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Strip Till- Brochure

Operator’s & Repair Parts ManualFor Models: Do Not Use or Operate This Equipment Until You Have Read and Understood This ManualThe purpose of this manual is to explain maintenance requirements and adjustments which are necessary for the most efficient operation of the machine. Read this manual thoroughly and com-pletely before using your machine. Keep this manual handy for reference when questions arise.Should you have questions or difficulties which your dealer or representative are unable to answer, please call or write:Bigham Brothers, Inc. 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Telephone: (806) 745-0384 Fax: (806) 745-1082 SAFETY FIRSTPREVENT ACCIDENTS BY “THINKING SAFETY”IN UNLOADING, SETTING UP, MOVING, STORAGE AND OPERATING ALL EQUIPMENT.© 2011 Bigham Brothers, Inc. This document may not be reproduced in whole or in part without prior written permission of Bigham Brothers, Inc. P/N B11-1ST Revised 9-23-2011. Printed in the U.S.A. Specifications and design subject to change without notice.$7.0 0U.S.789-210789-211789-212Gang Bundle Assembly Strip Till 4x7”Gang Bundle Assembly Strip Till 7x7”Gang Bundle Assembly Strip Till 7x7” (Wrap Around)Super DutyStrip Till Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.A MESSAGE TO THE OWNER AND OPERATOR:This machine was carefully designed and manufactured to give you dependable service. To keep it running efficiently, read the instructions in this Operator’s Manual. Check each item and acquaint yourself with the adjustments required to obtain efficient operation and maximum performance. Remember, the machines performance depends on how you operate and care for it.After the operating season, thoroughly clean your machine and inspect it. Preventive maintenance saves time and pays dividends. Your dealer has original equipment parts which assure proper fit and best performance. Record the model number, serial number and date of purchase in the space provided on this page. Your dealer needs this information to give you efficient service when you order parts or attachments. The model number and serial number appear on the identification plate on the front left side of the tool bar mast. The Warranty on your machine is included with this manual. Your dealer will review both this manual and the warranty with you when you take delivery of your machine.WARRANTYBigham Brothers, Inc. warrants all products of its manufacture to be free from defects in materials and workmanship for a period of six months from date of delivery to the retail purchaser. Parts assumed to be defective must be returned F.O.B. Lubbock, Texas for our inspection or inspected in the field by our authorized representative. Our obligation under this warranty is limited to replacement or repair of the defective part and does not cover other damages to persons or property. Other than the aforesaid, no warranties of merchantability or fitness for a particular purpose will apply. We do not assume liability for altered or remanufactured components or machines or applications beyond their intended use. Some states do not allow limitation of how long an implied warranty lasts, or exclusions of, or limitations on relief such as incidental or consequential damages, so the above limitations or exclusion may not apply to you. This warranty gives you specific legal rights and you may have other rights which vary from state to state.Warranty does not cover damage due to abuse, neglect, collision, towing, pulling, normal wear and tear or any other factor beyond the control of the manufacturer. Tool bars that are bent, bowed or that have been welded on or modified in any way are specifically excluded from any warranties.LIMITED LIFETIME WARRANTY ONTOOL BAR CLAMPSBigham Brothers, Inc. will replace any ductile iron clamp body that breaks or cracks under normal use for as long as the original purchaser owns them. This includes all replaceable bolt ductile iron clamps sold by Bigham Brothers, Inc. after December 31, 1987.Clamps that fail should be returned to Bigham Brothers, Inc. freight prepaid along with caps, bolts, set screws and nuts for evaluation. If found to have failed under normal operating conditions, a new clamp body will be returned along with your old caps, bolts, set screws and nuts. Only clamps that have been used with Grade 2 bolts of the proper size will be replaced. All other provisions of the above warranty apply. (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 1 Form # B11-1STBIGHAM BROTHERS, INC. ContentsPage .....................................Description Inside Front Cover ...............Warranty 1 .........................................Table of Contents 2 ......................................... Safety Precautions 3 ......................................... Introduction 4 .........................................Gang Placement 5 .........................................Mounting Photos 6 .........................................Coulter Adjustment 7 .........................................Row Cleaner Adjustment 8 .........................................Tillage Shank Adjustment 9 .........................................Covering