P/N 9621067 Rev 0 INSTALLATION MANUAL TYPE 2 CATWALK SYSTEM “We Engineer Relationships” CHIEF INDUSTRIES, INC. – AGRI/INDUSTRIAL DIVISION Installation Manual Chief Industries, Inc. 4400 East 39th Street • PO Box 848 Kearney, NE 68847 Phone 800.359.7600 TYPE 2 CATWALK SYSTEM P/N 9621067 Rev 0 Table of Contents Introduction ......................................................................... 1 Standard Limited Warranty ............................................. 2 General Safety Statement............................................... 5 Work Area Safety Statement ................................................ 5 Auxiliary Equipment Safety ................................................... 6 Packaging and Color Coding Information ................... 7 Diagram of Catwalk Components ................................. 8 Individual Catwalk Components .......................................... 9 Terminating End Brace ..................................................................... 9 Cross Brace .......................................................................................... 9 Wind Diagonal ...................................................................................... 9 Side Truss Section ............................................................................. 9 End Enclosure ...................................................................................... 9 Walkway .............................................................................................. 10 Mounting Areas / Weight ................................................ 10 Before You Begin ............................................................. 11 Unloading: ................................................................................. 11 Storage of Materials: ............................................................. 11 Claims for Shortages or Damaged Parts: ........................ 11 Manpower Requirement Estimate: .................................... 12 Tool and Equipment Requirement Estimate: ................. 12 Tips and Shortcuts: ................................................................ 12 Bolt Torque ........................................................................ 13 Catwalk Sections ............................................................. 13 Connect Catwalk Sections ........................................... 19 Catwalk Section Weights ..................................................... 20 Conveyor Mounting.......................................................... 20 Install Catwalk Tower Support System .................... 20 Install Catwalk Bin Peak Support System ............... 22 Enlarged Drop through Opening .................................. 24 Summary ............................................................................. 25 TYPE 2 CATWALK SYSTEM P/N 9621067 Rev 0 T Y P E 2 C A T W A L K S Y S T E M Introduction Thank you for purchasing a Type 2 Catwalk System. The attached guidelines have been derived from contractors with years of experience with installations of Type 2 Catwalk Systems. These guidelines present an easy, safe and effective method of installation, although alternate installation methods may be used. This proprietary information is loaned with the expressed agreement that the drawings and information therein contained are the property of Chief Industries, Inc. and will not be reproduced, copied, or otherwise disposed of, directly or indirectly, and will not be used in whole or in part to assist in making or to furnish any information for the making of drawings, prints or other reproduction hereof, or for the making of additional products or equipment except upon written permission of Chief Industries, Inc. first obtained and specific as to each case. The acceptance of this material will be construed as an acceptance of the foregoing agreement. The technical data contained herein is the most recent available at the time of publication and is subject to modification without notice. Chief Industries, Inc. reserves the right to modify the construction and method of operation of their products at any time without any obligation on their part to modify any equipment previously sold and delivered. Chief Industries, Inc. 800-359-7600 Page 1 T Y P E 2 C A T W A L K S Y S T E M Standard Limited Warranty 1. What is covered by this standard limited warranty? If you are the original retail purchaser of Chief Manufactured Catwalk and Tower System, Chief Industries, Inc. expressly warrants to you that the components manufactured by Chief Industries, Inc. were, on the date of delivery to you, free from defects in the composition of material, Chief workmanship, and design. 