Great Plains DVN8552 Operator Manual - Manual (Page 26)

550-353M 2014-02-12
22 8321-8552DV Table of Contents Index Great Plains Manufacturing, Inc.
Troubleshooting
Discovator Trouble Shooting Charts
General Performance
Problem Cause Solution
Rear
Shanks
Leaving
Groove Rear of machine running too deep.
Coulter/disc gangs too deep.
Drag set incorrectly.
Operating machine too fast.
Level machine from front to rear with turnbuckle, See
“Pre-Leveling of Machine” on page 14
Raise disc gangs.
Reset drag, See “Rear Attachment Settings” on
page 18.
Slow down (6-7 m/h)/(9-11 km/h).
Leaving
Ridges On
The Outside Wings not level.
Lift cylinders out of phase.
Leaking wing lift cylinder.
Drag set Incorrectly.
Operating machine too fast.
Adjust eyebolt at rear of wing cylinders to level wings.
See “Side to Side Leveling” on page 15.
Rephase lift cylinders.
Repair or replace leaky cylinder, See pages 34-37 of
“Parts Manual”.
Reset drag, See “Rear Attachment Settings” on
page 18.
Slow down (6-7 m/h)/(9-11 km/h)
Wings Not
Penetrating Wings not level.
Coulter/disc gangs too deep.
Wing gangs deeper than center gangs.
Fold cylinder nor fully extended.
Adjust eyebolt at rear of wing cylinders to level wings.
See “Side to Side Leveling” on page 15.
Raise disc gangs.
Rephase gang circuit.
Fully extend cylinders.
One Wing
Running
Deeper
Than The
Other Wings not level.
Leaking wing lift cylinder.
Wing cylinder in wrong sequence.
Improper tire pressure.
Adjust eyebolt at rear of wing cylinders to level wings.
See “Side to Side Leveling” on page 15.
Repair or replace leaky cylinder, See pages 34-37 of
“Parts Manual”.
Repair or replace leaky cylinder, See pages 26-27 of
“Parts Manual”.
Set air pressure, See “Tire Inflation and Warranty” on
page 26.
Both Wings
Running
Too Deep Wings not level.
Improper tire pressure. Adjust eyebolt at rear of wing cylinders to level wings.
See “Side to Side Leveling” on page 15.
Set air pressure, See “Tire Inflation and Warranty” on
page 26.
Whole
Machine
Runs
Deeper Leaking depth stop cartridge.
Leaking master lift cylinder. Replace cartridge.
Repair or replace leaky cylinder, See pages 26-27 of
“Parts Manual”.
Center &
One Wing
Run Deeper Leaking master lift cylinder. Repair or replace leaky cylinder, See pages 26-27 of
“Parts Manual”.