Great Plains NTA3010 Operator Manual - Manual (Page 16)

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Section 2 Operating Instructions
NTA3010 and NTA3510 Air Drill Implement SN Z1370- 160-219M 8/14/
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
The implement has two hydraulic circuits. One circuit lifts
the implement. A second powers the cart fan, implement
folding and weight transfer.
An electric circuit powers a clutch on the cart metering
system and a solenoid valve on the implement weight-
transfer system. The circuit has a master switch in the
tractor cab that powers the entire circuit. An automatic
switch on the implement rockshaft engages and disengag-
es the clutch as the implement is lowered and raised. The
in-cab switch must be on during field use and off during
folding, unfolding and transport.
!
WARNING!
Escaping fluid under pressure can have sufficient pressure to
penetrate the skin causing serious injury. Avoid the hazard by
relieving pressure before disconnecting hydraulic lines. Use a
piece of paper or cardboard, NOT BODY PARTS, to check for
leaks. Wear protective gloves and safety glasses or goggles
when working with hydraulic systems. If an accident occurs, see
a doctor immediately. Any fluid injected into the skin must be
surgically removed within a few hours or gangrene will result.
Pre-start Checklist
1. Lubricate the implement as indicated under Lubrica-
tion, “Maintenance and Lubrication,” page 28.
2. Check all tires for proper inflation as indicated on Tire
Inflation Chart, “Appendix,” page 33.
3. Perform all beginning-of-season and daily service
items under General Maintenance, “Maintenance
and Lubrication,” page 28.
4. Check the implement for worn or damaged parts. Re-
pair or replace them before going to the field.
5. Check all nuts, bolts and screws. Refer to Torque Val-
ues Chart, “Appendix,” page 33.
Lifting Implement
Your air drill implement is equipped with rephasing hydrau-
lic cylinders in a master-slave configuration. For proper
operation the system must be free of air. Refer to Bleed
Hydraulics, “Preparation and Setup,” page 11.
Rephasing Lift System
Over a period of normal use the cylinders may get out of
phase. This will cause some implement sections to run
higher than others. To rephase the cylinders:
1. Raise the implement completely and hold the hydrau-
lic remote lever on for several seconds until all cylin-
ders are fully extended. Do this every time you raise
the implement out of the ground.
2. When all cylinders are fully extended, momentarily re-
verse the hydraulic remote lever to retract the system
1/2 inch to maintain levelness.
Lift System Transport Locks
The lift system has transport locks for the rockshaft and
lift-assist cylinders. Use these locks every time you raise
the drill for maintenance, lubrication, folding or transport.
To install the rockshaft locks, remove the locks from stor-
age on the implement frame. Pin the locks in place on the
raised implement as shown in Figure 2-1.
Figure 2-1
Rockshaft Transport Lock in Place
To install the lift-assist locks, remove the locks from stor-
age. Figure 2-2 shows the left lock in storage.
Figure 2-2
Lift-Assist Transport Lock, Storage
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