Part Lists Great Plains Manufacturing, Inc. 1 Contact Drive Wheel Update NTA907HD and NTA3007HD When you see this symbol, the subsequent instructions and warnings are serious - follow without exception. Your life and the lives of others depend on it! General Information These instructions explain how to update the contact drive wheel on an NTA907/3007HD. The kit improves the reliability of the drive system in challenging field conditions. One kit updates one air drill. These instructions apply to an installation of: Kit Kit Description 166-366A NTA 907 CONTACT DR WHL UPDATE Update Manual This kit is not required for drills manufactured in 2011 or later. Related Documents Have the following manuals available for implement operations and parts identification: 166-207M Operator Manual 166-207P Parts Manual Notations and Conventions F L U D R B Left and Right are facing in the direction of machine travel. An orientation rose in the line art illustrations shows the directions of Left, Right, Front, Back, Up, Down. Call-Outs 1 to 9 Single-digit callouts identify components in the currently referenced Figure. These numbers may be reused for different items from page to page. 11 to 19 Two-digit callouts in the range 11 to 19 reference new parts from the lists on page 13page 15. 51 to 71 Two-digit callouts in the range 51 to 71 reference existing parts from the list on page 15. Figure 1 Kit Components 32009 Copyright 2011 Printed 2012-02-21 Part Lists 166-367M
2 Great Plains Manufacturing, Inc. Front Page Part Lists Contact Drive Update Pre-Assembly Preparation Tools Required cutting torch wire or rod welder, and welding safety equipment, including a fire extinguisher ground (earthing) rod, cable and clamp (or access to suitable electrical safety ground reference conductor) suitable tractor for raising and unfolding air drill Great Plains 821-001C spray paint, or green exterior enamel close to Pantone 356C, DuPont 262 or PPG 43817 basic hand tools Work Location 1. Move the air drill to a location with: flat, non-combustible surface free of flammable materials adequate illumination clear surface beneath for recovery of any falling or dropped parts Burn and Fire Hazards: This update requires cutting and welding thick metal. Perform the work clear of flammable materials. Wear suitable protective equipment. Allow hot parts to cool before continuing work. Crushing and Sharp Object Hazards: Be careful working near openers. Discs and other parts may be sharp. Prepare Air Drill 2. Raise implement with tractor. 3. Unfold implement. 4. Install lift and transport locks. 5. Disconnect all harnesses to tractor. 6. Connect a grounding cable from the center section main frame to earth ground Equipment Damage Risk: Disconnect harnesses and ground frame before welding. Connected harnesses or ungrounded frame during welding can result in permanent damage to seed monitor components. 166-367M Front Page Part Lists 02/21/2012
Dismount Contact Drive Front Page Part Lists Great Plains Manufacturing, Inc. 3 Dismount Contact Drive Start with the right side of the implement. Dismount Input Shaft Refer to Figure 2 7. Relax the idler on the contact drive chain 1. Lift the chain off 27T driving sprocket 67. 8. At the front shaft, remove and save two sets: 65 805-180C PIN ROLL 1/4 X 1 1/2 LG PLT 69 814-134C TIRE/WHEEL ASSY 13/5 X 6 65 69 64 1 9. Remove and save one 27T sprocket: 67 808-311C SPKT 50C27 X 7/8 HEX BORE 10. Remove, record and save all: 64 804-061C WASHER MACH 1.50 X 1.00 X 18GA Record the count here: Input Shaft Washer 64 Count Right, Outside Right, Inside 1 64 67 69 65 Left, Outside Left, Inside Figure 2 Contact Drive Input Shaft 32066 11. Remove and save the shaft: 57 266-003D SHAFT 7/8 HEX 32.75 Disconnect Hold-Down Spring Refer to Figure 3 12. At each of the hold-down springs 66, remove and save one set: 61 803-020C NUT HEX 1/2-13 PLT 63 804-015C WASHER LOCK SPRING 1/2 PLT 58 266-250D TUBE RND 1OD X 7/32W X 1.44 L 59 802-226C HHCS 1/2-13X2 3/4 GR5 13. Leave the spring 66 in place, but tie it up out of the way. The lower lug (not shown in the figure) is torch cut at step 31 on page 5. 63 61 66 58 59 Figure 3 Disconnect Hold-Down Spring 32066 02/21/2012 Front Page Part Lists 166-367M
