horsch Panther 440, Owner'S Manual

Page: 60 / 98

60 | P a g e P a n t h e r S e r i e s O w n e r ’ s M a n u a l
Depth Setting
When in operation, the air seeder is supported by 12 hydraulic cylinders which raise the
machine for sowing.
The rear main cylinders divide the lift hydraulic system in to two separate circuits. In each
circuit all the cylinders are arranged in series.
The diameter of each following (series) cylinder is smaller to enable the lifting distance to
remain constant across the entire working width.
Each cylinder is filled through a rephasing orifice which also compensates for any leaks.
In the extended position the rephasing orifice are exposed to allow the oil to flow into the next
cylinder. The cylinders are filled with oil, vented and aligned with the end stop.
The cylinders are balanced automatically as soon as the control device is activated for a longer
period during lifting. This should be done several times a day in order to ensure that the
machine is always raised and lowered evenly. For more information see
‘Rephasing the
Hydraulic Cylinders’ further in this section.
NOTE: It is necessary to rephase the cylinders before adjusting the depth.
Basic Setting
The basic frame settings are adjusted from the factory. This involves adjusting the cylinder
piston bosses and brackets to create an even gap between the frame and the ground so as to
achieve a level setting at both the front and rear using the cylinder spacers.
Check Basic Setting:
1. Check the air pressures on the caster tires and packer tires and inflate to recommended
pressure noted in this manual if necessary.
2. Hitch up the machine and unfold it on level ground.
3. Raise the air seeder and level off the cylinders.
4. Place identical combinations and equal number spacers on the hydraulic cylinders for
the depth guide.
5. Lower the air seeder until it is just off the ground. The openers should all be at
approximately the same height. The cylinders should be flush against the spacers on all
the connecting rods.
6. Adjust the connecting rods and mounting plates if necessary.
* All other adjustments are made in the field. Further information is detailed in ‘Setting the
Seed Depth’ explained in this section.