Lowering 2012-/3s 2-point (field, unfolded), Lower 2012-/3s 2-point (service/parking, folded) – Great Plains NP30A 30-foot Operator Manual User Manual
Page 57
Great Plains Manufacturing, Inc.
Applicator Operating Instructions
53
2014-05-20
407-502M
Lowering 2012-/3S 2-Point (Field, Unfolded)
See sidebar for considerations on a first pass.
1.
Close the weight-transfer shut-off valve (page 52).
2.
To lower the applicator, lower the tractor hitch and
retract the lift-assist cylinders (normally with a
Retract operation of the tractor remote).
3.
The front of the applicator lowers until the hitch
movement is stopped by your control, or by any
depth stop set on that control.
4.
The rear of the applicator lowers until the cylinders
are stopped by the installed spacers (page 38), or
until fully retracted if there are no spacers. If the
knives or tines are not in the ground, the lift-assist
wheels come off the ground until you pull forward
into the field.
5.
The unfolded wings lower to the height set by the
wing gauge wheels (page 86) or onto the knives or
tines.
6.
Set the 2-Point to Depth Control.
Set lift and fold circuits to Float.
Lower 2012-/3S 2-Point (Service/Parking, Folded)
This topic presumes that the intention is to lower a folded
applicator without unfolding. If the intention is to both
lower and unfold, see “Unfolding 3S & 2012- 5S
2-Point” on page 60.
1.
Close the weight-transfer shut-off valve (page 52).
2.
Raise the applicator. Set circuits to Neutral.
3.
Remove spacers (page 38) and install lift-assist lock
channels. Deploy parking stands (page 36) as
desired.
4.
Lower rear of applicator with lift/fold circuit. Stop as
soon as rear cylinders are fully retracted or on
spacers/locks.
5.
Lower front of applicator with 2-point hitch.
6.
Set circuits to Float.
First Pass Lowering:
• If lock channels are engaged on the rear lift-assist
cylinders, raise the applicator, disengage the
channels (page 44), and insert the desired number of
spacers (page 38).
• If the wings are drooped, retract the fold circuit
(page 61) to bring the wings into contact with the
wing locks, or to wings level. Set fold circuit to Neutral
until lowered to ground.
Equipment and Pavement Damage Risk:
Fully fold before lowering onto parking stands. Parking stands
support only the center section. If unfolded, wings may be
drooped, or will droop. Knives or tines will strike the ground,
immediately or eventually.