PL5500 Planter
Operation
Great Plains | 411-633M | 2021/10/21
19
Raising/Lowering Planter with IRC
Crushing Hazard
A raised planter slowly lowers when held up by
hydraulic circuit alone, resulting in serious
injury for persons trapped beneath row units.
Use hydraulic circuit to only hold the raised
planter for brief periods, such as during field
turns and cylinder lock installation. Cylinder
locks should always be used during transport,
parking, and storage, and when completing
adjustments and maintenance.
Raising Planter with IRC
1. Move the planter to level, even ground.
2. Place the tractor in park and/or set the park
brake.
3. Make sure markers, if installed, are fully folded.
4. Extend tractor circuit lift lever until the lift
cylinders are fully extended.
5. Set the tractor lift circuit lever to neutral to briefly
hold the planter at lift.
6. Install cylinder locks on the fully raised lift
cylinder rods on both of the main transport
wheels and secure with pins
.
Lowering Planter with IRC
1. Move the planter to level, even ground.
2. Place the tractor in park and/or set the park
brake.
3. Make sure markers, if installed, are fully folded.
4. If installed, remove cylinder locks on the lift
cylinder rods.
5. Retract tractor circuit lift lever until the lift
cylinders are fully retracted.
6. Set the tractor lift circuit lever to neutral to briefly
hold the planter.
Rephase Lift System
In typical use during a single planting operation, it is
normal for the lift cylinders to become out of phase,
resulting in uneven raising and lowering of the
planter.
If rephasing without IRC, the lift valve selector
lever must be set to FORWARD to rephase all
four lift hydraulic cylinders;
two on the main
transport wheels and two on the wing gauge
wheels.
Every 8 to 10 passes, rephase the lift cylinders:
1. Raise the planter fully.
2. Continue to extend tractor lift hydraulic lever for
several seconds after the lift cylinders are fully
extended.
3. When all of the lift cylinders are fully extended,
briefly retract tractor hydraulic lever to lower the
planter by 1/2 inch (13 mm).
Unfolding/Folding Planter
Pinch Point, Cut, and Crushing Hazards
Keep all persons away from wings and openers
while unfolding or folding the planter. Openers,
wings, and other components will cut, pinch, or
crush anything beneath them, and can result in
serious injury or death.
Machine Damage Risk
If markers are installed, always fold markers
before unfolding or folding the planter or
machine damage can occur.
Machine Damage Risk
The lift valve selector must be set to
REARWARD to protect the machine from
unintended movement before the unfolding
operation has been completed. Prematurely
lowering the wing gauge wheels will cause
significant frame damage.
Unfolding the Planter
The planter width will increase while unfolding the
wings from the transport position. It is important to
ensure there is adequate overhead and side-to-side
clearances for unfolding.
Folding the Planter
Fold the planter for moves between fields, transport
over public roads, parking, and storage.
The planter width will decrease while folding the
wings. It is important to make sure there is adequate
overhead and side-to-side clearances for folding.
Unfolding Wings without IRC
1. Move the planter to level ground with adequate
overhead and side-to-side clearances for
unfolding/folding.
2. Place the tractor in park and/or set the park
brake.
3. Make sure markers, if installed, are fully folded.
4. Set the tractor marker circuit lever to neutral to
prepare to set the marker valve.
5. Set the tractor lift circuit lever to neutral to
prepare to set the lift valve.
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