| Symptom | Problem | Solution |
|
Depth control does not function correctly
| Implement transport lock-up valve closed |
Open valve
|
| |
Cylinders not ”rephased” (synchronized)
|
”Rephase”
(synchronize) cylinders
IMPORTANT: Be sure all air is bled from depth control system
|
| |
Machine operating at different depths
|
Hard ground or adverse
operating conditions
See implement operator's manual
|
| |
Cylinder leakage
|
Check for leakage
Repair or replace cylinders; see your John Deere™ dealer
|
| |
Insufficient tractor hydraulic pressure
|
Check tractor hydraulic
pressure; use correct size cylinders for tractor pressure
|
| |
Hydraulic hoses not connected correctly
|
Reconnect correctly
|