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AB20002, Rev 10
09/18
tRuss-t Boom
21', 30' & 40'

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Summary of Contents for Demco TRUSS-T BOOM 21

  • Page 1 AB20002, Rev 10 09/18 tRuss-t Boom 21’, 30’ & 40’...
  • Page 2: Table Of Contents

    INtRoDuCtIoN Thank you for purchasing a Demco spray boom. We feel you have made a wise choice and hope you are completely satisfied with your new boom. If you have any questions regarding the applications of certain solutions or chemicals, contact your chemical supplier and follow chemical manufacturer recommendations as well as all licensing and use restrictions or regulations.
  • Page 3: Safety , Signal Words

    If you have questions not answered in this manual, require additional copies, or if your manual is damaged, please contact your dealer or DEMCO, 4010 320th Street, Boyden, IA 51234 ph: (712) 725-2311 or Toll Free: 1-800-543-3626 Fax: (712) 725-2380 or 1-800-845-6420 http://www.demco-products.com...
  • Page 4: Equipment Safety Guidelines

    sAFEtY SAFETy...yOu CAN LIvE WITH IT EquIPmENt sAFEtY GuIDELINEs Every year many accidents occur which could have been avoided by a few seconds of thought and a more careful approach to handling equipment. You, the operator, can avoid many accidents by observing the following precautions in this section.
  • Page 5: Safety Sign Care

    • Always order and install tires and wheels with appropriate type and load capacity to meet or exceed anticipated weight to be placed on the equipment. • Refer to “TIRE INFLATION CHART” in your owners manual for maximum tire pressure for a Demco Grain Cart. REmEmBER Your best assurance against accidents is a careful and responsible operator. If there is any portion of this manual or function you do not understand, contact your local authorized dealer or manufacturer.
  • Page 6: Before Operation

    sAFEtY BEFoRE oPERAtIoN: • Carefully study and understand this manual and the Owner’s Manual. • Do not wear loose-fitting clothing which may catch in moving parts. • Always wear protective clothing and substantial shoes. • It is recommended that suitable protective hearing and eye protection be worn. • Operator may come in contact with certain materials which may require specific safety equipment relative to handling of such materials. (Examples: extreme dust, molds, fungus, bulk fertilizers, etc.) • Keep wheel and lug nuts tightened to specified torque. • Assure that agricultural implement tires are inflated evenly. • Give unit a visual inspection for any loose bolts, worn parts, or cracked welds, and make necessary repairs. Follow maintenance safety instructions included in this manual. • Be sure there are no tools lying on or in equipment.
  • Page 7: Following Operation

    sAFEtY • When halting operation, even periodically, set tractor or towing vehicles brakes, disengage PTO, shut off engine, and remove ignition key. • Be especially observant of operating area and terrain. Watch for holes, rocks, or other hidden hazards. Always inspect area prior to operation. DO NOT operate near edge of drop-off or banks. DO NOT operate on steep slopes as overturn may result. Operate up and down (not across) intermediate slopes. Avoid sudden starts and stops. • Pick the most level possible route when transporting across fields. Avoid edges of ditches, gullies, and steep hillsides.
  • Page 8: Highway And Transport Operations

    sAFEtY hIGhWAY AND tRANsPoRt oPERAtIoNs SAFETy CHAINS: If equipment is going to be transported on a public highway, always follow state and • local regulations regarding safety chains and auxiliary lighting. Be sure to check with local law enforcement agencies for your own particular regulations. Only safety chains (not elastic or nylon/plastic tow straps) should be used to retain connection between towing and towed machines in event of separation of primary attaching system.
  • Page 9: Performing Maintenance

    sAFEtY PERFoRmING mAINtENANCE • Good maintenance is your responsibility. Poor maintenance is an invitation to trouble. • Make sure there is plenty of ventilation. Never operate engine of towing vehicle in a closed building. Exhaust fumes may cause asphyxiation. • Before working on this machine, stop towing vehicle, set brakes, shut off engine and remove ignition key. • Always use safety support and block wheels. Never use a jack to support machine. • Always use proper tools or equipment for job at hand.
  • Page 10: Bolt Torque

