motor as described in Figure 5-33. Pressure Tank (return) connector connector Figure 5-33. Connect the hydraulic hoses to the motor as shown. Turn on the hydraulic power supply. Set it to 10 gpm at 1500 psi (38 l/min at 103 bar).
  • Page 59 Turn off the HPU and switch the hoses. Adjust the drive motor speed by turning the speed dial on the hydraulic motor. NOTE The form tool head has arrows indicating the correct direction of rotation. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 60 EP 424 End Prep Machine Figure 5-35. Use the speed dial on the hydraulic man ifold to adjust the machine rotation speed. While holding the hydraulic drive lever on, operate the machine as described in the appropri- ate section below (form tool or single-point operation).

  • Page 61: Form Tool Operation

    Chapter 5, Operating Instructions: Form Tool Operation PERATION The EP 424 has three tool holders, which can each hold a different tool. This allows you to perform any combination of facing, beveling, and counterboring simultaneously. Make sure the EP 424 is set up as follows for form tool operation: •...

  • Page 62: Planning The Operation

    EP 424 End Prep Machine Planning the Operation Operating Envelope Make sure you have adequate clearance around the work piece. See the operating envelope draw- ings in Chapter 3 for reference. Selecting Tooling Use the following charts to select the appropriate tooling for the operation.
  • Page 63 Chapter 5, Operating Instructions: Form Tool Operation Figure 5-38. The chart describes the tooling used for counterboring. Figure 5-39. The chart describes the tooling used for deburring. E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 64: Adjusting The Tool Holder Positions

    EP 424 End Prep Machine Figure 5-40. The chart describes the tooling used for J-prep operations. Adjusting the Tool Holder Positions You may need to change the positions of the tool holders in the rotating head, depending on the pipe diameter. Each tool holder can be set to an “inner” (small diameter) or “outer” (large diame- ter) position.

  • Page 65: Setting Up And Mounting The Ep 424

    Setting Up and Mounting the EP 424 You will probably fi nd it easiest to assemble the main com ponents of the EP 424 as you install the machine. The fol lowing is the recommended sequence for installation: •...
  • Page 66 EP 424 End Prep Machine NOTE It is recommended that you use a lifting device to pick up the EP 424. If you are lift ing it manually, have two operators lift it. Figure 5-42. Attach the lifting device to the lift hook.
  • Page 67 When the machine is fully engaged on the spline, lower the lifting device slightly to take the tension off it. Turn the feed handle clockwise to engage the mandrel threads in the feed nut. NOTE Push the machine forward while turning the feed handle to start the threads. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 68 EP 424 End Prep Machine Feed Nut Mandrel threads Figure 5-45. Turn the feed handle clockwise to engage the mandrel threads in the feed nut. Turn the feed handle clockwise until the drawbar nut emerges from the back of the machine.
  • Page 69 Install and connect the drive motor as described earlier in this chapter. Turn on the power source (air or hydraulic). Turn on the drive motor. The machine will start to rotate. Adjust the motor speed using the speed control ler on the drive. E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 70: Removing The Machine From The Workpiece

    EP 424 End Prep Machine WARNING Keep hands clear of the rotat ing head while the machine is operating. Contact with the head or tooling could result in serious injury. NOTE The use of coolant or cutting lubricant is recommended. This will improve the cutting performance and increase the life of the tooling.

  • Page 71: Single Point Operation

    PERATION Installing the Single-Point Kit If your EP 424 machine is equipped with the single-point option kit, it will include the single-point slide, trip ring, and independent chuck as additional components. Set up the machine as described below for single-point operation.
  • Page 72 EP 424 End Prep Machine Figure 5-50. Turn the feed handle counter-clockwise to thread the mandrel out of the feed nut. Pull the mandrel out through the front of the machine. Figure 5-51. Pull the mandrel out of the machine.
  • Page 73 Install the trip assembly onto the front of the machine, with the trip knobs toward the feed handle side. Fit the ring of the trip assembly around the the rim of the main housing, with the set screws aligned with the fl ats in the housing. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 74 EP 424 End Prep Machine Figure 5-54. Mount the trip assembly on the housing. Using a 1/8” hex wrench, tighten the 4 set screws in the trip assembly. NOTE The trip assembly screws are on the back of the ring.
  • Page 75 Make sure the felt wiper is in place on the back of the sin gle- point slide. Figure 5-56. There are three dowel pins in the back of the single-point slide to mount it to the main shaft. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 76 EP 424 End Prep Machine Using a 5/16” hex wrench, tighten the 6 captivated screws in the single-point slide to secure it to the main shaft. Figure 5-57. Tighten the captivated screws in the 6 holes to attach the single-point slide to the main shaft.