Disc Adjustment 10 .........................................Mounting Covering Discs 11 .........................................Rolling Basket Adjustments 12 .........................................Attaching Implement13 .........................................Troubleshooting 14 ......................................... Parts Breakdown--Gang (Wrap Mount) 15 ......................................... Parts Breakdown--Gang (Rear Mount)16 ......................................... Parts Breakdown--Adjustable Coulter 2008-2011 17 ......................................... Parts Breakdown--Ridgid Coulter, 2011 to Present 18 ......................................... Parts Breakdown--Ridgid Coulter, 2008-2011 19 ......................................... Parts Breakdown--Row Cleaner Assembly 20 ......................................... Parts Breakdown--Covering Discs 21 ......................................... Parts Breakdown--Disc Bundle, 20” 22 ......................................... Parts Breakdown--Tillage Shanks 23 ......................................... Parts Breakdown--Rolling Baskets 24 ......................................... Parts Breakdown--Roller Bundle 25 .........................................Torque SettingsPage 2Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Safety Precautions:Be alert when you see this symbol in the instructions.It warns of a hazard which might lead to injury.It means: “Attention Become alert Your Safety Is Involved”Before Use: DO NOT operate this equipment until you have read and understood this manual.* Assure operators have read and are familiar with the instructions contained in the Operator’s Manual * If working on the Super Duty Strip Till, make sure it is level and stable. Proper stands should be lowered and secured. Use support blocks when necessary. The work area should be on a level, load bearing surface, e.g. concrete floor. NEVER, NEVER work under a Strip Till while it is supported by only the tractor’s hydraulics.* Consult the “Tractor Manufacturers Manual” for instructions on safe mounting of implements and operating methods.* Never stand between the Strip Till and tractor with engine running.During Use:* Check and tighten all bolts after 30 minutes of initial operation and after adjustments have been made.* Assure the Super Duty Strip Till is correctly attached to the tractor.* Be alert to underground obstructions, e.g. large stones, tree roots, cables, pipe lines, etc. Should an obstruction be encountered, STOP IMMEDIATELY AND INVESTIGATE. NOTIFY THE APPROPRIATE AUTHORITY IF BURIED CABLES OR PIPELINES ARE SUSPECTED. Non-hazardous obstructions should be removed before continuing operation.* Keep operating speeds at a safe level.* Never allow anyone to ride on the Super Duty Strip Till during operation.* Never travel in reverse with the Super Duty Strip Till in the operating position. * Never carry out adjustments or repairs to a mounted Super Duty Strip Till unless the tractor engine is stopped and the Super Duty Strip Till is firmly supported or lowered to the ground.* Inspect the Super Duty Strip Till for wear or damage on a regular basis.* Check all nuts, bolts and other fasteners for tightness on a regular basis. Replace worn fasteners as needed.* Carry out maintenance and lubrication procedures as detailed in this manual.* When disconnecting the Super Duty Strip Till do so on a level, hard surface. Assure it is left in a stable position with proper stands in the correct position. Always:* Wear gloves and safety footwear when handling worn parts with sharp edges.* Assure the Super Duty Strip Till is not operated by untrained persons.* Use the Super Duty Strip Till only for the purpose for which it was designed and tested, and always according to the instructions contained in this manual.* Reduce speed when transporting over uneven or rough terrain.* Place a “Slow Moving Vehicle” emblem on the rear of the unit before driving on open roads.* Keep hands, feet and clothing away from all moving parts.* Exercise care when adjusting gangs, disc coulters or other tooling. The assemblies are heavy and may have sharp edges.“Left” and “Right” of the machine refers to the side when standing behind the Strip Till and facing the tractor. (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 3 Form # B11-1STBIGHAM BROTHERS, INC.BE A SAFE OPERATOR, THINK BEFORE OPERATING.READ ALL INSTRUCTIONS BEFORE ASSEMBLY OR OPERATION OF THE STRIP TILLINTRODUCTION:Soil compaction and hardpan can quickly become a limiting factor to crop yields. These conditions can be created by many factors including field traffic, livestock and working fields that are too wet. As soil density increases, a physical barrier develops which seriously inhibits plant root development and water movement through the soil.In addition, seed germination can be limited by cool soil temperatures early in the planting season when soil is left untilled and covered with residue.Tillage helps alleviate the problems associated with hard pan and cool soil temperatures, but full tillage can destroy surface residue and lead to erosion. Tilling the full width of the field also has a cost in horsepower, fuel, tooling, and mechanical maintenance.The