Great-plains ADI445 Operator Manual User Manual download pdf (Page 32)

Section 2 Operating Instructions

Model 2250 Air Drill Implement 160-192M 5/11/05

Great Plains Mfg., Inc.

Implement Lifting System

The implement lifting system is equipped with rephasing-

type hydraulic cylinders in a master-slave conﬁguration.

They must be bled free of air using the procedures listed in

Bleeding the Hydraulic Lifting System in the “Assembly

and Setup” section on page 16 for proper operation. The

cylinders may, after a period of time, get out of phase. This

will cause one section of the implement to run higher or

lower than other sections because the cylinders lifting it

are extended more or less than the others. To rephase the

cylinders, raise the implement completely up and hold the

hydraulic lever on forseveral seconds until all cylinders are

fully extended. This should be done every time the imple-

ment is raised out of the ground. Once all cylinders are ful-

ly extended, the hydraulic control should be momentarily

reversed to allow the cylinders to retract 1/2”. This will help

maintain a level implement.

For depth control, the implement uses stop collars on each

of the outside castor wheel cylinders, see Figure 2-1.

Along with the press wheel adjustments, the stop collars

can be added and removed to adjust the seeding depth of

the openers. When not in use, the stop collars can be

stored on the hydraulic hose connected to the cylinders.

The lift system has cylinder lock channels for the front cen-

ter dual gauge wheel cylinders. These channels must be

used every time the drill is folded or transported. The cyl-

inder lock channels must also be used any time mainte-

nance or lubrication is being performed on the implement.

Folding the Drill

DANGER!

Overhead crushing hazard - to prevent serious injury or death:

•Always use transport locks when implement is folded.

•Fold implement only if fold cylinders and hoses are bled free

of air and fully charged with hydraulic oil.

•Stay away from frame sections when they are being

raised/lowered or are in the raised position.

•Keep others away.

Cylinder Stop Collars

Figure 2-1

15186

DANGER!

Electrocution hazard -

to prevent serious injury or death from electrocution: Keep

clear of overhead power lines when transporting, folding, un-

folding, or operating all air drill components. Machine is not

grounded. Electrocution can occur without direct contact.

1. Folding is to be done on level ground only. Be aware of

the clearance required to fold the implement. Do not

fold the implement where it may come into contact

with obstructions or overhead lines. Keep all persons

clear of this area.

2. Raise implement until all lift cylinders are completely

extended.

3. Install the lift cylinder lock channels.

4. Be sure that folding lock pins are removed from the

folding lock plates, see Figure 2-2.

5. Set tractor at slow idle speed.

6. Engage the folding system hydraulics and slowly fold

the implement. During folding, both outside frame

sections should fold up ﬁrst followed by one or both of

the inside sections.

7. When folding is complete, insert the folding lock pins in

place to prevent the wings from falling, see Figure 2-3.

NOTE: Never attempt to fold the implement without

ﬁrst completely raising it and installing the gauge

wheel cylinder lock channels or serious equipment

damage will occur.

Folding Lock Pin Removed

Figure 2-2

15187

Folding Lock Pin in Place

Figure 2-3

15188

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Great-plains ADI445 Operator Manual User Manual Page 32

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