2. Duration of this standard limited warranty and notice requirements. This standard limited warranty is applicable under normal use and service to defects which become evident within a period of one (1) year from the date of delivery of your Chief Catwalk and Tower System to you and which are reported in writing to Chief Industries, Inc. within thirty (30) days of discovery of the defect. In any event, Chief’s obligations under this standard limited warranty shall expire thirteen (13) months from the invoice date. In order to obtain warranty service, simply contact Chief Industries, Inc. in writing with the following information: • • • • • • Your name Location of the product Dealer name Description of problem Any pertinent information Date of purchase No claim will be processes until all of this information has been received in writing by Chief Industries, Inc. For warranty service, contact: Chief Industries, Inc. Agri / Industrial Division – Customer Service Department P.O. Box 848 Kearney, NE 68848 3. Chief’s Obligations By purchasing your Chief Catwalk and Tower System subject to this standard limited warranty, you and Chief Industries, Inc. expressly agree to an allocation of the risks of product failure between you and Chief Industries, Inc. This allocation is recognized by both parties and is reflected in the price of the Chief Catwalk and Tower System. 4. Remedies Available From Chief If a defect in your Chief Catwalk and Tower System is covered by this standard limited warranty, Chief Industries, Inc. will supply replacement parts F.O.B. Chief Industries, Inc., Kearney, Nebraska. In addition, during the first year of the warranty, Chief Industries, Inc. will supply the labor necessary to make repairs in your Chief Catwalk and Tower System made necessary by such defect or faults. Chief Industries, Inc. will request at least two competitive bids for labor, as shall in the judgment of Chief Industries, Inc. be the most competitive remedy for the failure covered by this warranty. Of course, Chief Industries, Inc. reserves the Chief Industries, Inc. 800-359-7600 Page 2 T Y P E 2 C A T W A L K S Y S T E M right to reject all such bids and to obtain additional bids. Upon acceptance of a bid by Chief Industries, Inc., Chief Industries, Inc. will authorize the necessary repair. 5. Remedies Not Available From Chief The obligations stated in the preceding paragraph are the sole and exclusive remedies available from Chief Industries, Inc. in the event of problems with your Chief Catwalk and Tower System. Chief Industries, Inc. will not be liable for the costs of dismantling defect parts or installing replacement parts, including labor costs, after the first year, and Chief Industries, Inc. will not be liable for any special, incidental pr consequential damages based upon breach of warranty, breach of contract negligence, strict tort, or any other legal theory. 6. What is Not Covered by this Standard Limited Warranty a) Chief manufactured product not sold as part of the catwalk and tower system. b) Products, components, equipment accessories, or parts manufactured by someone other than Chief Industries, Inc. c) Accessories, Temporary grain storage bins, or bins designed for storage of products other than whole grain storage. d) Damage or loss during shipment of the Chief Catwalk and Tower Systems. e) Damage or loss caused by the acts or omissions of the erector or his agents. f) Damage or loss caused, in whole or in part, by inadequate or improper site selection, inadequate or improper site preparation, inadequate or improper foundation, or any other failure to provide a suitable installation or installation environment for a suitable installation or installation of the Chief Catwalk and Tower System, or any product, component, equipment, accessories, parts used in conjunction with the Chief Catwalk and Tower System. g) Damage or loss caused, in whole or in part, by the use of the Chief Catwalk and Tower System for purposes other than those for which it was designed. h) Damage or loss caused, in whole or in part by unauthorized attachments, modifications, or alterations of the Chief Catwalk and Tower System. i) Damage or loss caused, in whole or in part, by improper or inadequate maintenance, misuse, or abuse of the Chief Catwalk and Tower System. 7. No Other Warranties a) Complete and exclusive agreement: i. This agreement is the complete and exclusive agreement between you and Chief Industries, Inc. concerning the allocation of the risks of damage or loss arising from manufactured component failure. It supersedes all prior agreements, whether written or oral, and all other communications between you and Chief concerning the allocation of those risks. No employee of Chief Industries, Inc. or any other person, including authorized dealers and any other person authorized to sell a Chief Catwalk and Tower System, has any authority to make representations, promises, or warranties in addition to those contained herein. Chief Industries, Inc. 800-359-7600 Page 3 T Y P E 2 C A T W A L K S Y S T E M b) This standard limited warranty is in lieu of all other warranties, expressed or implied, including warranties of merchantability and fitness for a particular purpose. 