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Knudson EL 2002 Manual

Elbow forming machine
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Manual Elbow Forming Machine
GENERAL OPERATING AND MAINTENANCE INSTRUCTIONS
Knudson Mfg., Inc.
th
10401 W. 120
Avenue
Broomfield, CO 80021
USA
(303) 469-2101 (tel)
(303) 469-7994 (fax)
7/11/2005
EL 2002
© Knudson Mfg., Inc. 2002
VERSION 2.0
Version: 2.0
Date: 08/02
1

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Summary of Contents for Knudson EL 2002

  • Page 1 EL 2002 Manual Elbow Forming Machine GENERAL OPERATING AND MAINTENANCE INSTRUCTIONS © Knudson Mfg., Inc. 2002 Knudson Mfg., Inc. 10401 W. 120 Avenue Broomfield, CO 80021 (303) 469-2101 (tel) Version: 2.0 (303) 469-7994 (fax) Date: 08/02 7/11/2005 VERSION 2.0...
  • Page 2 Change Record Page: Date Change Authorization 08/02 Initial Release 08/03 Added new logo, fixed minor typos, raised footer 7/11/2005 VERSION 2.0...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1. INTRODUCTION ....................4 2. SAFETY RULES ....................5 4. MACHINE SPECIFICATIONS ................8 5. TERMINOLOGY ....................10 6. REQUIRED TOOLS AND EQUIPMENT .............11 7. SUB-ASSEMBLY OVERVIEW ..............12 8. SETUP AND OPERATING PROCEDURES ..........14 9. GENERAL OPERATING PROCEDURES ...........16 10. PROFILE CHANGEOVER PROCEDURES ..........20 11.

  • Page 4: Introduction

    Knudson Mfg., Inc. Your new EL-2002’s high standards of performance and durability will serve you reliably for years to come. Each Knudson Mfg., Inc. product is backed by our dedication to high quality manufacturing, commitment to customer service, and innovation in equipment design.

  • Page 5: Safety Rules

    2. SAFETY RULES 2.1. General Safety Rules Read and understand entire Operator’s Manual prior to use of this machine. The operator should stay alert, and use common sense when operating this and any machine. The operator should not use machine while tired or under the influence of drugs or alcohol. Proper dress is recommended.
  • Page 6 -crimp stop – the two crimp stops are attached to the advance plate and prevent the crimp handle from being pulled when the advance assembly is in its furthest forward position. Moving the advance assembly backwards will not allow the crimp stops to function properly and open up the potential for serious injury. *This machine should not be operated without the covers in place.
  • Page 7 3. PROFILE SPECIFICATIONS 3.1. PROFILES 2 X 3 (51-mm x 76-mm)– A Elbow – crimped up to 90 degrees. 2 X 3 (51-mm x 76-mm)– B Elbow – crimped up to 90 degrees. 3 X 4 (76-mm x 102-mm)– A Elbow – crimped up to 90 degrees. 3 X 4 (76-mm x 102-mm)–...

  • Page 8: Machine Specifications

    4. MACHINE SPECIFICATIONS 4.1. STANDARD BASE UNIT SPECIFICATIONS Length = 20.75-in (525-mm) [mount to mount] Width = 22.75-in (575-mm) [handle to handle] Height = 26.75-in (680-mm) [base to vertical handle] Weight = 74.5-lbs (34-kg) [chassis only] Weight = 90.0-lbs (41-kg) [with four (4) tooling sets] 4.2.
  • Page 9 4.4. INTENDED USE The EL-2002 Manual Elbow Forming Machine is intended to form the aforementioned specific profiles from the designated material specifications. The machine is in no way intended for any other purpose. Any attempt to use the machine for a different purpose may result in serious personal injury or significant damage to the machine.

  • Page 10: Terminology

    5. TERMINOLOGY 5.1. MACHINE NOMENCLATURE Front End - the end of the machine where the crimping mechanism is located. Back End - the end of the machine opposite the crimping mechanism. Left Side - when viewing the crimping mechanism, the side located to the left Right Side - when viewing the crimping mechanism, the side located to the right 5.2.

  • Page 11: Required Tools And Equipment

    6. REQUIRED TOOLS AND EQUIPMENT 6.1. HAND TOOLS 6.1.1. Combination or Open End Wrenches 7/16-in 9/16-in 6.1.2. T-Handle Hex Wrench 1/8-in up to 5/16-in – 1/16-in increments 6.1.3. L-Handle Hex Wrench 1/8-in up to 5/16-in – 1/16-in increments Ball-Nose type wrenches recommended 6.1.4.

  • Page 12: Sub-Assembly Overview

    7. SUB-ASSEMBLY OVERVIEW 7.1. CRIMPING ASSEMBLY The crimping assembly is located at the front of the machine. It extends from the top of the spring returns protruding from the top cover down along the front and includes the three knives, knife adjustment screws, and crimp dies.
  • Page 13 7.2. ADVANCE ASSEMBLY The advance assembly is the movable assembly located inside of the enclosure formed by the safety covers. The assembly moves along the two slide shafts and is driven by rack and pinion gears. With the locking/release pin in the proper position, pulling on the advance handle moves the advance assembly forward, completing the final step in producing a fold in the blank while positioning the blank for another crimp.

