Make hydraulic connections, Color coded hose handles – Great Plains ADC2220 Assembly Instructions User Manual
Page 17
Great Plains Manufacturing, Inc.
Setup
15
2012-08-17
167-088M
Make 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 drill 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.
Color Coded Hose Handles
Refer to Figure 10
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. Hoses that go to the same remote valve are
marked with the same color.
6.
Make sure all tractor levers are in neutral or float, or
tractor hydraulics are off, before making connections.
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
Pump Damage Risk:
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.
Fan Motor Damage Risk:
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 10
Color Coded Hose Grips
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