Bigham Brothers Super Duty Strip Till is a unique soil loosener that prepares a mellow seed bed, but leaves other surface areas intact. Standing stalks, surface residue, or cover crops outside of seedbed lanes prevents wind and water erosion. Deep placement of fertilizer may also be accomplished by use of delivery tubes to the rear of each tillage shank. The Super Duty Strip Till should not be operated in wet soils nor in actively growing crops. It should be operated only in dry soil conditions, prior to planting, or prior to Fall and Winter precipitation. This will allow maximum absorption and storage of water for future use.Strip Till on Stack Fold Tool BarPage 4Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.The BIGHAM BROTHERS Super Duty Strip Till is equipped with parallel linkage tooling gangs—one for each crop seedbed. Each gang works approximately 17” of soil. Normal configuration includes a leading trash-cutting coulter, row cleaners, a tillage shank, covering discs and rolling basket. NOTE: It is strongly advised that the depth of the desired soil loosening be identified and the working depth of the Super Duty Strip Till tillage shank set to operate at that depth. Working deeper than necessary rarely has any economic response. Operating deeper than necessary increases fuel consumption and horsepower requirements.Gang PlacementPlace the gang so the point runs under the center of the stalk row. Checking Tillage Performance and LooseningThe degree and extent of loosening may be checked by several methods.Probe: A penetrometer can be purchased which will provide a reading in lbs./in required to push the unit into the ground.One can make a probe from a piece of 48” x 3/8” round rod. Sharpen one end as you would a pencil, and bend the opposite end to form an “L-shaped” handle. Although no readings can be taken, one can easily determine be the amount of force required to push the probe into the soil and if compaction has been eliminated. (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 5 Form # B11-1STBIGHAM BROTHERS, INC.Mount Gangs to Tool BarTwo types of gang mounting assemblies are available: the Rear Mount assembly and the Wrap-around assembly. Each is fastened by use of two u-bolts for each gang. See pictures 1-5. Position each clamp so the tillage shank point is centered on the crop row. Note alignment cuff on rear mounted clamp assembly. If equipped with screw jack, fill the jack cavity with grease once each season through the grease zerk in picture three.Picture 1 Picture 2 Picture 3Picture 4 Picture 5Page 6Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Adjust Front CoulterTwo types of front-mounted residue cutting coulters with depth control bands are available, a Rigid Coulter that mounts directly to the gang and does not adjust vertically. The Adjustable Coulter allows vertical adjustment via the screw jack (picture 6).Using the adjustable coulter allows working height of the gang independently of the other tooling. Loosen the set-screw on the front of the gang (picture 6) and the bounting bolts on the side plates (picture 7) before adjusting. After adjusting, retighten bolts.On a gang with rigid coulter, all tooling heights are set to the rigid coulter.See pictures 6-8.Picture 6 Picture 7Picture 8 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 7 Form # B11-1STBIGHAM BROTHERS, INC.Adjust Row CleanersRow cleaners come in equal numbers of left- and right-hand units, and should be mounted in an alternating pattern.Height adjustment is made by use of two set screws. Row cleaner blades should set only deep enough to brush resi-due aside. Setting the row cleaners blades too far into soil can cause premature blade wear or damage.See pictures 9-10.Picture 9 Picture 10Page 8Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Picture 10Adjust Tillage ShankA variety of tillage shanks may be installed on the gang.Most common is the 1x4” ripper shank. It may also come in the break away shear bolt model. The shear bolt is mounted in the front bolt hole (pictures 11-13).Other ripper shanks or fertilizer knives may be installed.Shank height is adjusted by use of two set screws on the side of the main gang tube.See pictures 11-15.Picture 11 Picture 12 Picture 13Picture 14 Picture 15 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 9 Form # B11-1STBIGHAM BROTHERS, INC.Adjust Covering DiscsTwo basic versions of covering discs are available: the Covering Disc Bundle with 16” or 17” blades, or the Super Duty Disc Hiller Bundle with heavier cast hubs and 20” disc bedder blades.Each is mounted on the rear 4x4 inch tooling tube with 1x3” shanks and matching clamps.Working width is adjusted by sliding the clamps along the tooling bar. Height is adjusted by use of two set screws mounted in the clamp.Blade pitch on the Covering Disc Bundle is adjusted by rotating the spindle where it is attached to the covering disc shank. The shank is twisted to a 10 degree angle. The spindle is cut at a 10 degree angle, or “cam,” to provide from 0 degrees to 20 degrees in pitch. Caution: Make sure covering disc hubs are mounted on the correct side of the gang. The hub is fastened to the spindle with either a left-hand or right hand bolt, and MUST be run in the proper direction or the spindle nut will loosen and fall off. See next page for details.See pictures 16-19.Picture 16 Picture 17 Picture 18 Picture 19Covering Disc Bundles Disc HIller BundlePage 10Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Warning Position covering disc hubs as detailed below.712-170, 712-171 Covering Disc Hubs Mounted on Strip Till GangsDescription:(1.) Covering Disc Hubs MUST run in the correct direction or the spindle bolt will work loose, resulting in loss of disc and bearings. The spindle is fastened with either a left-handed or right-handed bolt. It MUST be installed on the proper side of the row to insure that the bolt stays tight during operation.