  • Page 14: Setup And Operating Procedures

    8. SETUP AND OPERATING PROCEDURES 8.1. RECEIPT/UNPACKING Check the contents of your shipment against the shipping package list. Check for any missing or damaged components. Contact your sales agent if any problems exist. 8.2. INITIAL INSPECTION *** INSPECT THE MACHINE BEFORE OPERATING *** During transport, parts of any machine may vibrate loose and/or foreign objects may accidentally be directed into the machinery.
  • Page 15 end and handles of the machine aligned away from any physical interference, such as other equipment, partitions, or walls. WARNING: NEVER force the machine down to match the contour of the mounting surface. Wherever the machine frame does not meet the mounting surface, use leveling pads or suitable shims to achieve a solid mount.

  • Page 16: General Operating Procedures

    9.1. INITIAL SETUP 9.1.1. General *Knudson Mfg., Inc. strongly recommends sending sample blank material to the factory upon ordering of the EL-2002. This way the factory will be able to set up the machine to the specific needs of the buyer. * The machine has been completely set-up, tested, and adjusted at the factory upon ordering.
  • Page 17 2-in x 3-in Downspout Blanks Elbow Size Bend Degress Blank Length Blank Length "A" Elbows 8.5 in 216 mm 10 in 254 mm 11.5 in 292 mm 12.5 in 318 mm "B" Elbows 8.5 in 216 mm 10 in 254 mm 11.5 in 292 mm 12.5 in...
  • Page 18 9.2.3. Return sizing When fabricating offsets, the blank size is determined by the angle of elbow to be bent and the length of the overhang that the offset is to fit. The following is an example for a 2 x 3-in A size downspout to be angled at 75 degrees with an overhang of 18-in.
  • Page 19 *It is also recommended that the push tool stay in the front end of the blank until the first crimp is made. The initial crimp may cause the opening of the blank to become twisted and, as a result, the elbow will not be desirable.

  • Page 20: Profile Changeover Procedures

    10. PROFILE CHANGEOVER PROCEDURES 10.1. PROFILE CHANGEOVER GENERAL NOTES The following descriptions and figures show the machine in the 2x3 A configuration. The process and required tools are the same for all four configurations. A changeover can be performed using a set of L-shaped hex wrenches (see Section 4). Sliding the advance assembly to the back end of the machine can simplify the changeover process.
  • Page 21 INCORRECT CORRECT The beveled side of the Figure: 10-2: This side of the left knife left knife should face away should face operator from the operator when when mounted mounted. With the side knives mounted, mount the top knife, beveled side facing the operator as shown in Figure 10- 3.
  • Page 22 10.1.4. Adjustment Adjustment may be required once the new knives and mandrel assembly are installed. Refer to Section 11 for adjustment instructions. Only minor adjustments are to be expected. In general, the only adjustment needed is adjusting the crimp depth when changing from A to B configurations. If major adjustments are needed, recheck crossover instructions to make sure the procedure was carried out properly.

  • Page 23: Adjustments And Trouble Shooting

    11. ADJUSTMENTS AND TROUBLE SHOOTING *** ENSURE ALL SETUP AND OPERATING PROCEDURES IDENTIFIED IN SECTION 7 HAVE BEEN FOLLOWED AND VERIFIED PRIOR TO ADJUSTING THE MACHINE *** ***READ ALL OF THE SECTION 10 ADJUSTMENT PROCEDURES AND SECTION 11 BEFORE ADJUSTING THE MACHINE *** 11.1.
  • Page 24 (Front view) (Top View) Figure 11-2: Removing the four outermost screws (left) will allow for the removal of the rack gear and the rack spacer (right). Removal of the gear/spacer on the left and right of the front plate will allow for crimp handle adjustment.
  • Page 25 * Knudson Mfg, Inc. recommends the customer send in several samples of downspout to be formed into elbows. The factory will use the samples to adjust the machine and produce as many finished elbows as possible to ship with the machine.
  • Page 26 11.3.1.Tearing The crimping process is essentially a controlled folding process. The most typical problem with this process is tearing. Tearing typically results from the knives being set too deep, or from the side knives making asymmetrical contact with the blank (the side knives being set too far in on the top). Be sure the side knives are just barely contacting the bottom corners on the blank.
  • Page 27 11.4.1. Crash Recovery A crash indicates a serious problem with existing adjustments or some kind of mechanical difficulty. Once the machine is clear of material, refer to Sections 8 and 9 for Initial Setup and General Operating Procedures. Re-read Sections 9 and 11 completely. CONDUCT A THOROUGH INSPECTION OF THE MACHINE, THEN PERFORM ALL THE APPLICABLE PROCEDURES NOTED IN SECTIONS 9 AND 11.

  • Page 28: General Machine Maintenance

    12. GENERAL MACHINE MAINTENANCE 12.1. CLEANLINESS / GENERAL Keep both the machine and the surrounding work area clean and free of dust, dirt and debris. Routine cleaning of the entire machine will help extend the life of all mechanical components. In particular, a clean machine and work area will help prevent the introduction of foreign objects into the machine, which can significantly damage mechanical components.

  • Page 29: Transportation / Moving The Machine

    13. TRANSPORTATION / MOVING THE MACHINE 13.1. GENERAL During transport/moving, the machine will experience vibration and shock normally associated with vehicular or trailer transport. Vibration and shock may loosen fasteners. 13.2. TRANSPORTATION PROCEDURES Ensure that all equipment is secure. Do not leave any loose tools in or around the machine. Remove any straight or partially bent blanks from machine and discard them.

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