GREAT PLAINS 1205NT Leitfaden

FIELDADJUSTMENTGUIDE

Document #DRUS500C-0002A

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Document # DRUS500C-0002A

Drills

1205 End Wheel No-Till Drill

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:

48714

Models Affected:1205NT

Date: March 9, 2015

General Information

Document #DRUS500C-0002A 2 of 5

Transporting The Drill:

When transporting the drill, the transport locks should

always be used. This will prevent damage to the drill and

possible personal injury should hydraulic failure occur.

1) To install the transport locks, fully raise the drill and

place the transport lock onto the rod of the cylinder and

secure it in place with a pin and clip.

48728

2) Always disengage the lockout hub before transporting

the drill.

48710

Hitching The Drill To The Tractor:

1) With the drill lowered and tongue jack in the parking

position, level the tongue, then back the tractor to the drill

hitch and adjust to match the draw bar height. Adjust the

hitch height as needed with the implement jack to match

the draw bar.

2) After hooking the drill to the tractor and attaching the

hydraulic hoses, raise the drill up to the maximum height

and hold the hydraulic lever for 30 seconds to re-phase

the cylinders. This procedure will remove any air in the

system, allowing the drill to raise and lower evenly. The

re-phasing procedure should be repeated several times

a day to ensure that the drill continues to lift evenly.

Remove the transport locks.

48713

Document #DRUS500C-0002A

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Leveling The Drill:

1) Loosen the locknuts (1) and adjust the cylinder eye-

bolts (2) so that there is initially about 3 1/16 inch of

thread above the mounting plate.

2) Fully raise the drill, then lower the drill to the ground

until the openers and coulters are 1 to 2 inches off the

ground.

3) Measure the distance from the coulter tube to the

ground on both ends of the drill.

4) Adjust the eye-bolts to level the drill from end to end.

5) Tighten the nuts on eye-bolts when the drill is level.

48725

3 1/16”

Coulter Depth Control:

The master-slave lift cylinder on the drill controls the

depth of the coulters. A depth valve regulates the

retracted length of these cylinders.

1) Lower the drill until the desired coulter depth is

achieved and set the coulter depth stop. Raise the drill

up and drive forward while lowering the drill as it’s mov-

ing. Recheck the coulter depth and adjust, by doing this

the coulter depth will always return to the same depth.

Note: Changing the depth of the coulters will effect over-

all planting depth of the openers. Press wheels will need

to be adjusted accordingly.

48711

Individual Coulter Adjustment:

Coulter springs are preset at the factory giving the

coulters an initial operation force of 400+ lbs. This setting

is adequate for most fields conditions. Re-setting the

coulter spring shorter than 9 3/4 inches can cause pre-

mature failure of parts.

48646

Opener Down Pressure:

The “W” clips on the opener spring rods should be in the

lowest hole. This is the correct location in all conditions.

The “W” clips can be raised one hole on openers in wheel

tracks only if penetration is not adequate.

48645

Document #DRUS500C-0002A 4 of 5

T-Handle Adjustment:

The depth of each opener is controlled by the height of

the press wheel. Varying the height of the press wheel

changes the seeding depth of the opener. Moving the “T”

handle to the front of the opener shallows the depth;

moving the “T” handle towards the rear of the opener

increases the depth. For a starting point, place the “T”

handle in the center.

48642

Deeper Shallower

Gauge Wheel Idler Adjustment:

Located inside the left hand gauge wheel arm is two idler

sprockets that should be readjusted after the first 100

acres of drill use. From then on, readjust the idler sprock-

ets at the beginning of each season. Note: Do not over-

tighten the chains to avoid excessive wear.

48712

Seed Cup Adjustment:

Check all seed cups to ensure that they are clean and

free of obstructions. The seed rate handle should move

freely and not have excessive play in it.

1) To check seed cups for accuracy, loosen the seed

adjustment handle by unscrewing the wing nut located on

the underside of the handle and sliding the seed box rate

handle to 100.

2) Place a seed calibration tool (817-459C) into the seed

cup from the top (use the 7/8” side).

3) Once the tool has been placed into the seed cup, slide

the seed adjustment handle until the feed wheel presses

up against the block tightly.

4) With the feed wheel pressed tightly against the calibra-

tion tool, the seed cups are set at exactly 50%. The brass

gauge should read 50%. If the seed adjustment handle is

not lined up on 50%, loosen the two screws holding the

gauge and adjust the brass plate until it reads 50% then

tighten the screws.

48381

48380

Document #DRUS500C-0002A

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Select Drive Type:

The gearbox is designed to give a variety of drive

speeds for different types of seeds and rates. It is a lin-

ear shift pattern design with constant mesh gearing

and is totally sealed to keep any dirt out. No lubrication

is required unless service is needed.

1) To set the gearbox, move the selector handle until

the desired drive type appears in the window on the

handle.

Main Seed Box Drive Type Ratios

Drive Type 2 is 2.06 Times Faster Than 1

Drive Type 3 is 3.08 Times Faster Than 1

Drive Type 4 is 5.03 times Faster Than 1

Feed Cup Adjustment:

Each feed cup is equipped with a four-position adjust-

ment handle.

A) The highest position is for wheat and other small

grains

B) The second is for soybeans and other large grains

C) The third is used if the seeds are cracking in the

second position

D) The bottom position is for clean out and will drain all

seed

Note: Do not open the seed cup handle to the bottom

position with seed in the box unless complete clean

out is desired. Changing this handle will change the

seeding rate. When storing after drilling season, it is

best to place the handle in the bottom position to pre-

vent damage from mice.

48509

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