Great Plains 1205NT Operator Manual - Manual (Page 20)

1205NT
150-131M 3/28/12
18
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.