(2.) Spindles are different on left- and right-handed hubs (left-handed bolt/right handed bolt).(3.) Spindles are made to run with EITHER a Link Belt/BBI Premium bearing OR a Fafnir (a few older models) bearing. They will not interchange.Right-hand hub on LEFT side Right hand bolt with red marking Left hand spindle detailIdentification of Left-Hand and Right-Hand hubsHubs are made left- or right-handed by the Spindle Bolt. Upper right shows marking on the hex spindle shaft. There are three markings:(A.) F/L: The spindle marked ‘F’ takes the Fafnir bearing only. The ‘L’ spindle will use either Link Belt or BBI Premium bearings. Order bearings accordingly.(B.) LH/RH Marks spindle as either Left-Hand or Right Hand. This refers to the direction the spindle bolt tightens. A left-hand spindle uses a left-hand thread spindle bolt. A right-hand spindle uses a right-hand thread spindle bolt. The right hand bolt may be marked with RED paint.(C.) Soil Flow Direction - The arrow points to the REAR of the machine.Strip Till Field Installation Instructions:Locate the Covering Disc assemblies as shown in the photo at left. Note that the hub with the right-hand bolt is placed on the left side of the gang as seen from the rear. The right-hand bolt points right and the left-hand bolt points left as seen from the rear of the plow.Rear of MachineRear of MachinePicture 20 Picture 21 Picture 22Picture 23 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 11 Form # B11-1STBIGHAM BROTHERS, INC.Adjust Rolling Baskets or Optional RollerBasket (or roller) pressure is adjusted by tightening or loosening the spring tension on the basket arm. Loosen the jam nut on the spring pressure bolt (picture 25) and loosen main spring pressure nut to INCREASE basket pressure on soil, or tighten main spring pressure nut to DECREASE basket pressure on soil.Adjust until desired firming/clod breaking pressure is achieved.Note two greaseable flange bearings (picture 27) are located at either end of the basket/roller axle. Grease these bearings once per day.See pictures 24-28.Picture 24 Picture 25 Picture 26Picture 27 Picture 28Page 12Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Attaching Tractor to Super Duty Strip TillChoosing the proper tractor:1. It is extremely important to utilize a tractor with sufficient horsepower and traction. Soil conditions will effect horsepower requirements, but allow 20-30 HP per row, i.e., 4 rows requires a 80-120 HP tractor.2. The Super Duty Strip Till is equipped with rear-extending gangs. The three-point linkage of the tractor must allow 36 inches between the ground and the lower hitch points in the “fully raised” position to provide adequate transport clearance.3. Ensure that both the right and left lift arms are identical in length, and the tool bar is level (right to left). They must be equal to achieve uniform operating depth and transport clearance.4. The three-point lift linkage should be locked into the fixed position, not the float position.5. Sway blocks or stabilizing chains should be adjusted to minimize lateral movement.6. Insure tractor has sufficient front end weight to permit constant positive steering at all times.7. Insure tire pressures are equal and set at manufacturer’s recommended pressures.8. Traction and horsepower are the two most limiting factors effecting Super Duty Strip Till tractor operation. CAUTION NEVER STAND BETWEEN TRACTOR AND SUPER DUTY STRIP TILL WITH THE TRACTOR ENGINE RUNNING. A. Tractors EquippedWith Quick Hitches: 1. Attach quick hitch to the Super Duty Strip Till and make sure lower pin locks are secured.2. Raise the parking stand into the clamp body or remove to allow the Super Duty Strip Till into a working position.3. When disconnecting the Super Duty Strip Till adjust stands to leave the Tool Bar tilted slightly forward. This will permit easier disconnecting and reattaching.WARNING: Never Work under the Super Duty Strip Till When it is in the raised position. Always lower the unit to the ground before making any adjustments.Tractors Without Quick Hitch:1. Attach lower lift arms of the tractor to the Super Duty Strip Till utilizing appropriate pins. Standard equipment for all units is a Category III wide hitch with 1-7/16” Lower and 1-1/4” Upper Pin diameters. 