Steering – Great Plains 3PYPA Operator Manual User Manual
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3PYPA
Great Plains Manufacturing, Inc.
401-647M
03/20/2012
Steering
(APPLIES TO ALL PLANTERS
serial numbers B1026J- through B1027J+)
Hydraulic-powered planter steering is standard on
3PYPA planters. Before using the system for transport or
field operations, calibrate the ECU
a
Steering controls caster position. When the hydraulic
steering system is active, the casters steer to match the
turning radius of the tractor. This prevents wheel digging
in soft soils, and minimizes field damage when backing
and turning on beds.
Refer to Figure 23, Figure 24, and Figure 25
When engaged (via switch
), the system functions
automatically, and is active for all forward and reverse
movements up to 8.0 mph. Casters float during any
movement above 8.0 mph (12.9 kph).
Equipment Damage Risk:
All reverse planter movements require the tractor for which the
planter steering is calibrated. The casters match steering only
with that tractor, and only with steering engaged. See “Emer-
gency Moves Without Steering” on page 111.
Equipment Damage Risk:
If the Power LED
is not on and steady, do not move the
planter or make only careful forward moves. If the LED is
blinking, there is a steering malfunction, and steering is NOT
engaged. See “Steering Troubleshooting” on page 97.
a. Electronic Control Unit - Steering match relies on sensors mounted on both planter and tractor, and calibration of the ECU (page 107).
The tractor sensor is normally dealer- installed, a topic covered in the 3PYPA Pre-Delivery Manual, publication 401-647Q.
Null4:
Figure 23: Calibration
Steering Control Module Front View
29850
3
2
1
4
6
5
1
Null4:
Figure 24
s/n B1026J- Module Rear View
31775
2
Null4:
Figure 25
s/n B1027J+ Module Rear View
31698
7