Great Plains PM300 Assembly Instructions - Manual (Page 9)

Great Plains Mfg., Inc. 9
116-008M 2/5/13
AE6690 AC TUAT OR TEST BO X SN : XXXXX 1
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Diagnostic Kit Applications for Air Drills With IntelliAg
All functions of the Diagnostic Kit covered in the previous pages can also be performed on any
Great Plains Air Drill that has the DICKEY-john IntelliAg monitoring system.
The Actuator Test Box (part # AE6690) can be used on air drills that have the
variable rate linear actuators installed. The drill harness must be electrically con-
nected to the tractor for the switchbox to function. If this is not possible, another
12VDC power supply needs to be connected to the tower connector of the test
box harness (connector with only two wires). Pin A of this connection is power
and pin B is ground.
Actuator Test Box -
for testing air drill linear actuators
Refer to Figure 12
1. Locate the harness coming out of the linear
actuator. Follow this harness until the
actuator driver is found. The actuator
driver has a second lead coming out of it that
leads to a six pin weather pack connector and
is connected to one of two mating connectors
on the working set master harness. If
working on a drill with two actuators, the
front driver should be connected to the plug
labeled “Front Zero”, and the rear driver
should be connected to the plug labeled
“Rear Zero”.
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2. Disconnect the drivers’ six pin connector from
the working set master harness and install the
Actuator Test Box onto the now open plugs.
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3. The Actuator Test Box contains a spring centered momentary switch. Moving the switch to
one side or the other will cause the actuator to either extend or retract. When the switch is
released, it will re-center itself and stop actuator motion.
DO NOT USE THIS TOOL AS A
REPLACEMENT FOR VARIABLE RATE CONTROL DURING SEEDING!
Fig. 12
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