8. Allocation of Risks This agreement allocates the risks of damage or loss arising from product failure between Chief Industries, Inc. and purchaser. This allocation is recognized by both parties and was reflected in the purchase price of the goods. As purchaser of a Chief Catwalk and Tower System and this standard limited warranty, I acknowledge that I have read the foregoing agreement, understand its provisions and agree to be bound by its terms. Chief Industries, Inc. Agri / Industrial Division P.O. Box 848 Kearney, NE 68848 By:____________________________________________________________ Date:__________________________________________________________ Purchaser’s Signature:____________________________________________ Date Signed:____________________________________________________ Purchaser’s Name:_______________________________________________ Purchaser’s Address:_____________________________________________ Invoice Date:___________________________________________________ Invoice Number:________________________________________________ Dealer:________________________________________________________ Customer:_____________________________________________________ Customer Address:______________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Chief Industries, Inc. 800-359-7600 Page 4 T Y P E 2 C A T W A L K S Y S T E M General Safety Statement Your safety and the safety of others is a primary concern to Chief Industries, Inc. This manual was written to assist in the safe installation of the Catwalk System. It is your responsibility as the owner, builder, operator, or supervisor to know what specific requirements, precautions and hazards exist and to make these known to all personnel working with equipment or on the jobsite so that they can take any necessary safety precautions. All personnel, including the installation crew, must read and understand the information contained in this manual before starting construction. Chief Industries, Inc. is not responsible or liable for the misuse of equipment or operation of personnel or equipment in an unsafe manner. Chief Industries, Inc. assumes no liability with respect to proper construction and inspection, assembly, or use of its products established under applicable laws, all of which is the sole responsibility of the purchaser and those authorized for the installation. Follow all local and federal safety laws and regulations. Make certain that all equipment and personnel conform to any applicable OSHA regulations. Work Area Safety Statement To ensure the safety of all individuals in the work area, only authorized and trained persons shall install, maintain and use the Catwalk System. Under no circumstances should unauthorized individuals be allowed to trespass or be present in the work area. It shall be the duty of all operators to verify that the work area is clean, organized and kept free of all debris and tools that might cause an accidental tripping or falling hazard. Special care should be taken when working from unsafe heights. Common sense dictates that when conditions such as rain or wind prohibit the safe use of equipment, the installation be discontinued. Chief Industries, Inc. strongly recommends that equipment meeting the current OSHA / ANSI specifications be used, whether the individual operator is required by law to do so or not. Properly climbing equipment and secured safety belts should be used at all times when performing operations work, installation or maintenance. Field modifications without the authorization of the manufacturer may present unknown dangers to the operator and must be avoided. Chief Industries, Inc. 800-359-7600 Page 5 T Y P E 2 C A T W A L K S Y S T E M Auxiliary Equipment Safety You may decide to purchase and install “auxiliary equipment” made by other manufacturers. Chief Industries, Inc. has no control over the design and manufacture of this equipment. In view of this, at a minimum, we suggest you do the following: 1. Obtain, read and understand the instructions and cautions of the auxiliary equipment manufacturer. Be certain that all equipment is installed in agreement with those instructions. 2. Check with Chief Industries, Inc. to make sure that your bin system is designed to support any additional loads supplied by the auxiliary equipment. 3. Obtain any applicable safety decals from the manufacturer and make certain they are displayed in a visible location. 