Great Plains YP1625 Predelivery Instructions - Manual (Page 11)

4/21/2004 401-182Q
9 Adjustments Before Going to the
Field
Adjustments Before Going to the Field
General Maintenance
1. Refer to the operator’s manual for proper
lubrication intervals and maintenance
schedules. Be sure to lubricate all grease
fittings, especially the wing drive shafts.
2. Inspect the tire pressure of all tires.
a. Contact drive tires: 12 to 15 psi
b. Rear transport tires:
14.9 x 46 8-star (for planters with fertilizer
tanks and 82 bu. hopper): 60 psi
14.9 x 46 8-star (for planters without fertilizer
tanks and 82 bu. hopper): 30 psi
c. End transport 395/33B 16.5 NHS Skid Steer
tire: 60 psi
NOTE: The pressure of the contact drive wheel is
especially important. Deviating from the proper
setting will affect the seeding rate.
General Information
1. Be certain all 3-point hitch latches are properly
fastened and all safety lighting is properly
installed and functioning correctly.
Initial Planter Leveling
1. Unfold the unit on a level site.
2. Set the 3-point hitch so the top of the tongue is
46” off the ground. Set the 3-point down stop so
you can reference this setting when moving from
field to field. When setting hitch at 46”, lower lift
cylinders completely, then adjust.
Important: Planter must be fully lowered to field
position and hitch height must be set before
making end-to-end adjustments.
3. Locate the threaded eye bolt at the base end of
the gauge-wheel cylinders. The eye bolt is
locked in place by a jam nut. Observe the
distance between the eye and mounting base.
This should measure 2 1/2”, if so, no initial
adjustment is needed.
4. If the distance between the eye and mounting
base does not measure 2 1/2”, loosen and adjust
the jam nuts until it does. Repeat for other end of
planter.
5. Move the planter to a level area. With the planter
unfolded, raise the planter to its highest position
with the lift cylinders. With the tractor idling,
rephase the cylinders by holding the hydraulic
lever on for an additional 30 seconds.
Immediately lower the planter until the row-units
are just ready to touch the ground.
6. Move the gauge-wheel eye bolts until the
row-units on the outside end of the planter are
the same height as the center row-units.
NOTE: Eye-bolt adjustments are easier if the planter
is first lowered to the ground to remove some of the
force on the cylinders.
7. Repeat the steps above until the planter is level
end-to-end when planting in actual seeding
conditions.
8. With the planter unfolded and lowered in the field
position, place a block ahead of the wing gauge
wheels and pull ahead slightly to tension the pull
bars. The ends of the wing should be even to
1/4” forward of the center.
9. Lower unit fully, pull ahead a short distance and
check the parallel arms on the row-units. They
should be horizontal or slightly lower in the rear.
Row-units should also be horizontal with the
ground.
10. Before making any adjustments be sure
row-units are at the proper planting depth.
Raising or lowering the 3-point hitch slightly will
help level the openers for front-to-rear.
11. The planter lift cylinders may be equipped with
depth control collars if needed to adjust the
levelness of the parallel arms.
12. Re-check the end-to-end levelness and
re-adjust the eye bolts if needed.
13. The desired orientation is to have the row-units
level from front-to-rear, the parallel arms level
from front-to-rear or slightly low in the rear, and
the wing frames level from end-to-end so all
row-units are the same.