Great Plains 3PYP Planters - Manual (Page 8)

8 Great Plains Manufacturing, Inc. Front Page Part Lists Steering Upgrade
401-640M Front Page Part Lists 08/11/2010
Install New Steering Harness
Refer to Figure 9
Remove the old steering harness from the planter.
35. Remove the direction sensor and sensor bracket
from the left caster wheel.
36. Install the new planter harness starting at the ECU.
Be sure to have enough free wire to connect to the
ECU and to swing the ECU mount without binding,
pulling or pinching any wires. The harness plugs
into the steering valve manifold, the implement
radar, the implement lift switch, and the steering
hydraulic cylinder.
37. Connect the steering valve manifold harness to the
implement steering harness . The connector is a 6
pin weatherpack fitting.
38. Locate the connection between the radar harness
and the DICKEY-john
®
monitor harness . It is a 4
pin round threaded connector and is located just to
the left of center of the planter above the 7x7 toolbar
and in between the two 1/2 inch vertical stiffener
plates welded to the top of the toolbar.
39. Unplug the radar from the monitor harness. Plug the
steering harness into the monitor harness then plug
the radar into the end of the steering harness
40. Locate the connection between the lift switch har-
ness and the DICKEY-john
®
monitor harness . It is
also located just to the left of center of the planter
above the 7x7 toolbar and in between the two 1/2
inch vertical stiffener plates welded to the top of the
toolbar. This connection is made up of three single
weatherpack connectors. In the original configura-
tion only two are used and the third is free. Unplug
the connectors and plug the steering harness into
the monitor harness
. Plug the steering harness
into the monitor main harness as follows:
- Steering Harness Blue wire to Monitor Harness Red
- Steering Harness White wire to Monitor Harness Black
- Steering Harness Other White wire to Switch Harness Black
- Steering Harness Black wire to Switch Harness Red
- Steering Harness Red wire to Switch Harness Green
41. At the rear of the planter attach the 4 pin round
threaded steering harness connector to the sen-
sor mounted in the end of the steering cylinder.
42. Using wire ties secure the new harness to the
planter. All wires should be secured adequately
enough so they will not sag or get caught on any-
thing nearby. Be sure to leave adequate loose wires
wherever there is movement possible with the
planter.
Figure 9
New Steering Harness
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