Great Plains 3S-4000HDF Predelivery Manual - Manual (Page 20)

18 3S-4000HD
195-067Q 12/10/2009
Hydraulic Hose Hookup
Only trained personnel should work on system hydraulics!
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,
see a doctor immediately. Any fluid injected into the skin must
be surgically removed within a few hours or gangrene will
result.
Refer to Figure 23
To distinguish hoses on the same hydraulic circuit, refer
to plastic hose label. The hose under an extended-cylin-
der symbol feeds a cylinder base end. The hose under a
retracted-cylinder symbol feeds a cylinder rod end.
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.
1. Connect opener-lift hoses to circuit designated for
hydraulic-motor control.
2. Connect transport-lift hoses to tractor remote valve.
3. Connect fold hoses to tractor remote valve.
4. Connect marker hoses to tractor remote valve.
Note: If the tractor has only two remote valves, you must
install a double-selector valve to combine the
transport-lift and opener-lift circuits. See “Two
Outlet Kit” on page 13.
Color Hydraulic Function
Red Opener Lift Cylinders
Blue Transport Lift Cylinders
White Fold Cylinders
Orange Marker Cylinders
IMPORTANT !
To run drill on tractors with open-center hydraulics or
on tractors with fixed-displacement hydraulic pumps,
you must install a Great Plains kit, part number 194-
143A. See “Open Center Conversion” on page 14.
Figure 23
Plastic Hose Label
817-348c
17641