  • Page 77: Planning The Operation

    (part no. 56-424-01), for pipe O.D. range 7.25”-24” (184-610 mm). For most applications, you can use either tool holder. Make sure you select one with a range that includes the O.D. of the pipe you are machining. E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 78: Beveling O.d. Set-Back

    EP 424 End Prep Machine Beveling O.D. Set-Back The O.D. set-back is the distance from the end of the pipe where you will start the beveling opera- tion. It is determined by the angle(s) of the bevel, the pipe wall thickness, the land thickness, the land root radius, and the land extension.
  • Page 79 S = R + E + [tan(A2) x (W - T)] + [tan(A1) x (T - L - R)] W = Wall Thickness (After Counterbore) Figure 5-61. The diagram illustrates how to compute the O.D. set-back when performing a compound bevel. E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 80: Setting Up And Mounting The Ep 424

    = 0.737” Setting Up and Mounting the EP 424 You will probably fi nd it easiest to assemble the main com ponents of the EP 424 as you install the machine. The fol lowing is the recommended sequence for installation: •...
  • Page 81 Figure 5-62. Attach the lifting device to the lift ring. Use the lifting device to pick up the EP 424 and posi tion it for mounting on the mandrel. If you do not have a lifting device, two people can lift the machine into place using the handles.
  • Page 82 EP 424 End Prep Machine Figure 5-64. Push the machine forward on the man drel until you can engage the mandrel threads in the feed nut. Part No. 81-MAN-00, Rev. C E.H. Wachs...
  • Page 83 Using a 3/16” hex wrench, loosen the tooling set screws in the male slide and put the tool holder with the tool in the slide. Tighten the set screws. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 84 EP 424 End Prep Machine Figure 5-66. Install the tool holder in the slide. Using a 5/16” hex wrench, turn the starwheel on the slide to position the tool just beyond the O.D. of the pipe. Figure 5-67. Turn the starwheel until the tool bit is positioned at the required start point.

  • Page 85: Using The Speed Prep Autofeed

    Set the Speed Prep knob to the location for the starting angle (the angle at the O.D. of the pipe). Lock the knob in place. Move the left knob stop up against the knob and tighten it. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 86 EP 424 End Prep Machine Figure 5-68. Set the left knob stop against the Speed Prep knob. Loosen the Speed Prep knob and set it to the location of the transition angle. Lock the knob in place. Move the right knob stop up against the knob and tighten it.

  • Page 87: Removing The Machine From The Workpiece

    Removing the Single-Point Kit Set the machine on a stable work surface that can sup port its weight. Use a lifting device to lift the EP 424. If the mandrel is installed, remove it by turning the feed handle counter-clockwise until the mandrel is threaded out of the feed nut.
  • Page 88 EP 424 End Prep Machine Figure 5-70. Turn the feed handle counter-clockwise until the mandrel is threaded out of the feed nut. Pull the mandrel out through the front of the machine. Figure 5-71. Pull the mandrel out of the machine.
  • Page 89 Figure 5-72. Loosen the 6 screws holding the single-point slide. Remove the single-point slide from the main shaft. Figure 5-73. Remove the single-point slide. Using a 1/8” hex wrench, loosen the 4 set screws in the trip assembly. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 90 EP 424 End Prep Machine Figure 5-74. Loosen the set screws holding the trip assembly to the housing. Remove the trip assembly from the main housing. Figure 5-75. Remove the trip assembly. Replace the rotating tool head on the main shaft. Align the 3 dowel pins in the head with the holes in the shaft, and press the head into place.
  • Page 91 Using a 5/16” hex wrench, tighten the 6 captivated screws in the rotating head to secure it to the main shaft. Figure 5-77. Tighten the 6 screws holding on the rotating head. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 92 EP 424 End Prep Machine Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 93: Chapter 6: Routine Maintenance

    Figure 6-1. The grease fi tting is at the bottom of the main drive assembly housing. Every 30 days (more often with heavy use), apply grease through the fi tting. Using a 3/16” hex wrench, remove the plug in the top of the main drive housing. E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 94: Felt Wipers

    EP 424 End Prep Machine Figure 6-2. Remove the grease plug before putting grease into the main drive assembly. Re-install the plug in the top of the house. Screw the plug in until it is fl ush; do not screw it in all the way.

