Great-plains 606NT Predelivery Manual User Manual download pdf (Page 10)

605NT and 606NT

151-061Q

8/19/2009

Hydraulic Hose Hookup

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.

To distinguish hoses on the same hydraulic circuit,

refer to plastic hose label. Hose under extended-

cylinder symbol feeds cylinder base ends. Hose

under retracted-cylinder symbol feeds cylinder

rod ends.

Rephasing Cylinders

The lift cylinders may, after a period of time, get

out of time or phase. The effects of this can be

seen when one side of the drill is running too low

or too high because its lift cylinder is either over

extended or not retracted compared to the other

lift cylinder.

To rephase the cylinders, raise drill completely

and hold tractor hydraulic lever on for a few sec-

onds to give cylinders time to rephase.

Each time drill is raised out of ground momentarily

reverse hydraulic lever immediately after rephas-

ing to allow cylinders to retract about 1/2 inch.

This will help in maintaining a level drill.

NOTE: Understand that having cylinders become

gradually out of time is different than having air

trapped in the system from improper bleeding.

Each condition is corrected differently.

Bleeding Hydraulics

WARNING

Escaping ﬂuid under pressure can have sufﬁcient pres-

sure to penetrate the skin. Check all hydraulic lines

and ﬁttings before applying pressure. Fluid escaping

from a very small hole can be almost invisible. Use pa-

per or cardboard, not body parts, and wear heavy

gloves to check for suspected leaks. If injured, seek

medical assistance from a doctor that is familiar with

this type of injury. Foreign ﬂuids in the tissue must be

surgically removed within a few hours or gangrene

will result.

Color Hydraulic Function

Blue Transport Lift Cylinders

Figure 6

Plastic Hose Label

17641

Plastic

hose label

1 2 ... 5 6 7 8 9 10 11 12 13 14

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Great-plains 606NT Predelivery Manual User Manual Page 10

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