2. Attach top link after connecting lower lift arms. Raise parking stands into clamps or remove. When disconnecting, place stand to leave the Super Duty Strip Till in a stable position.CAUTIONDO NOT MOVE TRACTOR WITHOUT MAKING SURE TOP HITCH IS CONNECTED TO TRACTOR.Field Use and AdjustmentsNEVER ALLOW ANYONE TO RIDE ON THIS EQUIPMENT DURING OPERATION1. Maximum operating speed 4 - 6 mph. If obstructions are present, lower operating speed to a safe level. This will help minimize damage.2. Adjust the depth by raising or lowering the depth control wheels.3. The frame must be horizontal (level) front to back when in use. Adjust by lengthening or shortening the tractor’s top link.4. Check and adjust if necessary the coulter position in relation to the tillage shank working depth. 5. Never reverse the tractor when the Super Duty Strip Till is in the ground. 6. Do not raise the Super Duty Strip Till out of the ground unless the tractor is moving forward.7. Do not make sharp turns when the Super Duty Strip Till is in the ground.8. For best results make sure to operate on matching rows. (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 13 Form # B11-1STBIGHAM BROTHERS, INC.SYMPTOM CloddyShearing boltsTrash clogging rear toolingTractor tire slippageTractor will not pull Super Duty Strip TillWear on tillage shanksNot going into groundUneven results from right to left.CAUSEOperating too shallowInsufficient pressure on rolling basketWire or foreign object on leg or footSoils too dryToo much loadRocksInsufficient spacing between shank and covering discsSoil too wet causing hairpinning of residueThird link too shortInsufficient tractionSoil too wetInsufficient horsepowerInsufficient tractionWear surfaces wornPoints dullUnit not levelTire pressures unequal or not at manufacturer’s recommended level.SOLUTIONRaise gauge wheelsIncrease spring pressure on basket armRemove wire or objectWait for moistureReduce operating depthMove shank to front slotStagger covering discs front/backLet soil dryLengthen third linkAdd weight; lock axles (if tractor is equipped)Adjust tractor’s draft controlLet soil dryLarger, heavier tractorSet tillage shanks to operate at shallower depthReplace wear surfacesReplace pointsLevel unitSet tire pressures to recommended level.TroubleshootingPage 14Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Qty. Req. Per Assy.Ref# P/N Description (* As Required)Qty. Req. Per Assy.Ref# P/N Description (* As Required)A. Wrap Around Clamp1. 602-1635Z Bolt, Pivot 1”x8-1/4“ (Gr 5) ZP 42. 624-110 Bushing, 1x1-1/8x1-1/2” (Plastic) 83. 611-1401Z Nut, Hex ZP 7/8“ 44. 689-232S Bracket, 7” Wrap Around 15. 613-1603Z Nut, Hex Nylock ZP 1” Striptill 46. 689-208 Bolt Retainer, Striptill 47. 689-234S Linkage Arm, Wrap Striptill 28. 610-0047 U-Bolt, 7/8” For 7”x7” (Gr 5) ZP 29. 616-1403Z Washer, Flat 7/8” S.A.E. Hard ZP 410. 789-200 Tail Gang,4x4" Rear-Strip Till 1B. 789-200 Tail Gang,4x4" Rear-Strip Till (Includes 11-16)11. 301-357 Clevis, Handle Retainer ZP 112. 617-103 Klik Pin, 1/4 x 1-1/2” 113. 605-0406Z Screw,Hex Washer HD.12-14X3/4" ZP 114. 606-1010Z Set Screw, Square Head 5/8”x2-1/2” ZP 615. 606-1006Z Set Screw, Square Head 5/8”x1-1/2” ZP 116. 617-008 Zerk, 1/8 NPT Threaded 117. 632-710 Insert, Plastic Plug (1.339“) 1D. Split Wrap Around Clamp27. 689-233S Bracket, 7” Split Wrap Around 228. 602-1620Z Bolt, HCS 1”x5” (Gr 5) ZP 4 Note: Four 1x5” Bolts for front part of clamp, plus two 1x8-1/4” (item #1) for rear as in other clamps and a total of 6 nuts (item #5). (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Super Duty Strip TillParts Breakdown789-212 7x7” Wrap Mount and 789-213 Split Mount Gang Bundle, Super Duty Strip Till123 4 567891011 1213141516AB171521D 27285226 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 15 Form # B11-1STBIGHAM BROTHERS, INC.Qty. Req. Per Assy.Ref# P/N Description (* As Required)Qty. Req. Per Assy.Ref# P/N Description (* As Required)2. 624-110 Bushing, 1x1-1/8x1-1/2” (Plastic) 83. 611-1401Z Nut, Hex ZP 7/8“ 46. 689-208 Bolt Retainer, Striptill 48. 610-0047 U-Bolt, 7/8” For 7”x7” (Gr 5) ZP 29. 616-1403Z Washer, Flat 7/8” S.A.E. Hard ZP 410. 789-200 Tail Gang,4x4" Rear-Strip Till 1B. 789-200 Tail Gang,4x4" Rear-Strip Till (Includes 11-16)11. 301-357 Clevis, Handle Retainer ZP 112. 617-103 Klik Pin, 1/4 x 1-1/2” 113. 605-0406Z Screw,Hex Washer HD.12-14X3/4" ZP 114. 606-1010Z Set Screw, Square Head 5/8”x2-1/2” ZP 615. 606-1006Z Set Screw, Square Head 5/8”x1-1/2” ZP 116. 617-008 Zerk, 1/8 NPT Threaded 117. 632-710 Insert, Plastic Plug (1.339“) 1C. Rear Mount Clamp19. 689-200 Mount Angle, Universal 220. 689-206 Linkage Arm 221. 686-992 Bracket, 7” Mount Support (for 7x7”) 2 686-991 Bracket 4“ Mount Support (for 4x7”) 222. 602-1640Z Bolt, HCS 1”x10” (Gr 5) ZP 1 23. 602-1638Z Bolt, HCS 1”x9-1/2” (Gr 5) ZP 224. 602-1636Z Bolt, HCS 1”x8-1/2” (Gr 5) ZP 125. 614-1606Z Nut, Hex Nylock Jam ZP 1” 426. 610-0039 U-Bolt 7/8” for 4x7“ Gr5 ZP (for 4x7”) 2 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Super Duty Strip TillParts Breakdown789-210 (4x7”), 789-211 (7x7”) Rear Mount Gang Bundle, Super Duty Strip Till1011 1213141516BC2222561920218232324392617152Page 16Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Qty. Req. Per Assy.Ref# P/N Description (* As Required)Qty. Req. Per Assy.Ref# P/N Description (* As Required)1. 627-773 Hub/Brg. Assy., Coulter Strip Till 12. 622-057 Bearing, 1-1/8" Sq W208PP5 23. 627-010 Snap Ring, Disc Bedder Housing 14. 