Great Plains CTA4000 Operator Manual - Manual (Page 16)

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Section 2 Operating Instructions
CTA4000 Air Drill Implement 160-269M 2/1/06
Great Plains Mfg., Inc.
Section 2
Operating Instructions
This section covers general operating procedures. Experi-
ence, machine familiarity and the following information will
lead to efficient operation and good working habits. Care-
fully read the operator’s manual for the air-drill cart you will
be using with the implement. Always operate farm machin-
ery with safety in mind.
General Description
All implement hydraulic functions are tied into the valve
block that is mounted on the left wing. See Figure 2-1.
The valve block has two selector valves. The field/trans-
port selector valve (1) allows you to hydraulically lock up
the openers. The field/fold selector valve (2) allows you to
switch between field operation and folding or unfolding.
The valve block also has three control valves. One control
valve (3) is for adjusting opener down pressure on the
wing sections. Another control valve (4) is for adjusting
opener down pressure on the center section. A third con-
trol valve (5) is for adjusting weight transfer to the wings.
Figure 2-1
Valve Block
Prestart Checklist
1. Lubricate the implement as indicated under Lubrica-
tion, “Maintenance and Lubrication,” page 26.
2. Check all tires for proper inflation as indicated on Tire
Inflation Chart, “Appendix,” page 30.
3. Perform all beginning-of-season and daily service
items under General Maintenance, “Maintenance
and Lubrication,” page 26.
4. Check the implement for worn or damaged parts.
Repair or replace them before going to the field.
5. Check all nuts, bolts and screws. Refer to Torque Val-
ues Chart, “Appendix,” page 30.
Folding and Unfolding
Fold and unfold implement on level ground. Be aware of
clearance required to fold implement. Refer to “Specifica-
tions and Capacities,” page 29.
!
DANGER!
Overhead crushing hazard. To prevent serious injury or death:
•
Always use lock pins when implement is folded.
•
Fold implement only if fold hydraulics are bled free of air and
fully charged with hydraulic oil. Refer to Bleeding Hydrau-
lics, “Preparation and Setup,”
page 12 .
•
Keep away and keep others away when folding or unfolding
implement.
!
DANGER!
Electrocution hazard. To prevent serious injury or death from
electric shock, keep clear of overhead power lines when trans-
porting, folding, unfolding or operating all air-drill compo-
nents. Machine is not grounded. Electrocution can occur
without direct contact.
Folding the Implement
1.
Fully raise openers.
2. Turn the field/transport selector valve (1) to transport
to hydraulically lock up openers. Turn the field/folding
selector valve (2) to folding.
Figure 2-2
Selector Valves
3. Set tractor at low idle speed.
4. Engage tractor hydraulics and fold implement.
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