4 Great Plains Manufacturing, Inc. Front Page Part Lists Contact Drive Update Dismount Output Sprockets Refer to Figure 4 14. Relax the idler on the contact drive output chain 2. Lift the 144P chain off the 30T sprocket 68. 56 15. Remove and save 117P chain: 51 136-259D CHAIN RL #50 117 PITCHES 16. At the sprocket end of the shaft 56, drive out the roll pin 65. This pin is not re-used. 17. Remove and save the first of two sprockets: 68 808-319C SPKT 50C30 X 7/8 HEX BORE 18. Remove and save any spacer washers (not shown): 64 804-061C WASHER MACH 1.50 X 1.00 X 18GA in between the sprockets and the bearing. 51 65 68 68 2 Record the count here: Output Shaft Washer 64 Count Figure 4 Existing Drive Shaft 32066 Right Left 19. Remove and save the second of two 30T sprockets: 68 808-319C SPKT 50C30 X 7/8 HEX BORE Remove Pivots and Arms Refer to Figure 5 20. At the pivot shaft 56, drive all inside roll pins 65. Optionally remove the outside pin as well. These pins are not re-used. 21. Remove the shaft 56. It is not re-used. 22. Remove six sets of lock nuts 62 and round head shank neck bolts ( 60 ), four flangettes 71 and two spherical bearings 70. These are not re-used. The bearings in the drive arms remain installed. 23. Remove and save one of: 54 166-201H CONTACT DRIVE WELDMENT RIGHT 55 166-205H CONTACT DRIVE WELDMENT LEFT 24. Repeat step 7 through step 23 for the left side. 65 70 65 62 71 71 60 Figure 5 Existing Pivot Bearings at Frame 54 56 32066 166-367M Front Page Part Lists 02/21/2012
Cut Clearances Front Page Part Lists Great Plains Manufacturing, Inc. 5 Cut Clearances Elongate Input Shaft Slot The curved slots (4 places) for the contact drive input shaft need to be elongated by 21.0 mm (0.83 in). Refer to Figure 6 and Figure 21 on page 12 25. Make two copies of page 12 at 1:1 (100%) size (or print at 100% size from the PDF of this manual), for use as marking templates. A ruler image is included on the page to verify that the copy is 1:1 scale. 26. Mark the elongation boundary (the dashed line) on the tongue mount plates. 27. Use a torch, or similar tool capable of cutting thick steel, to elongate the four curved slots 3. Check the final edge against the template. Notch Spring Brackets The parallel arm 53 spring brackets 4 (where the bottom of the hold-down springs attach) need to have a notch cut in them (8 places) to allow spring clearance at the limits of the arm movement now allowed by the longer curved slots. Refer to Figure 7 and Figure 20 on page 11 28. Make four copies of page 11 at 1:1 (100%) size (or print at 100% size from the PDF of this manual), for use as marking templates. A ruler image is included on the page to verify that the copy is 1:1 scale. 29. Mark the notch boundary (the dashed line) on the tongue mount plates. 30. Protect neighboring machine parts from being overheated. 31. Use a torch, or similar tool capable of cutting thick steel, to cut the notches. Check the final edges against the template. Figure 6 Input Shaft Slot 3 4 Figure 7 Spring Brackets with Notches 53 29379 29434 02/21/2012 Front Page Part Lists 166-367M