627-772 Hub, Coulter Strip-Till 15. 610-0053 Gang Bolt, 1-1/8”x7-3/8“ USBL 16. 689-210 Spacer, Coulter Hub, Striptill 27. 660-141 Depth Band, 2x14 for 20” Blade 28. 630-012 Blade, Fluted 20“x4.5mm 4 Hole 19. 607-0805 Bolt, Flange(NF) 1/2x1-1/4” (3/4 HD) 410. 601-0806Z Bolt, HCS 1/2“x1-1/2” (Gr 2) ZP 611. 615-0800Z Washer, Lock ZP 1/2“ 612. 611-0801Z Nut, Hex ZP 1/2” (Gr 5) 613. 615-1800 Washer, Lock 1-1/8” (Plain) 114. 611-1801Z Nut, Hex ZP 1-1/8“ 115. 689-215 Stinger, Adjustable Coulter Mount 116. 689-212 Screw Jack Stud, 1”x14-3/8” 117. 602-0610Z Bolt, HCS 3/8”x2-1/2” (Gr 5) ZP 118. 613-0600Z Nut, Hex Nylock ZP 3/8” 119. 624-112 Bushing, 1x1-1/4x9/16” W/HD 120. 624-113 Washer, Nylon 2”ODx1”IDX.125” 121. 689-222 Latch, Coulter Crank 122. 689-217 Arm, Univ. Adj. Coulter Mount 223. 689-236 Bracket, Pivot Coulter Mount 124. 604-1208Z Bolt, Crg 3/4“x2” (Gr5) ZP 225. 614-1202Z Nut, Serrated Flange 3/4“ 226. 602-1230Z Bolt, HCS 3/4”x701/2” (Gr5) ZP 127. 613-1200Z Nut, Hex Nylock ZP 3/4“ 128. 604-0806Z Bolt, Crg 1/2”x1-1/2” (Gr5) ZP 429. 611-0801Z Nut, Hex ZP 1/2” (Gr 5)29. 614-0801Z Nut, Hex Serrated Flange 1/2“ 4 Optional 889-121 Scraper Kit, Adj. Coulter Striptill -30. 686-993 Scraper, Adj. Coulter Striptill 231. 604-0806Z Bolt, Carriage 1/2”x1-1/2” (Gr 5) ZP 232. 614-0801Z Nut, Hex Serrated Flange 1/2” 2Super Duty Strip TillParts Breakdown (Coulter Bundle with Depth Band)789-310 Adjustable Coulter AssemblyModel Years 2008-2011910 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.16192021181721 43566778111214131522232425252627282922313032313032 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 17 Form # B11-1STBIGHAM BROTHERS, INC.Qty. Req. Per Assy.Ref# P/N Description (* As Required)Qty. Req. Per Assy.Ref# P/N Description (* As Required)1. 627-773 Hub/Brg. Assy., Coulter Strip Till 12. 622-057 Bearing, 1-1/8" Sq W208PP5 23. 627-010 Snap Ring, Disc Bedder Housing 1 4. 627-772 Hub, Coulter Strip-Till 15. 610-0061 Axle, 1.209"X 6.25" Usbl. 16. 689-210N Spacer, Coulter Hub, Striptill 27. 660-141 Depth Band, 2x14 for 20” Blade 28. 630-012 Blade, Fluted 20“x4.5mm 4 Hole 19. 607-0805 Bolt, Flange(NF) 1/2x1-1/4” (3/4 HD) 410. 601-0806Z Bolt, HCS 1/2“x1-1/2” (Gr 2) ZP 611. 615-0800Z Washer, Lock ZP 1/2“ 612. 611-0801Z Nut, Hex ZP 1/2” (Gr 5) 6 14. 614-1800M Nut, Hex Nylock Jam 1-1/8" 115. 602-0806Z Bolt, HCS 1/2”x1-1/2“ (Gr 5) ZP 416. 614-0801Z Nut, Hex Serrated Flange 1/2” 417. 689-207R Bracket, Rigid Coulter Striptill 1 (New Style April 2011) Optional18. 889-121 Scraper Kit, Adj. Coulter Striptill -19. 686-993 Scraper, Adj. Coulter Striptill 220. 604-0806Z Bolt, Carriage 1/2”x1-1/2” (Gr 5) ZP 221. 614-0801Z Nut, Hex Serrated Flange 1/2” 2 Super Duty Strip TillParts Breakdown (Rigid Coulter Bundle with Depth Band)789-305 Rigid Coulter AssemblyModel Years 2011-CurrentBB Lubbock, TX 627-76021 345667789101112141516171918 2021 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Page 18Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Qty. Req. Per Assy.Ref# P/N Description (* As Required)Qty. Req. Per Assy.Ref# P/N Description (* As Required)1. 627-773 Hub/Brg. Assy., Coulter Strip Till 12. 622-057 Bearing, 1-1/8" Sq W208PP5 23. 627-010 Snap Ring, Disc Bedder Housing 14. 627-772 Hub, Coulter Strip-Till 15. 610-0053 Gang Bolt, 1-1/8”x7-3/8“ USBL 16. 689-210 Spacer, Coulter Hub, Striptill 27. 660-141 Depth Band, 2x14 for 20” Blade 28. 630-012 Blade, Fluted 20“x4.5mm 4 Hole 19. 607-0805 Bolt, Flange(NF) 1/2x1-1/4” (3/4 HD) 410. 601-0806Z Bolt, HCS 1/2“x1-1/2” (Gr 2) ZP 611. 615-0800Z Washer, Lock ZP 1/2“ 612. 611-0801Z Nut, Hex ZP 1/2” (Gr 5) 613. 615-1800 Washer, Lock 1-1/8” (Plain) 114. 611-1801Z Nut, Hex ZP 1-1/8“ 115. 602-0806Z Bolt, HCS 1/2”x1-1/2“ (Gr 5) ZP 416. 614-0801Z Nut, Hex Serrated Flange 1/2” 417. 689-207 Bracket, Rigid Coulter Striptill 1 Optional18. 889-121 Scraper Kit, Adj. Coulter Striptill -19. 686-993 Scraper, Adj. Coulter Striptill 220. 604-0806Z Bolt, Carriage 1/2”x1-1/2” (Gr 5) ZP 221. 614-0801Z Nut, Hex Serrated Flange 1/2” 2 Super Duty Strip TillParts Breakdown (Rigid Coulter Bundle with Depth Band)789-305 Rigid Coulter AssemblyModel Years 2008-2011BB Lubbock, TX 627-76021 34566778910111214 131516171918 2021 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC. (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 19 Form # B11-1STBIGHAM BROTHERS, INC.151514108432TravelQty. Req. Per Assy.Ref# P/N Description (* As Required)Qty. Req. Per Assy.Ref# P/N Description (* As Required)91. 627-773 Hub/Brg. Assy., Coulter Strip Till 22. 627-010 Snap Ring, Disc Bedder Housing 23. 622-057 Bearing, 1-1/8" Sq W208PP5 44. 627-772 Hub, Coulter Strip-Till 25. 310-054TL Stud, LH Row Cleaner 5.28” HD 16. 310-054T Stud, RH Row Cleaner 5.28” HD 17. 636-600 Shield, H.D. Row Cleaner 28. 636-884D Shield, H.D. Covering Disc 29. 615-1000Z Washer, Lock ZP 5/8" 210. 602-1005L Bolt, HCS 5/8"x1-1/4" LH (GR5) ZP 111. 602-1005R Bolt, HCS 5/8"x1-1/4" RH (GR5) ZP 112. 630-007L Disc, 13.5” Trash Whipper LH 113. 630-007R Disc, 13.5” Trash Whipper RH 114. 616-1605Z Washer, Flat 1” S.A.E. 215. 613-1600Z Nut, Hex Nylock ZP 1” 216. 607-0804Z Button Head SS 1/2”-20x1” ZP 217. 