Great Plains Air-Pro Field Update Kit - Manual (Page 4)

4 Great Plains Manufacturing, Inc. Front Page Part Lists Air-Pro
®
Field Update Kit
403-642M Front Page Part Lists 2012-11-21
Remove Upper Cut Tube
Disconnect Seed Hose
Refer to Figure 5
9.
Push the boot lock ring up to the narrower
diameter of the seed hose boot . Push the boot up
off the air release cone.
Remove Ratchet Clamps
Refer to Figure 6
10. Remove all four ratchet clamps (
, )securing the
existing air release cone and inlet tube . These
clamps are not reused, and may be destroyed if
necessary to remove them.
The cone and upper section of cut tube fall free as
the last clamp is removed. None of these
components are reused.
11. Use a knife or similar too de-burr the inside edge
of the freshly cut lower tube lip.
Remove Sense Fitting
Refer to Figure 6 (which depicts a non-sensing row)
If the current meter has a plug
at the sense hole, skip
to “Assemble Air Release” on page 5.
Refer to Figure 7 (which depicts a bare meter housing for
clarity)
12. Disconnect the sense air line tube (not shown) at the
adaptor.
13. Remove and save one:
803-374C NUT HEX JAM 7/16-20 PLT
14. Remove the straight
7 ⁄
16
to hose barb adaptor. It is
not re-used, and must be replaced because the new
seed inlet tube requires more clearance.
Figure 5
Disconnect Seed Hose
34437
6
7
6
7
Figure 6
Remove Old Clamps
34438
51
51
51
54
52
53
8
55
51 54
52 53
8
Figure 7
Remove Straight Sense Adaptor
34567
55
51
55
51