Great Plains 3PNG15 Operator Manual - Manual (Page 23)

Great Plains Manufacturing, Inc. Operating Instructions 19
10/06/2008 202-553M
Shaft Monitor Operation
The optional shaft monitor generates an alarm if the
main seed box meter shaft on the drill stops turning for
more than 30 seconds. On the 3PNG15, the shaft has
two coupled sections. In the event of coupler failure, it is
possible for one section to independently stop turning.
Refer to Figure 8
Turn system on by activating on-off switch
on monitor
head. If seed-cup shafts are turning, both indicator lights
are illuminated and no alarm sounds.
If any seed-cup shaft stops for 30 seconds, an alarm
sounds and the indicator for that section flashes on the
monitor, designating the failed shaft.
Note: The 30-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, re-
member you have traveled for 30 seconds without
planting under the stopped shaft. If due to wheel lift
or low tire pressure, you may have been planting at
progressively lower populations before that.
Parking
Perform the following if parking for 36 hours or less.
Refer to “Storage” to prepare for longer-term storage.
1. Position drill on a level, solid area.
Refer to Figure 8
2.
Unpin and rotate the parking stands down into the
parking position. Replace pins as shown. If the
ground is soft, place a board under the parking stand
to increase ground contact area.
3. Lower drill to ground.
4. Set marker circuit(s) (optional) to float, and discon-
nect hydraulic lines.
5. Disconnect lighting harness and shaft monitor har-
ness (optional).
6. Extend or retract the top link until the top 3-point pin
is free. Remove the pin.
7. Remove pins from the lower links.
Figure 8
Shaft Monitor Head
27049
1
2
1
2
Figure 9
Parking Stand
12151
U
D
B
F
F
L