Great Plains Air-Pro Field Update Kit - Manual (Page 3)

Shorten Existing Inlet Tube Front Page Part Lists Great Plains Manufacturing, Inc. 3
2012-11-21 Front Page Part Lists 403-642M
Shorten Existing Inlet Tube
Install Cutting Template
Leave the existing ratchet hose clamps in place to
restrain the tube while cutting.
If the suggested quantity of 403-645A (tool) kits was
ordered, you have one template for each 6 rows.
Refer to Figure 3
7.
Select one new:
817-982C FIELD CUT TEMPLATE
Snap the template around the existing seed inlet
tube , with the larger angled beveled face toward
and flush with the meter back plate.
Rework Risks:
Make sure the template is flush with the meter backplate.
Ensure that the cut follows the template (blade flush with
template, with template flush with meter and tube).
If the template is high, the cut tube will be too tall, and will
need to be re-cut to mate properly with the new tube extension.
If the cut does not follow the template, parts of the tube edge
will be too tall, possibly creating an edge that can catch seed.
If the template is low, an air gap may be created, which can
cause air metering problems, as well as create a gap that can
catch seed. This would require replacing and re-cutting the
817-783C inlet tube.
Cut Existing Inlet Tube
Refer to Figure 4, which depicts a mini hacksaw with a
partially exposed open-ended blade
8.
Keeping the blade flat against the top guide
surface
of the template, carefully cut the existing
tube from front to back.
Equipment Damage Risk:
Be particularly careful in the final
1 ⁄
2
inches (2.5 cm) of cut.
The blade is closer to the meter back plate than the drive
chain
. Reduce stroke length. Avoid striking the drive chain
or the shutter index plate . Scratches will provide sites for
rust to form.
Using a reciprocating saw
(with a stroke length of over 1 inch:2.5 cm)
for this cut is especially challenging - chain damage is likely.
Figure 3
Cutting Template Affixed
34435
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53 51
51
53
13
13
53
Figure 4
Cutting Existing Tube
34436
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4
2
2
3
4