    BoLt toRquE toRquE sPECIFICAtIoN Torque figures indicated are valid for non-greased or non-oiled threads and heads unless otherwise specified. Therefore, do not grease or oil bolts or capscrews unless otherwise specified in this manual. When using locking elements, increase torque values by 5%. * GRADE or CLASS value for bolts and capscrews are identified by their head markings.
  • Page 11: Spray Tip Assembly And Installation

    SPRAyER TIP ASSEMbLy INSTALLATION DEMCO booms are sold in 21, 30 and 40’ foot models. Tip placement will depend on the tip being used. When broadcast spraying with Flat Spray Tips, 20 inch tip spacing must be used and when spraying with Floodjet Tips, 40 inch spacing must be used.
  • Page 12: Sprayer Calibration Procedures

    CALIBRAtIoN sPRAYER CALIBRAtIoN PRoCEDuREs NOTE: To avoid wind drift, use lower pressure and higher spray volume. Guidelines For Sprayer Calibration Before calibrating your sprayer, first determine whether each nozzle is delivering at a uniform rate. Place quart jars under all nozzles and watch as they fill up. The level should rise uniformly and take the same time (within 10%) for all nozzles to fill the jars.
  • Page 13: Spray Tip Charts

    sPRAY tIP ChARts FLAT SPRAy NOzzLE Tabulations for all the following charts are based FOR bROADCAST SPRAyING on spraying water. For different weight fertilizer solutions, Gallons Per Acre obtain the appropriate conversion factor from the table Liquid Nozzle based on 20” Nozzle Spacing below.
  • Page 14: Nozzle Parts Breakdown And List

    REPLACEmENt PARts 1/2” TEEjET DRIP FREE NOzzLES CONvENTIONAL NOzzLES and bOOM CLAMPS 1/2” TEEjET DRIP FREE NOzzLE PARTS LIST REF. NO. PART NO. DESCRIPTION 09310 1/2” Single End Nozzle Assembly(Inc’d #6) 09311 1/2” Single Tee Nozzle Assembly(Inc’d #6) 07785 1-1/4” Square Boom Clamp (Includes Bolt) 07786 1-1/2”...
  • Page 15: 21' - 30' Truss-T Boom Parts Breakdown And List

    REPLACEmENt PARts 21’ AND 30’ TRuSS-T bOOM PARTS bREAKDOWN NOTE: Bracket #27 is only used when conventional nozzles are used. TRuSS-T bOOM PARTS LIST REF. PART QTy. DESCRIPTION 00183-95 3/8” dia. x 6-3/4” lg. Removable Pin 02687-76 Boom Storage Bracket 00182 1/8”...
  • Page 16: 40' Truss-T Boom Parts Breakdown And List

    REPLACEmENt PARts 40’ TRuSS-T bOOM PARTS bREAKDOWN 40’ TRuSS-T bOOM PARTS LIST REF. PART QTy. DESCRIPTION 00183-95 3/8” dia. x 6-3/4” lg. Removable Pin 02687-76 Boom Storage Bracket 00182 1/8” Small Hair Pin 05678 5/16”-18 UNC x 1 1/2” Square U-Bolt 02802 5/16”-18 UNC Nylon Insert Locknut 09122-76...
  • Page 17: Sprayer Checklist

    Anti Freeze through the entire plumbing system to protect valves and other components. NOTE: Demco does not and will not make any recommen- dations concerning application of various chemi- cals or solutions. These recommendations relate to either amount or procedure of materials applied. If...
  • Page 18 Page 18 AB20002...
  • Page 19 Page 19 AB20002...

This manual is also suitable for:

Truss-t boom 30Truss-t boom 40

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