Great Plains 3S-4000HDF Operator Manual - Manual (Page 49)

Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 45
2013-06-13 Table of Contents Index 195-067M
Shaft Monitor Operation
The optional shaft monitor generates an alarm if any one
or more of the three meter shafts on the drill stop turning
for more than 20 seconds (on the current Loup monitor).
Refer to Figure 41
To operate shaft monitor, turn system on by activating
on-off switch
on monitor head. If seed-cup shafts are
turning, all three indicator lights are illuminated and no
alarm sounds.
If any seed-cup shaft stops for 20 seconds, an alarm
sounds and the indicator for that section flashes on the
monitor, designating the failed shaft.
Note: The 20 second delay is to prevent nuisance alarms
when turning at the end of the field.
Note: If a failure does occur and an alarm sounds,
remember you have traveled for 20 seconds
without planting with that drill section. If due to
wheel lift or low tire pressure, you may have been
planting at progressively lower populations before
that.
Note: The dwell time on the older Vansco monitor is
30 seconds.
Acremeter Installation (S/N YY1736+)
Refer to Figure 42
The acremeter (S/N YY1736+) is factory installed. It is
located on the left end of the center main drive shaft .
If the acremeter has been removed, screw the threaded
end of the meter into the
1 ⁄
2
-20 tapped hole in the left
end of center main drive shaft.
Tighten the threaded end only enough to prevent it from
working loose from normal vibration. In use, there is no
torque or tension that might tend to unscrew it.
The acremeter counts shaft rotations whenever the shaft
is rotating - normally this is only with the drill unfolded,
the opener sub-frame lowered, and the drill in motion.
The meter is geared to display rotations as acres, when
using factory-specified tires and inflations.
Tally field acres by noting the meter reading prior to, and
after planting. Subtract the starting from the ending
readings.
Figure 41
Shaft Monitor Head
18943
1
2
1
Figure 42
Electronic Acremeter
(S/N YY1736+)
27000
2 1
1
2
2