4. Make certain that all electrical equipment is properly installed and grounded by a qualified electrician. 5. Check availability and operation of electrical lock out and emergency stop systems. 6. Be certain that all guards and shields are securely in place. 7. Store all operation / maintenance manuals in a safe place for future use. Chief Industries, Inc. 800-359-7600 Page 6 T Y P E 2 C A T W A L K S Y S T E M Packaging and Color Coding Information For your convenience in storing part and installation of the Type 2 Catwalk System, all packages will be color coded, individual items labeled with an appropriate part number, and packages labeled. Example Label for Shipments: Project Number (28599) Detail List of Quantities and Part Numbers: Qty Chief Part Number 20 20 10 9621019 9621010 9621007 Hardware, including bolts, nuts, screws and other small clips/brackets may be divided into smaller packages for ease of use and identification. Where applicable component parts will be marked with the following color codes: 8 Gage 9 Gage 10 Gage 11 Gage 12 Gage 13 Gage 14 Gage 16 Gage Red Light Green Black Pink Dark Blue Brown Yellow Green Chief Industries, Inc. 800-359-7600 Page 7 T Y P E 2 C A T W A L K S Y S T E M Diagram of Catwalk Components To save time and assist as a quick reference guide, the main component parts and the main assemblies created from these specific components will be shown on the following pages. Take note of the orientation of these parts in the top level assemblies to help reduce time and errors during the installation process. End Enclosure Side Truss Cross Brace Walkway Chief Industries, Inc. 800-359-7600 Wind Diagonal Page 8 T Y P E 2 C A T W A L K S Y S T E M Individual Catwalk Components Terminating End Brace 9621048 9621017 9621056 Cross Brace Cross Brace 9621046 9621010 9621054 20” Mounting 30” Mounting 45” Mounting Wind Diagonal Wind Diagonal 9621049 9621007 9621057 20” Mounting 30” Mounting 45” Mounting Side Truss Section 9621031 9621028 9621025 9621019 Terminating End Brace 20” Mounting 30” Mounting 45” Mounting Truss Section 3’-4” Length 6’-8” Length 10’ Length 20’ Length End Enclosure End Enclosure 9621043 9621021 9621051 20” Mounting 30” Mounting 45” Mounting Chief Industries, Inc. 800-359-7600 Page 9 T Y P E 2 C A T W A L K S Y S T E M Walkway 9621037 9621036 9621035 3’-4” Length 6’-8” Length 10’ Length Walkway Mounting Areas / Weight Chief Industries, Inc. 800-359-7600 Page 10 T Y P E 2 C A T W A L K S Y S T E M Before You Begin Read the entire installation manual and study the standard detail drawings supplied with shipment. Check the packing list for parts received and make sure you have everything listed before signing off on the packing list or bill of lading. Chief Industries, Inc. must be contacted within (7) seven days after delivery if there is a shortage of parts. Unloading: When unloading the truck, layout various components according to the number identification and accessibility to the construction site. The following describes the basic order in which the components will be assembled. 1. 2. 3. 4. 5. 6. Wind Diagonals Cross Braces End Brace Side Truss End Enclosure Walkway Storage of Materials: All galvanized items should be protected from weather and moisture condensation to prevent the formation of white rust. Small parts, such as bolts, nuts, washers, etc., are just as important to an installation as the large ones. Make certain these are located and checked before disposing of containers or packing. Ideally, these items should be stored in their shipping containers until ready for use on the project. They have been packaged to protect against moisture and each container is identified as to its content. Sheet steel should be stored with one end low to prevent moisture condensation. Chief Industries, Inc. shall not be held responsible for materials that are not protected or stored properly after delivery. Claims for Shortages or Damaged Parts: All claims for shortages or damaged parts must be indicated at the time of delivery. An authorized representative of the contractor must be responsible for checking the material as it is unloaded from the truck. If material is unloaded at the building site, and the installation is subcontracted, we recommend that the contractor be informed of his responsibilities. Signing the packing list is your confirmation of complete shipment. If delivery is incomplete or damaged you should promptly file a claim with the delivering carrier. For shortages determined upon receipt of shipment, a back order will be immediately issued and priority given for earliest possible delivery. Shortages determined after acceptance of materials will be handled as a special house order and will be given priority for earliest possible delivery. The