12 and 16 Row Markers
IMPORTANT: Before performing any of these checks, verify hydraulic
SCVs are set to maximum flow, frame control console has power (backlight
is on), cleanout switch is set to “Plant” position, and
the proper buttons are pushed for the desired function .
| Symptom | Problem | Solution |
|
Marker floats off ground.
| Machine not down. |
Machine must be fully
lowered for proper marker operation.
|
|
Markers not alternating in automatic mode.
| Marker alternating switch on wheel module seven out
of adjustment. |
Fully raise machine
and check marker alternating switch adjustment. See ADJUST MARKER
ALTERNATING SWITCH in Service and Adjustments section.
|
|
Left marker lowers when not selected.
| Valve S5 stuck open. |
Check for 12 volts at
solenoid.
Check solenoid.
|
|
Right marker lowers when not selected.
| Valve S6 stuck open. |
Check for 12 volts at
solenoid.
Check solenoid.
|
|
Left marker will not lower.
| No power to control box. |
Check seven pin connector.
Check in-line fuses.
|
| |
Valve S5 not energized.
|
Check for 12 volts at
solenoid.
Check solenoid.
|
| |
Valve S5 is stuck closed.
|
Clean or replace valve.
|
| |
Check position of switches on frame control box.
|
Activate correct switches.
|
| |
Check frame fold switch in pivot area.
|
Broken wires.
Carrier damaged or jammed.
|
|
Right marker will not lower.
| No power to control box. |
Check seven pin connector.
Check inline fuses.
|
| |
Valve S6 not energized.
|
Check for 12 volts at
solenoid.
Check solenoid.
|
| |
Valve S6 is stuck closed.
|
Clean or replace valve.
|
| |
Check position of switches on frame control box.
|
Activate correct switches.
|
| |
Check frame fold switch in pivot area.
|
Wires damaged or cut.
Carrier jammed.
|
|
Marker lowers and disk blade is forced into the ground.
| Marker cylinder is not floating in J-slot. |
Lengthen marker hydraulic
hoses.
|
|
Marker operating too fast.
| Verify that there is an orifice fitting in the rod end
of the cylinder. |
Install orifice fitting
in rod end of the cylinder.
|
| |
Air in hydraulic system.
|
Disconnect and cycle
cylinder to eliminate air.
|
|
Shear bolt shears too often.
| Marker disk angle too aggressive. |
Reduce angle of marker
disk blade. See ADJUST MARKER DISK in Service and Adjustments section.
|
|
Cannot see marker mark in field.
| Marker disk angle not aggressive enough. |
Increase angle of marker
disk blade. See ADJUST MARKER DISK in Service and Adjustments section.
|
|
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OUO6435,0001F58-19-20090515
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