Great Plains 3P605NT User Manual

Great Plains Mfg., Inc.

Installation Instructions	1

Native Grass Rate Reduction Kit

Great Plains 3-Point No-Till Drills

Used with:
•	605NT and 3P605NT drills	Note: The drill must have Native Grass capability,
• 606NT and 3P606NT drills		Series I or Series II.
•	3P806NT and 3P1006NT drills

General Information

These instructions explain Native Grass Rate Reduction Kit installation. This feature supports lower Native Grass rates than are possible with the standard drill. Each kit converts an entire drill.

These instructions apply to:

Kit	Product Description

202-580A Native Grass Rate Reduction Kit

Tools Required

•Basic hand tools, including snap ring pliers

•Chain oil

Before You Start

Refer to Figure 1

Remove all contents of the kit case (the case is used to receive parts removed from the drill).

1. Inventory the new parts per “Parts List” on page 7.

Refer to the drill Operator Manual for these steps:

2.Hitch the drill to a suitable tractor.

3.Move the drill to a dry well-lighted location suitable for disassembly.

4.Lower the drill.

5.Disconnect hydraulic and electrical power to the drill.

Note: Whenever mounting a chain, make sure the clip at the removable link is oriented to minimize snags.

Install clip with open end facing away from direction of chain travel (often shown by arrows in the chain routing diagrams of the Operator Manual).

Figure 1

28377

Kit Storage Case

Notations and Conventions		U
“Left” and “Right” are facing in the
	R		B
direction of machine travel. An orienta-
tion rose in the line art illustrations	F		L
shows the directions of: Up, Back, Left,
		D
Down, Front, Right.

1 to 9 callouts identify components in the currently referenced Figure or Figures. These numbers may be re-used from page to page.

12 to 21 document-wide callouts reference existing parts exchanged or temporarily removed. The descriptions match those in a current drill Parts Manual.

51 to 55 document-wide callouts reference new parts from the list on page 7. The descriptions match those on the cartons, bags or item tags, as well the current Parts Manual.

©Copyright 2008

Printed 08/25/2008

202-583M

Great Plains Mfg., Inc.

2 Native Grass Rate Reduction Kit

Installation
Remove Gearbox Cover			16	17
Native Grass gearbox location:
605NT		Drill left (main gearbox)	18	15
3P605NT Drill left (main gearbox)
3P806NT Drill left (main gearbox)				12
3P1006NT Drill right (dedicated NG gearbox)			15
Refer to Figure 2 (depicting a 117-360D cover)
6. At the Native Grass gearbox,
remove and save one set:
16	802-300C HHCS 1/4-28X3/8 GR5
17	804-006C WASHER LOCK SPRING 1/4 PLT				U
18	804-007C WASHER FLAT 1/4 SAE PLT
				R	B
12	120-237D GEARBOX SHIFT HANDLE		11
7. Remove and save two:				F	L
15	801-076C SCR SELF TAPPING 3/8X1
					D
that attach the box cover 11 to the gearbox.

8. Remove and save the cover, one of:		Figure 2	25161
		Remove Gearbox Cover
11	117-360D CONVENTIONAL GEARBOX COVER
11	151-157D NT GEARBOX COVER

Exchange Sprockets

Part locations are slightly different for 6-ft, 8-ft and 10-ft drills. Each is covered separately. Skip to the page for your drill:

Page	Drill Model

605NT below (step 9, page 3) 3P605NT below (step 9, page 3) 3P806NT step 9, page 4 3P1006NT step 9, page 5

202-583M

08/25/2008

Great Plains Mfg., Inc.
					Installation Instructions		3
Exchange 6ft (605NT or 3P605NT) Sprockets
On 6-foot models, the Native Grass drive shares the sin-				U	21 53
gle Drive Type gearbox, and uses the left rear output
shaft. The right rear shaft is Main Seed box.			R		B	14
Remove 6ft Gearbox Output Sprocket			F		L	20
Refer to Figure 3				D
9.	Loosen the bolt and relax idler 1 .
10. Remove the existing 45-pitch chain 2 from both the
	existing left rear gearbox output sprocket:
	21 808-271C SPKT 40B16 X 36T SPLINE BORE
	and from the Native Grass jackshaft input sprocket:				2
	20 808-170C SPKT 40B17 X 3/4BORE W/KW&SS
	The chain may be left on the idler 1 .
11. Remove and save the snap ring from sprocket 21 :					1
	14 800-141C SNAP RING EXT F/PEERLESS G.B.
	This snap ring is reused during the installation.
12. Remove and save sprocket 21 . Store it in the kit					Figure 3	25162
	case for possible future use.
					6-Foot Gearbox Output Sprocket
Install New 6ft Output Sprocket
13. Select one new:						13
	53 808-160C SPKT 40B12 X 36T SPLINE BORE			U
	Place this sprocket on the gearbox output shaft		R		B	20 52
	where sprocket 21 was just removed at step 12.
14. Select one saved:			F	D	L
	14 800-141C SNAP RING EXT F/PEERLESS G.B.
	Secure sprocket 53 on the shaft with the snap ring
	14 .					3
Remove 6ft NG Jackshaft Input Sprocket
The Native Grass jackshaft input 20 and output 3		ends
have otherwise identical 17T keyway sprockets. The
input sprocket 20 is to the right, closer to the gearbox.
Do not remove the output sprocket 3 .					Figure 4
Note: For sufficient clearance, you may need to loosen						25162
					6-Foot NG Jackshaft Input Sprocket
	other sprocket or bearing collar set screws, and
	temporarily slide the jackshaft to the left.

Refer to Figure 4

15.Loosen one or two set screws in the 17T jackshaft input sprocket:

20808-170C SPKT 40B17 X 3/4BORE W/KW&SS

16.Remove and save the key:

13168-127D 3/16 X 1 KEY

The key is re-used during this installation.

17.Remove sprocket 20 . Store the sprocket in the kit case for possible future use.

Install New 6ft NG Jackshaft Input Sprocket

18. Select one new:

19. Select one saved:

13 168-127D 3/16 X 1 KEY

Insert it in the sprocket and shaft keyways.

If the shaft was moved, slide it back to the right.

20.Secure all set screws.

21.Re-mount 45-pitch chain 2 around new sprockets 52 , 53 and idler 1 .

22.Adjust chain slack to 1 4in (6mm).

23.Skip to “Closeout”, step 23, page 6.

52 808-100C SPKT 40B22 3/4B W/K.W. &SS Place the sprocket on the jackshaft where sprocket 20 was just removed at step 17.

08/25/2008

202-583M