6-2
ARC-6000
98-05012
R3
C. Position the sprayer
1. Set the Mode Selector switch back to
“ OPERATE” .
2. Drive toward the desired swath, accelerating
to normal application speed (as close as
possible to the GSO speed value).
D. Start Spraying
1. As the vehicle reaches the start of the desired
swath, turn on booms and begin applying.
2. Ensure that the GSO Switch is ON if present.
E. The control console controls the application as if
the vehicle is moving at the established GSO
speed. The actual accuracy of application there-
fore depends upon the ability of the operator to
maintain the desired vehicle speed. If the vehicle
is traveling at exactly the established GSO speed,
the application is nearly exact. If the vehicle is
traveling faster or slower than the established GSO
speed, the system will be over or under applying
accordingly.
F. The console still records the Total Applied, and the
system still adjusts to changes in boom width.
These functions can be monitored on the display.
G. The ARC display flashes a Too Slow message, and
an audible alarm sounds, to indicate abnormal
operation. There is no speed displayed. Areas do
not accumulate and displayed Application Rate
information is meaningless.
Flow control Valve Failure
T
he ARC System can be operated, at a
reduced level of control, in the event of a
flow control valve failure. To operate the
sprayer, it is necessary to manually adjust the flow
control valve so that sufficient pressure is available to
the booms to give a good spray pattern. Thus, there is
no longer positive control over the flow. Use the
following procedure to manually position the flow
control valve.
Mid-Tech
MID-TECH recom-
mends this procedure as
a temporary, emergency
procedure only. The
problem should be
resolved as soon as
possible to allow full
automatic control of the
sprayer to be reestab-
lished.
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