Steering – Great Plains 3PYP Operator Manual User Manual
Page 43
Great Plains Manufacturing, Inc.
Operating Instructions
39
2014-09-09
401-312M
Steering
(APPLIES TO ALL PLANTERS
serial numbers A1055S- through A1056S+)
Hydraulic-powered planter steering is standard on 3PYP
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 40
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 km/h).
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
“Emergency Moves Without Steering” on page 154.
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 Error Flash Codes” on page 85.
a. Electronic Control Unit - Steering match relies on sensors mounted on both planter and tractor, and calibration of the ECU (page 151).
The tractor sensor is normally dealer- installed, a topic covered in the 3PYP Pre-Delivery Manual, publication 401-312Q.
Figure 40
Steering Control Module
29850
3
2
1
5
6
4
1
Figure 41
s/n A1055S- Module Rear View
31775
2
Figure 42
s/n A1056S+ Module Rear View
31698
7