
2019-03-08
196-359M
3N-4010F, 3N-4010HDF, and 3N-4020F
Operating Instructions
32
Marker Operation (Option)
Markers are on a separate hydraulic circuit on the drill.
Before operating markers, make sure they are properly
bled as described in “
Dual markers are equipped with a sequence valve to
control lift sequence. Starting with both markers up, the
sequence is:
1. Activate tractor hydraulic lever; right marker lowers
while left marker stays up.
2. Reverse hydraulic lever; right marker raises while left
marker stays up.
3. Activate hydraulic lever; left marker lowers while
right marker stays up.
4. Reverse hydraulic lever; left marker raises while right
marker stays up.
5. Pattern repeats.
Folding speed of dual markers is adjusted with
adjustment screws on sequence valve body. Because
excessive folding speed may damage markers, adjust
markers to a safe folding speed according to “
To get both markers in the lowered position at the
same time, activate hydraulic lever to lower one
marker. After marker is lowered, move lever to
opposite position then quickly reverse lever and hold
until other marker is lowered.
Shaft Monitor Operation (Option)
To operate the optional shaft monitor, turn the system on
via the ON-OFF switch.
During normal movement, the indicator lamps for each
section are on steady, indicating that shaft rotation is
detected.
If the seed-cup shaft stops for 30 seconds or more, an
alarm sounds and the lamp for the affected section
flashes.
The 30-second delay is to prevent nuisance alarms when
turning at the end of passes.
If a shaft failure does occur, remember that you have
traveled for 30 seconds without planting under the
affected section.
For installation, see:
For ordering information, see:
Figure 33
Shaft Monitor Console
18943
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3
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