Great Plains 3PYPA Operator Manual - Manual (Page 165)

Great Plains Manufacturing, Inc. Table of Contents Index Appendix B - Initial and Option Setup 161
03/20/2012 Table of Contents Index 401-647M
Hopper Level Sensor Installation
Regardless of hopper/seed box used, the 3PYPA planter
includes a factory-installed seed level sensor in the air-
box.
If a 403-143K 82bu hopper was ordered with the planter,
it includes an 833-235C hopper level sensor which is not
factory-installed. This sensor can provide a second, ear-
lier, low seed level alarm.
Use of this sensor is optional, and level placement is at
your discretion. To install:
1. Perform the installation before first use of the hopper.
The sensor body is mounted inside the hopper. It
can be dangerous to enter a hopper if it contains any
seed, or has ever been used with treated seed.
2. Refer to Figure 45 on page 39 for placement eleva-
tions based on remaining hopper capacity. Great
Plains suggests mounting the sensor on the lower
front wall of the hopper.
3. Follow the steps in DICKEY-john
®
instruction sheet
11001-1126 to install the sensor.
4. Use silicone to seal the cable at the grommet, and
around the grommet, to prevent air leaks which can
interfere with consistent seed delivery.
After the hopper is mounted on the planter, the leads
connect to the “HOPPER 2” harness lead located below
the hydraulic drive in the planter center section.
Radar Calibration
At the first opportunity to operate the planter in the field
(with or without planting), the radar component of the
seed monitor needs to be calibrated. The seed monitor
manual describes the procedure.
Note: The planter must be in the lowered/field position for
this calibration. The angle of the sensor changes
when the planter is raised, and readings during
planting will be incorrect if calibrated in the raised
configuration.
Note: Due to this angle change, seed monitor speed
readings will not match tractor speedometer read-
ing during transport.
Null4:
Null4:
Figure 157
833-235C Hopper Level Sensor
29328
Null4:
Figure 158
Main Frame Shipping Stand
29209