712-610 Bracket, LH H.D. Row Cleaner 1 (Pictured) 712-611 Bracket, RH H.D. Row Cleaner 1 Note: Both left- and right-hand gangs include left- and right-hand discs (items 12 and 13). They also both require different spindles (items 5 and 6), as well as left- and right hand spindle bolts (items 10 and 11).Super Duty Strip TillParts Breakdown (Row Cleaners)712-660 Row Cleaner Assy, Heavy Duty LH (Left Hand) 712-661 Row Cleaner Assy, Heavy Duty RH (Right Hand)BB Lubbock, TX 627-76067111213Note: Different parts on right hand side1617 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Page 20Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.1"291413161610111213863451Travel151819171"2221232024BQty. Req. Per Assy.Ref# P/N Description (* As Required)Qty. Req. Per Assy.Ref# P/N Description (* As Required)7A. 712-170 Blade/Shank/Hub 16" Conc. 3/4" LH - 712-171 Blade/Shank/Hub 16" Conc. 3/4" RH -1. 712-139 Spindle/Hub Assy., LH Cov. Disc HD 1 712-140 Spindle/Hub Assy., RH Cov. Disc HD 12. 627-773 Hub/Brg. Assy., Coulter Strip Till 13. 627-772 Hub, Coulter Strip Till 14. 622-057 Bearing, 1-1/8" Sq W208PP5 25. 627-010 Snap Ring, Disc Bedder Housing 16. 636-884D Shield, H.D. Covering Disc 17. 615-1000Z Washer, Lock ZP 5/8" 18. 602-1005L Bolt, HCS 5/8"x1-1/4" LH (GR5) ZP 1 602-1005R Bolt, HCS 5/8"x1-1/4" RH (GR5) ZP 19. 627-242LL Spindle, 1.5" Hex 4 Hole LH LB 1 627-242LR Spindle, 1.5" Hex 4 Hole RH LB 110. 636-220 Lock Plate, Adj. Cov. Disc 111. 610-1208Z Machine Bolt, Crg 3/4"x2" Gr5 112. 610-1207Z Bolt, HCS 3/4"x1-3/4" Gr5 113. 615-1200 Washer, Lock 3/4" (Plain) 214. 611-1201Z Nut, Hex ZP 3/4" 115. 607-0804Z Bolt, Button HD SS 1/2"-20X1" ZP 4 (Allen head)16. 712-135 Shank, LH 3/4x2.5x27" Covering Disc * 712-136 Shank, RH 3/4x2.5x27" Covering Disc *17. 630-028 Disc, concentric 16"x4.5mm 4 Hole 118. 630-008 Coulter, Wavy 17"x1"x4.5mm 4 Hole *19. 630-011 Coulter, Wavy 20"x1"x4.5mm 4 Hole * (20” Wavy discs optional)B. 806-402 Clamp, 4x4 For 3/4x2-1/2" Shank 120. 628-600 Body, Clamp 4" 3/4x2-1/2" Shank -21. 628-200 Cap, 4" 3/4 Bolt Holes (Cast) -22. 611-1201Z Nut, Hex ZP 3/4" -23. 601-1224Z Bolt, HCS 3/4"x6" Gr2 ZP -24. 606-1006Z Set Screw, Sq Head 5/8"x1-1/2" ZP -25. 644-0304 Tube, 4X4X.250 30" - 644-0284 Tube, 4x4x.250 28” (For Narrow Row) -(Clamps are not included with Blade/Shank/Hub Assemblies.) Note: Shank and blade assemblies are pre-set at the factory. Adjust-ments may be made by rotating the hex spindle (Ref. #9) through the lock plate (Ref. #10). Upper (flat) portion of the shank (Ref. #16) may be utilized for intermediate blade setting by flipping the shank top to bottom.Super Duty Strip TillParts Breakdown (Covering Discs)889-521, 889-521N (16” Fluted Smooth Blades)889-522, 889-522N (17” Wavy Blades) (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.A25 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 21 Form # B11-1STBIGHAM BROTHERS, INC. (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Qty. Req. Per Assy.Ref# P/N Description (* As Required)Qty. Req. Per Assy.Ref# P/N Description (* As Required)A. 806-403 Clamp, 4x4” For 1x3” Shank - 1. 628-700 Body, Clamp 4” 1x3 Shank 22. 628-400 Cap, 4” 7/8 & 1” Bolt Holes 23. 601-1424Z Bolt, HCS 7/8”x6” (Gr 2) 44. 606-1006Z Set Screw Sq Head 5/8”x1-1/2” ZP 65. 611-1401Z Nut, Hex ZP 7/8” 46. 631-324H Shank, 1x3x24“ H-5160 Heat Treated 27. 602-1011Z Bolt, HCS 5/8”x2-3/4 (Gr 5) ZP 28. 602-0811Z Bolt, HCS 1/2”x2-3/4” (Gr 5) ZP 29. 611-1001Z Nut, Hex ZP 5/8” 210. 611-0801Z Nut, Hex ZP 1/2” (Gr 5) 211. 616-1000Z Washer, Flat ZP 5/8” 212. 615-0800Z Washer, Lock ZP 1/2” 2B. 712-450 Gang Assy., LH Disc Hiller 1x3” (Pictured) 712-451 Gang Assy., RH Disc Hiller (Not Pictured)13. 610-0055 Gang Bolt, 1-1/8”x 6-5/8” USBL 214. 636-854 Spring Washer, 7” w/1-1/8” Sqr. Hole 215. 630-020D Disc, Conc. 20”x5mm 1.125 Sqr Fluted 216. 628-019R Front Plate, Covering Disc 217. 615-1800 Washer, Lock 1-1/8” (Plain) 218. 611-1801Z Nut, Hex ZP 1-1/8” 219. 710-727F Housing, 2 Bearing Assy. LH (Fab.) 1 710-728F Housing, 2 Bearing Assy. RH (Fab.) 120. 622-057 Bearing, 1-1/8” Sq W208PP5 421. 627-010 Snap Ring, Disc Bedder Housing 422. 628-010F Housing, LH Disc Bedder Top Mt. (Fab.) 1 628-011F Housing, RH Disc Bedder Top Mt. (Fab.) 123. 310-940 Head Plate 5/16x2RD x 1-1/8 Sqr. 224. 615-1805Z Washer, 1-1/8” Gang Bolt ZP 225. 644-0304 Tube, 4x4x.250 Cut 30” 1Super Duty Strip TillParts Breakdown (Covering Discs)889-520 Dics Bundle, 20" Fluted S.D.S.T.889-520N Narrow RowA41325B119 76812101314 1516212022 20211917 18232425Page 22Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC. (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Qty. Req. Per Assy.Ref# P/N Description (* As Required)Qty. Req. Per Assy.Ref# P/N Description (* As Required)A. 709-024 Shank, Subsoil 1x4x35.5” - 1. 116-0200 Pipe, 1/*” Sch 40 18” 12. 617-052 Pin, Roll 3/8”x2” 13. 709-023 Shin, Chrome Barb 1-1/8”x8.25” 14. 709-014 Point, Ripper Chromium Carbide 15. 380-712 Shank, 1x4x36” w/Holes 1B. 709-028 Shank Assy., Trip Subsoil 1x4x36” - (Requires 1-4 above)6. 602-0811Z Bolt, HCS 1/2”x2-3/4 (Gr 5) ZP 17. 601-0811Z Bolt, HCS 1/2”x2-3/4 (Gr 2) ZP 18. 613-0800Z Nut, Hex Nylock ZP 1/2” 29. 709-027 Shank, Trip Subsoil (Bottom) 110. 709-026 Shank, Trip Subsoil (Top) 1C. 709-020L Shank, Subsoil 1x3x34” LH w/Tube - 709-020R Shank, Subsoil 1x3x34” RH w/Tube - (Pictured)11. 