6 Great Plains Manufacturing, Inc. Front Page Part Lists Contact Drive Update Install Welded Parts Install Down Stops Lugs (4 places) are added to the tongue mount plates to provide limit stops. This protects against machine damage in the event of low tire pressures. Refer to Figure 8, Figure 9, Figure 22 (on page 13) and Figure 23 (on page 14) 32. Remove paint from the area to be welded. 33. Make two copies each of page 13 and page 14 (4 total) at 1:1 (100%) size (or print at 100% size from the PDF of this manual), for use as marking templates. A ruler image is included on the pages to verify that the copy is 1:1 scale. 34. Mark the location for each lug. Center-punching the corners suffices. 35. Select four new: 13 266-294D CONTACT WHL DOWN STOP Note: The lugs are symmetrical. The flat sides are identical. 36. Position each lug with one flat side to frame, the other flat side up, curved side out, and canted 17 degrees forward. Tack weld. Re-check dimensions or against template. 37. Allow tack welds to cool. Final weld all around with a 9 mm ( 3 8 in) weld fillet. Figure 8 Down Stop Installed 13 32075 17 13 77.6 mm 2.1 mm 2.1 mm (0.08 in) from bottom rear corner of lug to vertical rear edge of tongue mount plate. 77.6 mm (3.06 in) from bottom front corner of lug to top edge of parallel arm reinforcement plate below. Figure 9 Down Stop Placement Dimensions 32076 166-367M Front Page Part Lists 02/21/2012
Install Welded Parts Front Page Part Lists Great Plains Manufacturing, Inc. 7 Install Pivot Tubes Start with the right side of the implement. Refer to Figure 10, Figure 11and Figure 12 38. Remove paint from the frame around the former bearing mount holes. 39. Select one new: 14 266-295D CONTACT WHL PVT TUBE Insert the tube through the frame holes where the previous pivot shaft was removed. 40. Adjust the tube position for a reveal of 81.0 mm (3.10 in) on the outside of the frame (left reveal on left side; right reveal on right side). Tack weld the tube. Recheck the reveal. 41. At the outside face of the outside frame plate, and the inside face of the inside frame plate, weld the contact circumference of the tube/frame joints with a 9mm ( 3 8 in) weld fillet 4. Note: It is not necessary to fill the former bolt holes 4 during welding. 42. Repeat step 38 through step 41 for the left side. 43. Wait for the welds to cool. 44. At all welds, remove welding residue and any charred paint. Apply matching green paint. 45. Allow paint to dry. 14 12 18 Figure 10 Pivot Tube and Bearings 12 16 15 14 29379 81.0 mm (3.19 in).epsi 100% Figure 11 Pivot Tube Placement 32067 14 6 5 Figure 12 Pivot Tube Weld 32067 02/21/2012 Front Page Part Lists 166-367M
8 Great Plains Manufacturing, Inc. Front Page Part Lists Contact Drive Update Re-install Contact Drive Arms Start with the right side of the implement. Two workers may be needed due to parts that are held in alignment for shaft insertion. Install New Pivot Shaft Refer to Figure 14 46. Select two new: 12 188-006V BEARING.880 HEX BORE 205DD Insert and seat one bearing 12 at each of the pivot tubes 14. The orientation groove 7 is to the inside of the tube 14. The raised face 8 of the inner race is to the outside of the tube. 47. Select one new: 15 266-296D CONTACT WHEEL PIVOT SHAFT 48. Select the saved: 54 166-201H CONTACT DRIVE WELDMENT RIGHT 55 166-205H CONTACT DRIVE WELDMENT LEFT depending on the side being worked on. 49. Select one each new: 16 402-266D 7/8 HEX SHAFT SPACER TB X 9 Note: Make sure that the arms are above the new down stops (not shown) before the next step. 50. Hold the spacer tube 16 against the inside face of the inside arm bearing 70. Bring the existing arm bearings 70 into alignment with the new bearings 12. From the inside, insert the shaft 15 through the existing bearing, spacer tube and both pivot tube bearings 12. 