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Great Plains Mfg., Inc.

Installation Instructions 1

Fan Butterﬂy Valve Kit

Yield-Pro Hydraulic Fans

Used with:

• Pre-2007 12- and 16-row Yield-Pro Planters

General Information

These instructions explain how to install the Fan Butterﬂy

Valve Kit. This feature is now standard on new products,

and is available as an upgrade to provide additional air

ﬂow control.

The kit also includes a miscellaneous update, of 6

decals, applicable to older Yield-Pro planters.

These instructions apply to:

Before You Start

Each kit converts one fan.

For each kit, inventory the contents per the “Parts List”

on page 4.

Establish that your fan has the necessary pre-drilled and

tapped holes for mounting kit components; some fans

may not. More typically, the holes are present and con-

tain a bolt and plastic plugs.

If necessary, move the implement to a dry well-lighted

location suitable for disassembly.

Park and secure the implement. Secure the tractor if left

connected.

Disconnect any hydraulic and electrical power to the

implement

Have the following tools at hand:

•

⁄

-20 UNC tap and tap wrench, #7 drill bit and drill

• Basic hand tools (including a right-angle ﬂat-bladed

screwdriver)

• Fine-tip washable marker

Installation

Refer to Figure 2

Inspect the mounting orientation of your hydraulic fan.

The ﬂange has an eccentric shape, and the narrowest

part of the ﬂange needs to be adjacent to the location

where the new fan control will go . If it is not mounted

this way, complete the following steps:

1. Remove and save the 6 bolts holding the cap

screen on the fan cage (not shown). Note the orien-

tation of any fan block bafﬂe on the cage.

2. Disconnect the fan sensor connector, remove any

protective grommet at the screen hole, and pull the

sensor lead inside the cage.

3. Remove and save the bolts holding the ﬂange to the

fan .

4. Rotate the fan into the orientation depict at right.

Re-insert the ﬂange mounting bolts and secure.

5. If the fan has a blocking bafﬂe, remove its fasteners

and re-mount it as it was previously oriented.

6. Cut a new hole for the sensor lead, at screen bot-

tom, but clear of the operating area for the new con-

trol. Re-insert grommet. Seal old hole.

7. Re-attach cage screen cap.

401-457K Fan Butterﬂy Valve Kit

(order one kit per fan)

Figure 1

Fan Flange

25392

Summary of content (4 pages)

PAGE 1
Great Plains Mfg., Inc. Installation Instructions 1 Fan Butterfly Valve Kit Yield-Pro Hydraulic Fans Used with: • Pre-2007 12- and 16-row Yield-Pro Planters General Information These instructions explain how to install the Fan Butterfly Valve Kit. This feature is now standard on new products, and is available as an upgrade to provide additional air flow control. Establish that your fan has the necessary pre-drilled and tapped holes for mounting kit components; some fans may not.
PAGE 2
Great Plains Mfg., Inc. 2 Fan Butterfly Valve Kit The fan valve control is mounted on the inlet face of the fan housing. 8. Loosen hose clamp 1 and remove 6in fan hose 2 . 5 Refer to Figure 2 4 9. Remove bolts or knock plastic plugs out of fan shaft holes 3 . Any bolts/plugs in these holes are not reused. 10. Check that these holes are at least 3⁄8in diameter. Use the fan shutter control shaft to check fit. The shaft must pass through both holes, and pivot freely.
PAGE 3
Great Plains Mfg., Inc. Installation Instructions 3 Refer to Figure 4 15. Insert the fan shutter control shaft holes. 12 in the shaft 16. Loosely install the 1⁄4-20 x 1in bolt in the control’s slot. 19 and washer 20 20 19 17. Rotate the control to fully open (0 degrees on the scale), and tighten the 1⁄4-20 bolt. 12 Figure 4 Insert Shaft 25138 Refer to Figure 5 18. Place the fan shutter disk 13 on top of the shaft 12 , and temporarily hold it there by inserting the two 1024 screws 13 . 19.
PAGE 4
Great Plains Mfg., Inc. 4 Fan Butterfly Valve Kit Apply Decals The new caution decals 17 are placed on the back face of the main toolbar, between row units. The following table contains suggested locations “D” for various planter configurations. 17 Clean and dry each location. Peel the release paper from the decal. Apply it and smooth out air bubbles with a soft cloth.