Great Plains 3PYP Operator Manual - Manual (Page 21)

Great Plains Manufacturing, Inc. Table of Contents Index Preparation and Setup 17
2014-09-09 Table of Contents Index 401-312M
Older Style Hoses with Color Ties
Refer to Figure 9
Great Plains hydraulic hoses are color coded to help you
hookup hoses to your tractor outlets. Hoses that go to
the same remote valve are marked with the same color
tie.
To distinguish hoses on the same hydraulic circuit, refer
to plastic hose label. The hose under an
extended-cylinder symbol feeds a cylinder base end. The
hose under a retracted-cylinder symbol feeds a cylinder
rod end.
For hydraulic fan and drive motors, connect the hose
under the retracted cylinder symbol to the pressure side
of the motor. Connect the hose under the extended
cylinder symbol to the return side of the motor.
Protecting Hydraulic Motor Seals
Low Pressure (Case) Drain Connection
1. Attach case drain hose to low pressure drain
connection.
2. Connect low pressure return hose to low pressure
return connector.
3. Connect hydraulic hoses to tractor remotes.
Color Hydraulic Function
Steering (no color code)
Orange Fan
White Wing Fold / Marker Tilt/Fold
Blue Lift / Down Pressure
Yellow Hydraulic Drive
Motor Seal Damage Risk:
Case Drain Hose must be attached first,
prior to inlet and return hoses being connected.
Case Drain Hose must be detached last,
to prevent damage to the fan motor.
Case drain hose must be hooked up first and unhooked
last to prevent damage to hydraulic motor seals.
Hydraulic Motor Performance Risk:
DO NOT connect the case drain line to a
power-beyond-port.
Figure 9
Older Style Hoses with Label
817-348c
17641