customer will be charged for these materials. If he receives an allowance from Chief Industries, Inc., his account will be credited. Chief Industries, Inc. liability in regard to shortages is limited to supplying the missing materials including Chief Industries, Inc. 800-359-7600 Page 11 T Y P E 2 C A T W A L K S Y S T E M freight charges by a commercial carrier. Claims for lost time or completion penalties will not be honored. Manpower Requirement Estimate: Please note that the size of crew will vary depending upon the size and complexity of the project and familiarity with installation procedures. When appropriate your crew should consist of the following to ensure the project is completed in the time frame allowed. • • • • 1 worker familiar with components and drawings, Ground Level 1 worker to unload and stage parts, Top Level 2 workers installing parts & setting fasteners 1 supervisor Please note that this is a partial list of the tools and equipment needed for installation. Individual installations may vary. Tool and Equipment Requirement Estimate: • • • • Electric Hoist, minimum 2 ton Open end wrenches and sockets Impact wrenches with sockets Standard drift pins, 9/16” tapered shank Tips and Shortcuts: The parts are packaged to reduce cost. For the most efficient construction of the complete project please consider the following: 1. Unbundle and sort all components into stacks of similar parts. 2. Layout all parts as shown in the exploded views in the manual. 3. Chief Industries, Inc. ships an additional 10% hardware and fasteners. Collect all dropped fasteners to ensure you have enough to complete the project. 4. Verify that you use the correct components in each catwalk section before proceeding to the next. Chief Industries, Inc. 800-359-7600 Page 12 T Y P E 2 C A T W A L K S Y S T E M Bolt Torque The correct bolts and bolt torque values as specified and provided by Chief Industries, Inc. must be used throughout the entire assembly of this catwalk system. Failure to follow these instructions could result in structural damage and/or failure of the catwalk system. Catwalk Sections Before starting make sure you have a copy of the packing list, this will assist you in identifying the correct part numbers required for your system. All local, state and federal safety regulations and requirements must be strictly observed and enforced. Installation is largely a matter of individual choice and experience. The following general outline is provided for reference only. Note: Leave all hardware (bolts, nuts, washers) loose until all components have been added. This will allow you to square the final catwalk assembly and ensure that tolerances do not accumulate. Note: Bolt heads are to be installed inside of the catwalk walkway. Chief Industries, Inc. 800-359-7600 Page 13 T Y P E 2 C A T W A L K S Y S T E M 1. Place truss sides upside down with the midrails facing inward. With the midrails facing inward the side truss diagonal bracing will be in opposite directions. Verify the correct catwalk type / style by looking at the weld dots located near the end of the catwalk. Truss Section One Weld Dot Indicates Type 1 Chief Industries, Inc. 800-359-7600 Two Weld Dots Indicates Type 2 Page 14 T Y P E 2 C A T W A L K S Y S T E M 2. Place cross braces on truss sections. Attachment plates on the cross braces will match up with attachment plates on the truss sides. Verify that walkway tabs are located on the desired walkway side. These connections will require (6) 3/4” x 2” Grade 5 bolts with lock washer and nut. Cross Brace 3. Note that standard sections of catwalk will not have a cross brace bolted to the last attachment plate on each catwalk section. 4. If installing a start or end section of catwalk only please refer to the following steps: a. Terminating end members are used at the start or end of a catwalk run (total length). b. The start or end sections of catwalk will have a terminating end member bolted to the last attachment plate on the truss sections. Use the same hardware for the terminating end member as used for the cross braces. Chief Industries, Inc. 800-359-7600 Page 15 T Y P E 2 C A T W A L K S Y S T E M 5. Install wind diagonals on the cross / end braces. The attachment plate on the wind diagonal will match up with the bottom side of the attachment plate on the cross / end braces. Wind diagonals are to be positioned parallel to one another as shown below. If the position of the wind diagonal interferes with the conveyor, refer to the enlarged drop through opening section in this manual. These connections will require (2) 3/4” x 2-1/2” Grade 5 bolts with lock washer and nut. Wind Diagonal Chief Industries, Inc. 800-359-7600 Page 16 T Y P E 2 C A T W A L K S Y S T E M 6. Install End enclosure (required on