Great Plains CTA4000 HD Operator Manual - Manual (Page 22)

18 CTA4000HD Great Plains Manufacturing, Inc.
160-037M 2012-11-28
Make ADC2220/1150 Hydraulic Connections
High Pressure Fluid Hazard:
Only trained personnel should work on system hydraulics!
Escaping fluid under pressure can penetrate the skin causing
serious injury. Check all hydraulic lines and fittings before
applying pressure. Use paper or cardboard, NOT BODY
PARTS, to check for suspected 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.
The air cart itself consumes hydraulic power for one or
two circuits, and has a low pressure sump return line.
The cart also passes through three circuits necessary for
drill operations.
Current Style Color Coded Hose Handles
Refer to Figure 13
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.
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.
Hose connections are also passed through to a rear
panel when the air cart leads the drill. Hoses that go to
the same remote valve are marked with the same color.
1. Make sure all tractor levers are in neutral or float, or
tractor hydraulics are off, before making connections.
Carts Y1077 and Earlier
Air carts serial number Y1077 and earlier have different
hydraulic connections. See Appendix in Air Drill Cart
manual 167-073M.
Carts Y1078 and Later
See “Y1078+ Hydraulic Connections” on page 19.
Color
Code
Hydraulic Function
on Cart on Drill
(decal)
SUMP return (available)
Black Hydraulic Fan
(Extend side only)
Fold Cylinders
(ADI & NTA only)
Blue Lift Cylinders
Green
Auger
Fold (ADI only)
Marker Cylinders
For CTA implements, some tractors require an auxiliary flow
kit to prevent damage to the hydraulic pump. Contact a factory
trained service technician before hooking to cart and CTA
implement.
The hose and large connector labeled sump refers to high
volume hydraulic motor return and should always be
connected to the port on the tractor capable of handling high
volume low pressure return oil. DO NOT connect this line to
low volume case drain lines or low volume sump lines on the
tractor. See tractor manufacturer’s recommendations for high
volume hydraulic motor return.
Figure 13
Color Coded Hose Grips
31733