Great Plains 3PYP Operator Manual - Manual (Page 20)

16 3PYP Table of Contents Index Great Plains Manufacturing, Inc.
401-312M Table of Contents Index 2014-09-09
Hydraulic Hose Hookup
Only trained personnel should work on system hydraulics!
High Pressure Fluid Hazard:
Escaping fluid under pressure can have sufficient pressure to
penetrate the skin causing serious injury. Avoid the hazard by
relieving pressure before disconnecting hydraulic lines. Use a
piece of paper or cardboard, NOT BODY PARTS, to check for
leaks. Wear protective gloves and safety glasses or goggles
when working with hydraulic systems. If an accident occurs,
seek immediate medical assistance from a physician familiar
with this type of injury.
Refer to Figure 8
Great Plains hydraulic hoses are color coded handle
grips to help you hookup hoses to your tractor outlets.
Hoses that go to the same remote valve are marked with
the same color.
Current Style Color Coded Hose Handles
To distinguish hoses on the same hydraulic circuit, refer
to the symbol molded into the handle grip. Hoses with an
extended-cylinder symbol feed cylinder base ends.
Hoses with a retracted-cylinder symbol feed cylinder rod
ends.
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.
The fan motor further requires hookup of a third line,
which returns hydraulic fluid from the fan motor case.
Color Hydraulic Function
Steering (no color code)
Black Fan
Green Wing Fold / Marker Tilt/Fold
Blue Lift / Down Pressure
Yellow Hydraulic Drive
Figure 8
Color Coded Hose Handles 31733