last section of the catwalk run only). These connections will require (4) 3/4” x 2” Grade 5 bolts with lock washer and nut. End Enclosure Chief Industries, Inc. 800-359-7600 Page 17 T Y P E 2 C A T W A L K S Y S T E M 7. Flip the catwalk over so the cross bracing and wind diagonals are on the bottom side. 8. Install the walkway on the slotted tabs located on the cross braces. For every section of walkway these connections will require (8) 5/16” x 1-1/2” Grade 5 carriage bolts with diamond washers and whiz flange nuts per 10’ section. Walkway If field modifications are required, contact Chief Industries, Inc. before proceeding. If there are fabrication errors, or shortages occur, do not substitute similar components. Chief will not be responsible for unauthorized modifications or for damages incurred during shipping, staging or installation. Chief Industries, Inc. 800-359-7600 Page 18 T Y P E 2 C A T W A L K S Y S T E M Connect Catwalk Sections To complete the total length of catwalk required you must next bolt the completed individual sections together. 1. Bolt a cross brace to the truss sides on the end of one section only. Bolt this cross brace sat the designated holes as described previously. These connections will require (6) 3/4” x 2” Grade 5 bolts with lock washer and nut. 2. Install one wind diagonal to a cross brace on the end of each section as described previously. This connection will require (2) 3/4” x 2-1/2” Grade 5 bolts with lock washer and nut. 3. Bolt the truss sides from each section together. These connections will require (4) 3/4” x 2” Grade 5 bolts with lock washer and nut. 4. Repeat these steps to install additional sections as required until the entire catwalk run is complete. Note: Leave all hardware (bolts, nuts, washers) loose until all sections have been added. This will allow you to square the final catwalk assembly and ensure that tolerances do not accumulate. 5. At this point assembled conveyor sections may be installed on the catwalk. 6. Hoist the catwalk into place using an appropriate capacity crane. The catwalk must be supported at points equal to half the catwalk length (free span length. Note: The number of catwalk sections that can be connected together is dependent upon the capabilities of the crane lifting the unit into place. When lifting the combined weight of the catwalk, any conveyor sections attached and any other loads such as rigging must be considered into the total weight. Chief Industries, Inc. 800-359-7600 Page 19 T Y P E 2 C A T W A L K S Y S T E M Catwalk Section Weights The weights of the assembled catwalk sections only are as follows: Type 1 = 70 lbs/ft Type 2 = 80 lbs/ft Conveyor Mounting The conveyor may be mounted on the ground, before lifting into place or after the catwalk has been installed. 1. Determine the mounting locations 2. Span angle iron (not supplied) across the cross bracing and weld at all contact points 3. Lift and position the conveyor into place 4. Weld or bolt the conveyor to the mounting angle. Mounting locations on the conveyor must rest on the angle iron. Do not drill into or cut the cross members when mounting the conveyor. Note: If your catwalk structure interferes with the conveyor discharge see the enlarged drop thru opening in this manual. Do not cut any part of the catwalk to fit the conveyor or conveyor drive unit. Install Catwalk Tower Support System Tower Top Load Beams Catwalk Support Beams Chief Industries, Inc. 800-359-7600 Page 20 T Y P E 2 C A T W A L K S Y S T E M After the support tower structure has been assembled and secured in place the catwalk can be installed. The support tower structure is designed to support a top load such as a conveyor or catwalk and this load must be supported by a top load beam bolted/welded to the top of the support tower structure. The catwalk support beams/tower top load beams can be field fabricated by millwright or purchased separately from Chief. (Note: Catwalk support beam recommended size is W6x20 if field fabricated. Contact customer service for tower top load beam recommended size if field fabricated.) 1. Lift the assembled catwalk into place using rigging with appropriate support for the catwalk as specified previously. 2. Locate the catwalk as desired over the tower support system. 3. Install catwalk support beams to catwalk cross braces. a. Catwalk support beams must span two cross braces. b. Catwalk support beams must contact the cross braces only and cannot be supported by or be welded to the wind diagonal bracing. c. Catwalk support beams must be fully welded at all contact points with 1/4” fillet weld. 4. Install the tower top load beams across the tower posts as shown. a. Tower top load beams must span 2 tower posts. 