Great Plains YP4025F-1670 Operator Manual - Manual (Page 176)

172 YP4010HD/YP4025/F Table of Contents Index Great Plains Manufacturing, Inc.
401-571M Table of Contents Index 2014-09-08
Hopper Level Sensor Installation
Regardless of hopper/seed box used, the YP40 planter
includes a factory-installed seed level sensor in the
airbox.
If a 403-143K 82 bu. or 403-174K 150 bu. 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, earlier, 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 46 on page 48, or Figure 47 on
page 49 for placement elevations 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
reading during transport.
Dual Marker Speed Adjustment
Crushing and Sharp Object Hazards:
You may be injured if hit by a folding or unfolding marker.
Markers may fall quickly and unexpectedly if the hydraulics
fail. Never allow anyone near the planter when folding or
unfolding the markers.
Figure 160
833-235C Hopper Level Sensor
29328
Figure 161
Radar
29302