Sharp R-652M Instruções de Operação descarregar pdf (Página 66)

62 YP4-6-825A3P Table of Contents Index Great Plains Manufacturing, Inc.

401-652M Table of Contents Index 2015-01-26

Press Wheel Adjustment

The press wheels close the furrow which gently presses

the soil over the seed to ensure good seed-to-soil

contact for even emergence.

To provide consistent seed ﬁrming, the press wheels are

free to move downward from their normal operating

position. This system maintains closing/pressing action

even if the row unit arm is lifted when the disks encounter

obstructions.

There are three adjustments available on the press

wheel assembly:

Refer to Figure 74

1. Down pressure (shown at maximum)

2. Wheel stagger (shown staggered)

3. Centering (see Figure 76 on page 63)

Press Wheel Down Pressure

Handle sets down pressure, which may need

adjustment for different soil types and ﬁeld conditions.

• Relax the handle forward (in the direction of travel) for

decreased down pressure.

• Pull the handle back for increased down pressure.

Note: Higher press wheel down pressures reduce the

down force on the main row unit shank

components, such as the openers. High press

wheel settings may require an increase in overall

row unit down force. See page 47.

Press Wheel Stagger

The factory stagger setting has been found optimal for

residue ﬂow. If your conditions appear to require even

press wheels, you might try one row before

re-conﬁguring the entire planter. To change the stagger:

Refer to Figure 75

1. Raise the planter. Secure with blocks or jack stands.

2. Remove the bolt , nut and lock-washer for the

left press wheel .

3. Move the spacer and wheel to the forward of

the two mounting holes at .

4. Re-install the bolt, lock washer and nut. Tighten.

Higher press wheel down pressures reduce the down

force on the main row unit shank components, such as

the openers. High press wheel settings may require an

increase in overall row unit down force. See page 47.

Figure 74

Press Wheel Adjustments

25118

Figure 75

Press Wheel Force & Stagger

22907

4 5 6

7 8

1 2 ... 61 62 63 64 65 66 67 68 69 70 71 ... 127 128

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