51. Select one new: 17 804-061C WASHER MACH 1.50 X 1.00 X 1 Slide this washer between the outside pivot tube bearing 12 and the outside arm bearing 70, Slide the shaft 15 through the washer 17 and the outside arm bearing 70. 52. Select the number of saved: 64 804-061C WASHER MACH 1.50 X 1.00 X 18GA per the Output Shaft table (page 4) for the side of the implement being worked on. Place these on the inside end of the shaft. 53. Select two saved 30T sprockets: 68 808-319C SPKT 50C30 X 7/8 HEX BORE Place them on the inside end of the shaft 15 54. Select two: 18 805-180C PIN ROLL 1/4 X 1 1/2 LG PLT Drive the pins through the ends of the shaft. 55. Repeat step 46 through step 54 for the left side. 14 70 14 Figure 13 Bearing Orientation 18 17 70 64 12 68 7 12 Figure 14 Pivot Tube and Bearings 16 15 54 12 8 32104 68 29379 166-367M Front Page Part Lists 02/21/2012
Re-install Contact Drive Arms Front Page Part Lists Great Plains Manufacturing, Inc. 9 Re-Mount Drive Wheels Start with the right side of the implement. Refer to Figure 15 56. Select one saved: 57 266-003D SHAFT 7/8 HEX 32.75 Insert the shaft through the forward bearings 70 on the arms, and the curved slots in the tongue mount plates. 65 57. Select the number of saved: 64 804-061C WASHER MACH 1.50 X 1.00 X 18GA per the Input Shaft table (page 3) for the side of the implement being worked on. Place these on their respective ends of the shaft. 58. Select one saved: 67 808-311C SPKT 50C27 X 7/8 HEX BORE Add it to the inside end of the shaft. 59. Select a saved 117P chain: 51 136-259D CHAIN RL #50 117 PITCHES Route the chain 51 over the sprocket 67. 60. Select two sets saved: 69 814-134C TIRE/WHEEL ASSY 13/5 X 6 65 805-180C PIN ROLL 1/4 X 1 1/2 LG PLT Add one wheel to each end of the shaft. Secure with roll pins. 69 57 64 67 51 70 Figure 15 Re-Install Drive Wheels 69 65 29379 Re-Install Chains Refer to Figure 16 61. Route contact drive chain 51 through idlers 1 and over driven sprocket 68 (closest to contact drive arm). Engage idlers 1. 62. Route contact drive output chain 52 over driving sprocket 68 (furthest from contact drive arm). Engage idlers 2. 1 68 68 2 52 51 Figure 16 Re-Install Chains 29379 02/21/2012 Front Page Part Lists 166-367M
10 Great Plains Manufacturing, Inc. Front Page Part Lists Contact Drive Update Re-Connect Springs Refer to Figure 17 63. Check spring rod length. Unless you have developed a customer setting for your conditions, verify that the spring is adjusted to factory default length. 6.7 cm (2.63 in) 27.3 cm (10.75 in) with spring relaxed Figure 17 Hold-Down Spring Length 32080 Refer to Figure 18 and Figure 19 64. Select one set saved: 59 58 63 61 802-226C HHCS 1/2-13X2 3/4 GR5 266-250D TUBE RND 1OD X 7/32W X 1.44 L 804-015C WASHER LOCK SPRING 1/2 PLT 803-020C NUT HEX 1/2-13 PLT 65. Insert a tube 58 into the lower hook of a hold-down spring. Align the hold-down spring 66 with the lower/ forward hole of the notched bracket 4. Secure with bolt 59, lock washer 63 and nut 61. 66. Repeat step 63 for the other spring on this side. 67. Repeat step 46 through step 66 for the left side of the implement. 63 61 66 58 59 Figure 18 Re-connect Hold-Down Spring 32066 66 53 4 59 Figure 19 Notched Hold-Down 32079 166-367M Front Page Part Lists 02/21/2012
Appendix Front Page Part Lists Great Plains Manufacturing, Inc. 11 Appendix Notch Cutting Template New Edge Existing Edge Existing Edge New Edge Figure 20: Notching Template 32072 02/21/2012 Front Page Part Lists 166-367M
12 Great Plains Manufacturing, Inc. Front Page Part Lists Contact Drive Update Plate Cutting Template Existing Bottom New Bottom 21mm (0.83 in) Figure 21: Plate Cutting Template 32071 166-367M Front Page Part Lists 02/21/2012