5. Install the catwalk support beams to the tower top load beams. a. Catwalk support beams cannot be welded directly to the tower horizontal bracing or be supported by any part of the tower. Catwalk support beams must contact the tower top load beams only. b. Catwalk support beams must be located directly under the catwalk truss sides. c. Catwalk support beams must be fully welded at all contact points with 1/4” fillet weld. 6. Repeat the above steps till all catwalk sections are installed to the appropriate support structures. Chief Industries, Inc. 800-359-7600 Page 21 T Y P E 2 C A T W A L K S Y S T E M Install Catwalk Bin Peak Support System Catwalk Support Beams Bin Peak All catwalk and walk around systems must be adequately supported before installation on a bin peak. After the bin peak structure has been assembled and secured in place the catwalk can be installed. 1. Position base support beams on the bin peak, perpendicular to the overall length of the catwalk. Load beams must extend past the bin peak flange. Fully weld at all contact points with 1/4” fillet weld. Base Support / Load Beams 2. Position intermediate support beams perpendicular to the base support beams. The length of this intermediate beam shall extend at a minimum, to span 2 catwalk posts/cross members at a minimum in length. Intermediate support beam must be located directly beneath the catwalk truss sides. Fully weld at all contact points with 1/4” fillet weld. Chief Industries, Inc. 800-359-7600 Page 22 T Y P E 2 C A T W A L K S Y S T E M Intermediate Support / Load Beams 3. Locate the catwalk over the tower support system. Support by cross members or truss sides only Span 2 posts/cross members minimum a. Catwalk support beams must span two cross braces minimum. b. Support beams must contact the cross braces or truss sides only and cannot be supported by or be welded to the wind diagonal bracing. c. Support beams must be fully welded at all contact points with 1/4” fillet weld. Note: Failure to support the catwalks as shown above may result in structural failure. Chief Industries, Inc. 800-359-7600 Page 23 T Y P E 2 C A T W A L K S Y S T E M Enlarged Drop through Opening Cut Cross Brace Reverse Wind Diagonal If additional clearance is required for your conveyor drop through, the following process is recommended. Note that only one (1) enlarged drop through opening can be used in any given section and must not be applied at a section connection location. 1. At the desired location remove two wind diagonals. 2. Cut cross member in this location, removing the center section of the tube between the attachment plates. Note: Do not remove the cross member attachment plates. 3. Reinstall cross braces on each side of the opening. 4. Reverse one wind diagonal (as shown) to form a V shaped opening. 5. Re- Torque bolts as required. 6. Reinforce both side truss sections over the opening (un-braced length) with a continuous beam welded to the lower stringer tube. a. The length of this tube shall extend to the next cross brace beyond the opening at each end of the opening. b. This splice beam shall be constructed of a minimum of a 2” x 2” x 1/4” steel angle for a center drop through opening and a minimum of a W 4 x 13 for a end drop through opening. c. Support beams must be fully welded at all contact points with 1/4” fillet weld. 7. If an end drop through opening is desired the splice beam described above can also be used as the catwalk support / spreader beam. Note that a splice angle may not be used as a catwalk support / spreader beam. Chief Industries, Inc. 800-359-7600 Page 24 T Y P E 2 C A T W A L K S Y S T E M Summary While we do not intend to suggest that the preceding assembly instructions are the only way to install Catwalk Systems, experienced contractors indicate that we have described the quickest, safest, and most cost-effective method. Separate assembly instructions and installation information is provided when required for accessory items. Unless stated in the quotation, Chief Industries Inc. is not responsible for the design of any equipment locations, external interference, required loadings, and/or additional attachments that may be placed upon Catwalk System products. Common sense safety precautions should always be observed. Chief Industries Inc. will accept no liability arising from the misuse of equipment. Always Work Safely! Should you have any questions concerning assembly instructions, parts or drawings, please feel free to contact us at any of the following. Chief Industries, Inc. 4400 East 39th Street • PO Box 848 Kearney, NE 68847 Phone 800.359.7600 For more information about Chief Industries, Inc. and additional products or services visit our website www.agri.chiefind.com Chief Industries, Inc. 800-359-7600 Page 25
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