Cta: prepare hoses for sensors, Cta: install blockage sensors – Great Plains NTA3510 Installation Instructions User Manual
Page 11

Great Plains Mfg., Inc.
Installation Instructions
11
10/29/2008
168-414M
CTA: Prepare Hoses for Sensors
DICKEY-john Recon-II blockage sensors
require a
hole in the hose for the detectors
. The sensor has flex-
ible flaps which are tie-wrapped around the seed hose.
The long flap
goes over the short flap
.
Note: Use a hole saw to make the hole. Use a high speed
drill (to minimize rough edges), and cut slowly (to
minimize risk of drill-through).
Using a drill bit is likely to damage the hose.
Refer to Figure 21 (showing hole on top)
12. Drill one hole in each secondary seed hose at each
tower. Check the first hole for sensor fit before drill-
ing the remaining holes.
The hole location is approximately:
13in (33cm)
from where the hose enters the tower.
The hole diameter is:
11
⁄
16
to
3
⁄
4
in (17-19mm)
Make the hole on the underside of the hose (toward
center of tower), or rotate the hose to hole-under
after drilling or installing sensor.
CTA: Install Blockage Sensors
Refer to Figure 22 and Figure 20
13. Select one:
14. Orient sensor
with signal lead toward opener.
Insert the detector head
in the hose hole.
Wrap the short flap
around the hose.
Wrap the long flap
over the short flap.
Check that the long flap overlaps by at least
1
⁄
4
in
(6mm), but by no more than 1in (25mm). If the flap
is too long, cut off any excess. Re-check overlap.
15. Select two ties from either:
110110050 TY WRAP BUNDLE 50-14"
110110099 TY WRAP BUNDLE 100-14"
Secure the sensor to the hose with ties.
Figure 20: CTA:
Blockage Sensor
28197
Figure 21: CTA:
Sensor Hole Location
28194
Figure 22: CTA:
Mount Sensor
28195
Opener
Tower