  • Page 95: Single-Point Slide

    Figure 6-4. Apply oil to the felt wiper in the rotating head. Figure 6-5. Replace felt wipers when they become worn or dirty. Single-Point Slide Each time you use the single-point slide, oil the feed screw. Apply a light coating of oil. E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 96: Mandrel

    EP 424 End Prep Machine Feed Screw Figure 6-6. Lubricate the feed screw with a light coat ing of oil. Mandrel Oil the spline on the mandrel (standard or independent chuck) each time you use it. Apply a light coating of oil.

  • Page 97: Drive Motor Lubrication

    Every month, grease the air motor through the grease fi tting on the motor. Use Ingersoll-Rand No. 28 grease or equivalent. Inject 1.5 cc of grease. Figure 6-8. Grease the air motor fi tting once a month. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 98 EP 424 End Prep Machine Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 99: Chapter 7: Service And Repair

    • Adding shims will loosen the tension on the slide. • Removing shims will tighten the tension on the slide. There should always be the same number of shims under both gibs. E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 100: Adjust The Push Plate Set Screws

    EP 424 End Prep Machine As the slide wears, you may have to remove a shim to reset the tension. Check the male slide to see if there is any verti cal wobble. If you can move the slide, you will need to remove a shim on each side.

  • Page 101: Calibrating The Speed Prep Scale

    See the detailed instructions in Chapter 5 for setting up and per forming a single-point bevel. Confi gure the EP 424 for single-point operation. Mount the machine on a pipe or sample workpiece suitable for single-point beveling.
  • Page 102 EP 424 End Prep Machine Find the measured axial feed in Table 1 below, and read across for the actual bevel angle. Make a note of the angle. Table 1: Speed Prep Calibration Actual Bevel Angle Measured Axial Feed* (rounded to 0.5°) .027”...

  • Page 103: Chapter 8: Parts Lists And Drawings

    Chapter 8, Parts Lists and Drawings Chapter 8 Parts Lists and Drawings Refer to the following drawings for parts identifi cation and ordering. Each drawing includes a parts list for the assem bly. E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 104: Standard Confi G., Air Drive (81-000-01)

    EP 424 End Prep Machine Standard Confi g., Air Drive (81-000-01) ITEM PART NUMBER QTY. DESCRIPTION Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 105: Standard Confi G., Hydraulic Drive (81-000-02)

    Chapter 8, Parts Lists and Drawings: Standard Confi g., Hydraulic Drive (81-000-02) E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 106: Single-Point With Independent Chuck, Air Drive (81-000-03)

    EP 424 End Prep Machine Single-Point with Independent Chuck, Air Drive (81-000-03) Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 107: Single-Point With Independent Chuck, Hydraulic Drive (81-000-04)

    Chapter 8, Parts Lists and Drawings: Single-Point with Independent Chuck, Hydraulic Drive (81-000-04) E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 108: Single-Point With Standard Mandrel, Air Drive (81-000-05)

    EP 424 End Prep Machine Single-Point with Standard Mandrel, Air Drive (81-000-05) Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 109: Single-Point With Standard Mandrel, Air Drive (81-000-06)

    Chapter 8, Parts Lists and Drawings: Single-Point with Standard Mandrel, Air Drive (81-000-06) E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 110: Standard Confi G. With Electric Drive Adapter (81-000-07)

    EP 424 End Prep Machine Standard Confi g. with Electric Drive Adapter (81-000-07) Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 111: Main Drive Assembly (81-300-00)

    Chapter 8, Parts Lists and Drawings: Main Drive Assembly (81-300-00) E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 112: Rear Feed Assembly (81-301-00)

