Great-plains YP1220 Operator Manual User Manual download pdf (Page 48)

44 YP1220 Great Plains Manufacturing, Inc.

401-506M 03/14/2012

Row-Unit Down Pressure

Refer to Figure 46

An adjuster cam sets row unit spring down pressure

individually for each row unit. This is useful for penetrat-

ing hard soil and planting in tire tracks.

To adjust down pressure, use a tool to lift and rotate the

adjustment cam.

1. Raise the drill. Although this adjustment can be

made with the drill lowered, the springs will be in

tension, and will require more effort. The extra force

required may also damage tools.

2. Put tractor in Park and shut it off.

3. Position tool under upper spring link, and pull it

back and up.

4. Move the adjustment cam to the new setting on the

spring adjust bar .

Note: Do not set all rows higher than notch two. Using

high settings across all rows causes uneven

planting. Individual rows may be set higher if run-

ning in tire tracks.

Row-Unit Planting Depth

Refer to Figure 47

Side depth wheels outside the row-unit disks con-

trol row-unit planting depth. The position of an adjustable

stop, using the T-handle , determines planting depth.

Set planting depth by adjusting handle . To adjust, ﬁrst

raise row-units slightly, then lift and slide handle on top of

row-units. Adjust all handles to the same setting.

For shallower planting, slide handle forward toward

planter.

For deeper planting, slide handle back away from

planter.

Cam Notch Pounds

zero (out of notch) Maintenance Only

one

100

two

165

three

225

tip Do Not Use

FigureSpacer:

Figure 46

Row Unit Minimum & Maximum

12104

Figure 47

Side Depth Gauge Wheels

27387

1 2

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 89 90

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Great-plains YP1220 Operator Manual User Manual Page 48

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