709-007L Shank, Subsoil 1x3x34” LH w/Point 1 709-007R Shank, Subsoil 1x3x34” RH w/Point 112. 615-052 Pin, Roll 3/8”x2” 113. 709-014 Point, Ripper Chromium Carbide ER 114. 116-0200 Pipe, 1/8” Sch 40 18” 1D. 789-292 Fertilizer Shank Assy., 1x3” Striptill -15. 705-292 Shank, Fertilizer Striptill 1x3x20” 116. 602-0811Z Bolt, HCS 1/2”x2-3/4” (Gr 5) ZP 217. 616-0800Z Washer, Flat ZP 1/2” 218. 615-0800Z Washer, Lock ZP 1/2” 219. 611-0801Z Nut, Hex ZP (Gr 5) 220. 630-712 Knife, HD Fertilizer Mole Point/Carb Ins 1Super Duty Strip TillParts Breakdown (Ripper and Tillage Shanks)709-024 Ripper Shank, 709-028 Ripper Shank (Trip)709-020L,709-020R Subsoil Shank, 789-292 Fertilizer Shank5324A19324B17681011121314C D151617181920 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 23 Form # B11-1STBIGHAM BROTHERS, INC.Qty. Req. Per Assy.Ref# P/N Description (* As Required)Qty. Req. Per Assy.Ref# P/N Description (* As Required)A. 785-600 Yoke & 17” Basket Assy. 11. 685-320 Yoke Weldment, 17” Bed Cond. 12. 685-200 Basket Weldment, 17” Wide/16” Dia. 13. 622-084 Bearing Assy. 1-1/2” FL 24. 622-087 Bearing, 1-1/2" Triple Lip -5. 622-091 Housing, 2-Hole 1-1/2" -6. 602-0808Z Bolt, HCS 1/2“x2” (Gr 5) 47. 615-0800Z Washer, Lock ZP 1/2” 48. 611-0801Z Nut, Hex ZP 1/2“ (Gr 5) 49. 685-226 Arm Weldment 2x3, Short Striptill 110. 685-234 Threaded Rod w/Bushing, Roller 111. 614-1601Z Nut, Hex Jam 1” ZP 412. 616-1605Z Washer, Flat 1” S.A.E. 113. 633-025 Spring, Prepmaster Covering Disc 114. 616-1601 Washer, Flat 1” SAE PFC9 (2” OD) 215. 611-1201Z Nut, Hex ZP 3/4” 416. 610-0037 U-Bolt, 3/4“ for 4”x2” (Gr 5) ZP 217. 602-1220Z Bolt, HCS 3/4”x5” (Gr 5) ZP 218. 613-1200Z Nut, Hex Nylock ZP 3/4” 2 Super Duty Strip TillParts Breakdown (Basket Bundle)889-208 Basket Bundle, 17” S.D.S.T10111314119A287614316155181217 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Page 24Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Qty. Req. Per Assy.Ref# P/N Description (* As Required)Qty. Req. Per Assy.Ref# P/N Description (* As Required)A. 785-602 Yoke & 16” Roller Assy. 11. 685-320 Yoke Weldment, 17” Bed Cond. 12. 685-205 Pipe Roller, 12 3/4” OD x 15-3/4” 13. 622-084 Bearing Assy. 1-1/2” FL 24. 622-087 Bearing, 1-1/2” Triple Lip -5. 622-091 Housing, 2-Hole 1-1/2” -6. 602-0808Z Bolt, HCS 1/2“x2” (Gr 5) 47. 615-0800Z Washer, Lock ZP 1/2” 48. 611-0801Z Nut, Hex ZP 1/2” (Gr 5) 49. 685-226 Arm Weldment 2x3, Short Striptill 110. 685-234 Threaded Rod w/Bushing, Roller 111. 614-1601Z Nut, Hex Jam 1” ZP 412. 616-1605Z Washer, Flat 1” S.A.E. 113. 633-025 Spring, Prepmaster Covering Disc 114. 616-1601 Washer, Flat 1” SAE PFC9 (2” OD) 215. 611-1201Z Nut, Hex ZP 3/4” 416. 610-0037 U-Bolt, 3/4” for 4”x2” (Gr 5) ZP 217. 602-1220Z Bolt, HCS 3/4”x5” (Gr 5) ZP 218. 613-1200Z Nut, Hex Nylock ZP 3/4” 2B. 686-984 Scraper Assy., 17” Smooth Roller -19. 686-983 Bracket, Universal (Scraper Assy.) 220. 686-984 Scraper Blade, 9/32”x4”x18-1/2” 121. 686-985 Mount Plate, Adj. Chopper Shield 222. 636-869 Bushing, 27/32”x35/64”x1/2” 223. 602-1008Z Bolt, HCS 5/8”x2” (Gr 5) ZP 224. 603-0705Z Bolt, Whizlock 7/16”x1-1/2” (Gr 5) 425. 602-0606Z Bolt, HCS 3/8”x1-1/2” (Gr 5) 226. 611-1001Z Nut, Hex ZP 5/8” 227. 614-0701Z Nut, Hex Serrated Flange 7/16” 428. 616-0600Z Washer, Flat ZP 3/8” 229. 615-1000Z Washer, Lock ZP 5/8” 230. 611-0601Z Nut, Hex ZP 3/8” 231. 615-0600Z Washer, Lock ZP 3/8” 232. 602-0811Z Bolt, HCS 1/2”x2-3/4” (Gr 5) ZP 2 Super Duty Strip TillParts Breakdown (Roller Bundle)889-602 Roller Bundle, 16" S.D.S.T.10111314119A2876143161552629231924202725282219213130B 32181217 (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC. (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 Page 25 Form # B11-1STBIGHAM BROTHERS, INC.RECOMMENDED ASSEMBLY TORQUES FOR HEXAGON HEAD CAP SCREWSBased on dry assembly. Variables such as lubrication, plating etc. may reduce the values listed below as much as 20%, and must be taken into consideration. Bright Cap Screws Heat Treated 1038 Hexagon 1018 Grade 2 Head Cap Screws, SAE Grade 5 Cap Yield Recommended Yield Tensile Recommended Screw Strength Torque (Ft. Lbs.) Strength Strength Torque (Ft. Lbs.) Diam. PSI Min. UNC UNF PSI Min. PSI Min. UNC UNF 1/4” 58,000 6 7 90,000 120,000 11 13 5/16” 58,000 13 14 90,000 120,000 21 23 3/8” 58,000 23 26 90,000 120,000 38 40 7/16” 58,000 37 41 90,000 120,000 55 60 1/2” 58,000 57 64 90,000 120,000 85 95 5/8” 55,000 111 128 90,000 120,000 175 210 3/4” 55,000 200 223 90,000 120,000 300 330 7/8” 55,000 315 340 81,000 115,000 450 490 1” 50,000 400 460 81,000 115,000 680 715 1-1/8” 50,000 570 635 77,000 105,000 885 990General Formula for calculating Torque is as follows:Torque in Inch Lbs. = .2 x Nominal Diameter of Screw x Load in Lbs., where Load = 80% of Yield Strength, expressed in Lbs., not pounds per square inch.The tension induced in a cap screw may be checked by measuring overall length before torquing and then under torque load. The screw stretches .001” per inch of screw length for each 30,000# P.S.I. induced tension. Applies only to loads below the yield point.GRADE 2No MarksGRADE 53 Lines on Bolt HeadPage 26Form # B11-1ST (806) 745-0384 705 E. Slaton Rd. P.O. Box 3338 Lubbock, TX 79452 BIGHAM BROTHERS, INC.Notes: