Great-plains ADI334 Operator Manual User Manual download pdf (Page 22)

Section 3 Adjustments

Models ADI334 and ADI345 Air Drill Implement 160-195M 5/11/05

Great Plains Mfg., Inc.

Setting the Seeding Depth

For equal seeding depth across all openers, the drill must

be level from front-to-rear and side-to-side. The gauge

wheels set depth for the front of the drill. The press wheels

level the drill from front-to-rear. Side-to-side leveling is

done when the drill is assembled and should not require

re-adjustment.

Before adjusting seeding depth, make sure that the lift cyl-

inders are in phase as explained under Lifting the Drill,

“Operating Instructions,” page 16. Make sure the fold

cylinders are fully extended.

To set the seeding depth and level the drill:

1. Find the depth-control stop and plunger valve on one

of the lift cylinders directly behind the cart frame.

Loosen the bolt and slide the stop all the way down as

shown in Figure 3-1.

2. Raise or lower the drill so that the front rank of open-

ers is at the desired depth.

3. Slide the depth-stop clamp up the cylinder rod as far

as possible, making sure it fully depresses the plunger

rod. See Figure 3-2.

4. Check the depth of the rear rank of openers. If they are

not the same as the front rank, adjust the press

wheels to level the drill.

To adjust the press wheels, refer to Figure 3-3. Re-

move the handle lock pin and slide the handle back.

•To raise the rear rank of openers, turn the rod coun-

terclockwise, when viewed from above, so the dis-

tance from the handle to the press wheels

increases.

•To lower the rear rank of openers, turn the rod clock-

wise, when viewed from above, so the distance from

the handle to the press wheels decreases.

Figure 3-1

Depth-Control Stop

14500

Figure 3-2

Plunger Location

14500

Plunger

Figure 3-3

Press Wheel Adjustments

14501

Lock Pin

Lower

Deeper

Section 3 Adjustments

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 38 39

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Great-plains ADI334 Operator Manual User Manual Page 22

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