Appendix Front Page Part Lists Great Plains Manufacturing, Inc. 13 Stop Placement Template LH Figure 22: Stop Placement Template - Left Hand 32073 02/21/2012 Front Page Part Lists 166-367M
14 Great Plains Manufacturing, Inc. Front Page Part Lists Contact Drive Update Stop Placement Template - RH Figure 23: Stop Placement Template - Right Hand 32073 166-367M Front Page Part Lists 02/21/2012
Appendix Front Page Part Lists Great Plains Manufacturing, Inc. 15 Part Lists New Parts The part call-out numbers in this list match all Figures in these installation instructions. Part descriptions match those in your updated Parts Manual. 166-366A Kit Contents Quantities are units ( ea ). Callout Quantity Part Number Part Description 11 1 166-367M MANUAL NTA 907 CONT DR UPDA 12 4 188-006V BEARING.880 HEX BORE 205DD 13 4 266-294D CONTACT WHL DOWN STOP 14 2 266-295D CONTACT WHL PVT TUBE 15 2 266-296D CONTACT WHEEL PIVOT SHAFT 16 2 402-266D 7/8 HEX SHAFT SPACER TB X 9 17 2 804-061C WASHER MACH 1.50 X 1.00 X 1 18 4 805-180C PIN ROLL 1/4 X 1 1/2 LG PLT Other Parts Callout Quantity Part Number Part Description 19 1 821-001C PAINT GP GREEN SPRAY CAN Existing Parts Affected The following existing parts are involved in the kit installation. The Disposition column indicates whether the part is left in place, moved or not re-used. The part call-out numbers in the list matches all Figures in the installation instructions. The descriptions match those in your air drill Parts manual. Callout Qty Part No. Part Description Part Disposition 51 2 136-259D CHAIN RL #50 117 PITCHES Removed and re-installed. 52 2 136-260D CHAIN RL #50 144 PITCHES Removed and re-installed. 53 2 166-196H ARM PARALLEL W/ SPNG BRKT WELD Modified in place. 54 1 166-201H CONTACT DRIVE WELDMENT RIGHT Removed and re-installed. 55 1 166-205H CONTACT DRIVE WELDMENT LEFT Removed and re-installed. 56 2 166-953D HEX SHAFT 7/8X20.56 LONG Removed. Not re-used. 57 2 266-003D SHAFT 7/8 HEX 32.75 Removed and re-installed. 58 4 266-250D TUBE RND 1OD X 7/32W X 1.44 L Removed and re-installed. 59 4 802-226C HHCS 1/2-13X2 3/4 GR5 Removed and re-installed. 60 6 802-282C RHSNB 5/16-18X1 GR5 Removed and re-installed. 61 4 803-020C NUT HEX 1/2-13 PLT Removed and re-installed. 62 12 803-177C NUT HEX FLG TP LK 5/16-18ZNYCR Removed and re-installed. 63 2 804-015C WASHER LOCK SPRING 1/2 PLT Removed and re-installed. 64 4-8 804-061C WASHER MACH 1.50 X 1.00 X 18GA Removed and re-installed. 65 8 805-180C PIN ROLL 1/4 X 1 1/2 LG PLT Removed. Not re-used. 66 4 807-055C SPRING HOLD DOWN HD COULTER Disconnected and re-connected. 67 2 808-311C SPKT 50C27 X 7/8 HEX BORE Removed and re-installed. 68 4 808-319C SPKT 50C30 X 7/8 HEX BORE Removed and re-installed. 69 4 814-134C TIRE/WHEEL ASSY 13/5 X 6 Removed and re-installed. 70 4 822-119C BRG 7/8HEXX2.05OD SPH Removed and re-installed. 71 8 822-175C FLANGETTE 52 3-BOLT PLT Removed and re-installed. 02/21/2012 Front Page Part Lists 166-367M
16 Great Plains Manufacturing, Inc. Front Page Part Lists Contact Drive Update Abbreviations #50 Number 50 chain link OD Outside Diameter ASSY Assembly PLT Plated BRG Bearing PVT Pivot BRKT Bracket RHSNB Round Head Shank Neck Bolt DR Drive RL Roller FLG Flanged SPH Spherical GA Gauge SPKT Sprocket GP Great Plains TB Tube GR5 Grade 5 TP LK Top Lock HD Heavy Duty UPDA Update HEX Hexagonal W Width HHCS Hex Head Cap Screw W/ with L, LG Long WHL Wheel MACH Machined X By NTA No-Till Air (drill) ZNYCR Zinc Chromate Great Plains Manufacturing, Inc. Corporate Office P.O. Box 5060 Salina, Kansas 67402-5060 USA 166-367M Front Page Part Lists 02/21/2012