    EP 424 End Prep Machine Rear Feed Assembly (81-301-00) Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 113: Speed Prep Auto Feed (81-302-00)

    Chapter 8, Parts Lists and Drawings: Speed Prep Auto Feed (81-302-00) EP 424 Auto Feed Assembly 81-302-00 Contact E.H. Wachs for repair part information. EPD Electric Drive Adapter Kit (81-500-00) ITEM PART NUMBER DESCRIPTION E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 114: Standard Mandrel Assembly (81-303-00)

    EP 424 End Prep Machine Standard Mandrel Assembly (81-303-00) Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 115: Rotating Head Assembly (81-304-00)

    Chapter 8, Parts Lists and Drawings: Rotating Head Assembly (81-304-00) E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 116: Independent Chuck Assembly (81-305-00)

    EP 424 End Prep Machine Independent Chuck Assembly (81-305-00) Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 117: Single-Point Slide Assembly (81-306-00)

    Chapter 8, Parts Lists and Drawings: Single-Point Slide Assembly (81-306-00) E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 118: Trip Assembly (81-307-00)

    EP 424 End Prep Machine Trip Assembly (81-307-00) ITEM PART NUMBER QTY. DESCRIPTION Safety Stop Assembly (81-316-00) ITEM PART NUMBER QTY. DESCRIPTION Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 119: Hydraulic Drive Assembly (81-310-00)

    Chapter 8, Parts Lists and Drawings: Hydraulic Drive Assembly (81-310-00) NOTE : ITEM PART NUMBER DESCRIPTION E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 120: Optional Remote-Operated Hydraulic Drive Assembly (81-310-01)

    EP 424 End Prep Machine Optional Remote-Operated Hydraulic Drive Assembly (81-310-01) Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 121: Air Drive Assembly (81-311-00)

    Chapter 8, Parts Lists and Drawings: Air Drive Assembly (81-311-00) E.H. Wachs Part No. 81-MAN-00, Rev. C...

  • Page 122: Feed Lock (81-317-00)

    EP 424 End Prep Machine Feed Lock (81-317-00) ITEM PART NUMBER DESCRIPTION Single-Point Holder Kit (81-702-00) ITEM PART NUMBER DESCRIPTION Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 123: Chapter 9: Accessories And Spare Parts

    Chapter 9, Accessories and Spare Parts Chapter 9 Accessories and Spare Parts CCESSORIES The following accessories and options are available for the EP 424: Table 1: EP 424 Accessories and Options Part Number Description Single-point upgrade kit for form tool EP-424 81-400-00 confi...

  • Page 124: Tooling

    EP 424 End Prep Machine OOLING The following tooling is available for the EP-424. Table 2: EP 424 Facing Tooling Part Number Description 56-708-01 Low-range facing tool insert holder kit, including holder, insert screws, and wrench 56-708-02 High-range facing tool insert holder kit, including holder, insert screws, and wrench 56-711-01 Premium grade HSS 2 sided insert for facing and beveling.
  • Page 125 Custom HSS counterbore tool bit, ground to cus tomer specifi cation. (Specifi c part no. assigned on 56-SPT-07 order.) Table 5: EP 424 Tooling Accessories Part Number Description 56-190-00 Insert screw, used with all EP 424 insert holders. 56-191-00 Insert screw Torx wrench. E.H. Wachs Part No. 81-MAN-00, Rev. C...
  • Page 126 EP 424 End Prep Machine Part No. 81-MAN-00, Rev. C E.H. Wachs...

  • Page 127: Chapter 10: Ordering Information

    Chapter 10, Ordering Information Chapter 10 Ordering Information To place an order, request service, or get more detailed information on any E.H. Wachs products, call us at one of the following numbers: U.S. 800-323-8185 International: 847-537-8800 You can also visit our Web site at: www.ehwachs.com...

  • Page 128: Warranty Information

    EP 424 End Prep Machine Before we perform any repair, we will estimate the work and inform you of the cost and the time to complete it. ARRANTY NFORMATION Enclosed with the manual is a warranty card. Please fi ll out the registration card and return to E.H.
  • Page 130 600 Knightsbridge Parkway • Lincolnshire, IL 60069 847-537-8800 • www.ehwachs.com...

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