Great Plains Power Beyond - Manual (Page 6)

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PB 01/03/11
Great Plains Manufacturing reserves the right to make changes or to add improvements to this guide at any time without notice or obligation.
Tractors Equipped with Additional Accessories
Connected to Power Beyond
Some tractors may be equipped with additional accessories that connect to power beyond
connections on the rear of the tractor (i.e. auto steering). If the tractor power beyond connections
are already in use, then there are exceptions that need to be followed for the particular type of
tractor hydraulic system before tee’s are installed for case drain, motor return, power beyond
pressure, and load sense connections.
Determine the type of closed center hydraulic system and use the information provided for each
type before connecting.
LS Closed with Load Sense Active
Tractors with this system must have a shuttle valve installed in the load sense line to be
compatible with the 3PYP. The shuttle valve is required to determine which component
requires and receives hydraulic pressure. Order and install load sense shuttle valve kit
401-715A, instructions are included in the kit. Once the load sense shuttle valve kit is
installed, then the case drain, motor return, and power beyond pressure connections can
be tee’d to add connections.
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LS Closed with Load Sense By-Passed
If the load sense has been internally by-passed, then the load sense line on the planter
steering manifold must be removed and the port must be plugged. See Removing Planter
Steering Manifold Load Sense Line in this guide. Consult a tractor dealer for verification
if the load sense has been internally by-passed. Case drain, motor return, and power
beyond pressure can be tee’d. This system will not utilize a load sense connection.
PC Closed Hydraulic System
This tractor hydraulic system will not have a load sense connection. The load sense line
on the planter steering manifold must be removed and the port must be plugged. See
Removing Planter Steering Manifold Load Sense Line in this guide. Case drain, motor
return, and power beyond pressure can be tee’d to add connections.
load sense
shuttle valve kit
P/N 401-715A
planter steering
manifold load
sense line
to tractor load sense
to other auxiliary function