GREAT PLAINS 1205NT Guide

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

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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.
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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.
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3 1/16”
2
1
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.
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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.
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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
A
B
C
D