Great Plains YP2425A Operator Manual - Manual (Page 18)

14 YP2425A Table of Contents Index Great Plains Manufacturing, Inc.
401-626M Table of Contents Index 2014-02-10
Hitching Tractor to Planter
Crushing Hazard:
Do not stand or place any part of your body between planter
and moving tractor. You may be severely injured or killed by
being crushed between the tractor and planter. Stop tractor
engine and set park brake before attaching cables and hoses.
Hydraulic Hose Hookup
High Pressure Fluid Hazard:
Relieve pressure before disconnecting hydraulic lines.
Escaping fluid under pressure can have sufficient pressure to
penetrate the skin causing serious injury. 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 attention from a physician familiar with this type of
injury.
Refer to Figure 3
Great Plains hydraulic hoses have 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
Gray Wing Fold / Marker Fold / Auxiliary
Blue Lift / (and Hitch if hydraulic tongue)
Black Fan
Yellow Hydraulic Drive
Figure 3
Color Coded Hose Handles
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