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Part Lists Great Plains Manufacturing, Inc. 1

Update Instructions

Air-Pro

Field Update Kit

Used with Planter models:

• Recommended update for all 2011 and earlier bulk-ﬁll

air-seed-delivery Yield-Pro

planters with Air-Pro

seed meters. This includes 2011- Models 3PYPA,

YP1225A, YP1625A, YP2425A, YP3025A, YP4025A

and YP4425A.

General Information

Refer to Figure 1

These instructions explain how to install an Air-Pro

Field Update Kit. The kit updates the air release cone

and screen

(not visible) to the 2012+ design. Because

the outlet end of the enhanced screen is larger, the kit

includes a length of adaptor tube , which requires

cutting the existing tube for installation. A saw template is

included.

Order one 403-645A (tool) kit per each 12 rows.

Order one 403-641A (parts) kit per row.

Examples:

YP1225A-1236: order 1@ 403-645A; 12@ 403-641A.

YP2425A-48TR: order 4@ 403-645A; 48@ 403-641A.

Notations and Conventions

Call-Outs

Tools Required:

• open-blade hand saw, such as a keyhole saw or mini

hacksaw, with an exposed blade length of at least

3 inches (7.6 cm);

• basic hand tools including groove-joint or similar

wide-jaw pliers for closing ratchet ties; and,

• a knife or similar tool for de-burring the inside edges of

the cut tubes.

Read the installation manual entirely. When you see

this symbol, the subsequent instructions and warnings

are serious - follow without exception. Your life and

the lives of others depend on it

a. The 2012+ screen is conical, rather than cylindrical. This improves resistance to seed bridging in the screen.

Kit Kit Description

403-645A AIR-PRO FIELD UPDATE TOOL

403-641A AIR-PRO FIELD UPDATE COMPONENTS

Note: This update is not required for 2012+ planters, nor

any gravity-fed (section seed box or row-hopper)

planters with Air-Pro

meters. Excluded gravity

Models include: 2025A, 2525A, YP425A,

YP425A3P YP625A, YP625A3P, YP625PD,

YP625TD, YP825A, YP825A3P and YP925TD.

Figure 1

Update Installed

34433

to Single-digit callouts identify components in

the currently referenced Figure. These

numbers may be reused for different items

from page to page.

to Two-digit callouts in the range 12 to 21

reference new parts from the list on page 8.

to Two-digit callouts in the range 51 to 56

reference existing parts.

1 9

51 56

Summary of content (8 pages)

PAGE 1
Part Lists Great Plains Manufacturing, Inc. 1 Update Instructions Air-Pro® Field Update Kit Used with Planter models: • Recommended update for all 2011 and earlier bulk-fill air-seed-delivery Yield-Pro® planters with Air-Pro® seed meters. This includes 2011- Models 3PYPA, YP1225A, YP1625A, YP2425A, YP3025A, YP4025A and YP4425A. Note: This update is not required for 2012+ planters, nor any gravity-fed (section seed box or row-hopper) planters with Air-Pro® meters.
PAGE 2
Great Plains Manufacturing, Inc. Front Page Part Lists Air-Pro® Field Update Kit Compatibility Check 1. Verify that the planter requires the update. If the meter has a single-piece tube 53 , of constant 123⁄32 inch (1.72, 44 mm) OD, below an air release cone 52 , it requires the update. 52 Refer to Figure 1 on page 1 • If the meter has a two-piece tube below the air release cone, the planter has already been updated.
PAGE 3
Shorten Existing Inlet Tube Front Page Part Lists Great Plains Manufacturing, Inc. 3 Shorten Existing Inlet Tube Install Cutting Template Leave the existing ratchet hose clamps restrain the tube 53 while cutting. 51 in place to 53 51 If the suggested quantity of 403-645A (tool) kits was ordered, you have one template for each 6 rows. Refer to Figure 3 7.
PAGE 4
Great Plains Manufacturing, Inc. Front Page Air-Pro® Field Update Kit Part Lists Remove Upper Cut Tube 6 Disconnect Seed Hose Refer to Figure 5 9. Push the boot lock ring 6 up to the narrower diameter of the seed hose boot 7 . Push the boot up off the air release cone. 7 Figure 5 Disconnect Seed Hose 34437 Remove Ratchet Clamps Refer to Figure 6 10. Remove all four ratchet clamps ( 51 , 54 )securing the existing air release cone 52 and inlet tube 53 .
PAGE 5
Install Update Front Page Part Lists Great Plains Manufacturing, Inc. 5 Install Update Install Elbow Sense Fitting Refer to Figure 6 (which depicts a non-sensing row) If the current meter has a plug 55 at the sense hole, skip to “Assemble Air Release” on page 5. Refer to Figure 8 (which depicts a bare meter housing for clarity) 15. From the 403-645A Tool kit, select one new: 51 14 891-328C EL 45 7/16MORB X 1/4HB Install it at the sense hole where the straight adaptor was removed.
PAGE 6
Great Plains Manufacturing, Inc. Front Page Air-Pro® Field Update Kit Part Lists Refer to Figure 9 20. Select one new: 20 817-981C FIELD FLARED SEED TUBE 13 20 4 Slide the larger end of the tube 20 over 2 the larger end of the screen 21 , and up against the stops 3 in the cone half. 18 Figure 10 Air Release Large Clamp Install Air Release Refer to Figure 11 21.
PAGE 7
Install Update Front Page Part Lists Great Plains Manufacturing, Inc. 7 Refer to Figure 13 23. Select two new: 16 7 17 800-434C NYLON HOSE CLAMP 2 1/8 - 2 3/8 (these two clamps are the middle size of the three sizes provided) Loosely secure these clamps 17 , ratchets away from meter, around the update tube and existing lower saddle 6 on the meter. 6 24.
PAGE 8
Front Page Great Plains Manufacturing, Inc. Air-Pro® Field Update Kit Part Lists Appendix Part Lists New Parts The part call-out numbers in this list match all Figures in these installation instructions. Part descriptions match those in your updated Parts Manual. Quantities are units (“ea”).