GREAT PLAINS 8321DV Leitfaden

FIELDADJUSTMENTGUIDE

Document #TLUS200C-0001A

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Document # TLUS200C-0001A

Tillage

Disc-O-Vator

Proper servicing and adjustment is key to the long life of all farm equipment. With careful and systematic

inspection of equipment, costly maintenance, time and repair can be avoided. The following information

will assist with recommended servicing and adjustments:

48827

Models Affected:8321DV, 8324DV, 8326DV, 8328DV, 8333DV, 8537DV, 8544DV, 8548DV, 8552DV, 8315DVN,

8318DVN, 8321DVN, 8324DVN

Date: October 20, 2015

General Information

Document #TLUS200C-0001A 2 of 4

Hydraulic Hose Hookup:

Great Plains hydraulic hoses have color coded handle

grips to help hookup hoses to the tractor outlets. Hoses

with the same color use the same remote.

Use the following table to assist with hooking up the

implement:

Color Hydraulic Function

Black Lift (2 hoses)

Green Fold (2 hoses)

Red Gang (2 hoses)

“Brakes” Hydraulic trailer brakes (option)

48475

Hydraulic hookup example

Leveling The Machine Front To Rear:

Note: Prior to leveling the machine front to back, remove

the transport locks and unfold the machine on a level sur-

face.

1) Lower the machine so that the sweeps are 2 to 3

inches off of the ground on the center frame.

2) Using a wrench loosen the jam nut (1).

3) Adjust the turnbuckle at either adjustment nut (2) so

that the front of the machine runs slightly deeper then the

back.

4) Once properly adjusted, re-tighten the jam nut (1).

48828

Leveling The Machine Side To Side:

Wings should be adjusted to match the center section of

the machine.

1) Adjust the eye bolt on each wing to match the center

section. Lengthening the bolt will shallow up the wings

while shortening the bolt will allow the wings to run

deeper.

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Document #TLUS200C-0001A

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Disc Gang Adjustment:

Disc gangs are designed to run 1/2” to 1” shallower than

the cultivator sweeps. At this depth, the sweeps are

allowed to work in firm ground which improves trash

flow.

1) Adjust the depth gauge to read +1/2” to +1”. Do not

run the disc or coulter gangs in the RED ZONE. Note:

Disc blades should only be ran in the RED ZONE when

using 18” blades that are nearing the end of their wear

life.

48830

Adjusting The Depth Stop:

1) Lower the machine to the desired working depth and

set the depth stop at the front of the machine to ensure

consistent depth every pass. Note: Once set, if an

adjustment is necessary, one full turn of the depth stop

handle is equivalent to 1/4” of depth.

48831

Spike Drag Setting:

If the spike drag attachment is present, start with five

chain links hanging from the bottom drag arm slot (this is

a starting point for the worst conditions). The cleaner the

ground, the shorter the pull chain may be pulled.

On the spike drag, one of the links in the first row of

angles is turned over to allow trash to start flowing eas-

ier. Note: Make sure that the spike drag is never pulling

off of the hang chains. If so, shorten the pull chains.

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Document #TLUS200C-0001A 4 of 4

HD Spike & Reel Settings:

On HD spike drags, start with five chain links hanging

from the bottom drag arm slot (this is a starting point for

the worst conditions). The cleaner the ground, the

shorter the pull chain may be pulled. Note: Make sure

that the drag is never pulling off of the hang chains. If so,

shorten the pull chains.

1) Adjust the nut (3) so that the spring (4) is just making

contact with the front plate (5).

2) Turn the nut (3) and additional 1” further on the spring

rod to set the springs pre-load.

3) Lengthen the turnbuckle (6) to adjust the front mini

shank (7) to run more aggressive or shorten the turn-

buckle to run more passive.

48833

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