MAC/MTT-OPS-1
26 FEB 2019
SECTION 2
System Description
2-16
PAUSE – Turning this switch ON will pause all
spray system functions. Once this switch is
turned OFF, spray system functions will resume
operation. If the distance-based AUTO mode is
active, spray head functions will resume beginning
with a dry patch.
INTMNT
– When the AUTO switch is OFF,
turning the INTMNT switch ON activates the
Intermittent Mode, in which spray head and
dump bar functions are controlled manually by
adjustment of the F1 and F2 dials.
When the AUTO switch is ON, turning the INTMNT
switch ON activates the distance-based checker-
boarding version of GPS Auto Mode. More details
on this mode can be found under “Ground Speed
Sensing (AUTO MODE)” on page 18.
Intermittent Mode
In intermittent mode, spray system functions are
controlled by the F1 and F2 dials. Intermittent
mode will only operate if at least 1 discharge
function (spray head or dump bar) switch is
activated. Water discharge can be stopped at any
time when in intermittent mode by turning
discharge function switches OFF.
The F1 and F2 adjustable dials set the timing as
follows:
• F1
– Adjusts spray head ON time in seconds.
• F2
– Adjusts spray head OFF time in seconds.
The relationship between dial rotation and ON/
OFF time is as follows:
–
ZERO TO 3 O’CLOCK POSITION: 3 sec to 15 sec
– 3
O’CLOCK TO MAX POSITION: 15 sec to 30 sec
The intermittent mode will turn selected spray
heads or dump bar on and off. When a selected
function switch (spray head or dump bar) is
operating during an ON cycle, the selected
function switch LED will be illuminated as well as
the Intermittent switch LED. When INTMNT cycles
to an OFF cycle, the INTMNT switch and function
switch LEDs will extinguish. As the ON cycle is
about ready to engage, the INTMNT switch LED
will flash 3 times to indicate the selected spray
functions are about to be turned ON.
W
ATER LEVEL INDICATOR – Indicates tank
water level. When the red EMPTY LED
light flashes, the tank is at minimum
water level, and the water pump low
water protection feature will be
activated, as previously described on
page 10. Water pump operation can only
be restored if the tank is above the
minimum water level.
• In order to re-activate the water pump after
low-water shut-off, first fill the water tank with
sufficient water capacity to permit pump oper-
ation. Then cycle the PUMP switch OFF/ON.
• Certain terrains and water level fluctuations
may allow low water protection to capture a
low water level condition, causing the pump to
slow to a stop. If conditions allow water pump
activation after water level/terrain fluctuations
have ceased, then the water pump may be re-
activated by cycling the PUMP switch OFF/ON.
Pressure Discharge Function Descriptions
S
PRAY HEADS – Spray head
switches control the opening
and closing of the associated spray head valve. The
opening and closing of the associated valves is
automatically controlled according to the F1 and
F2 dial settings when INTMNT or AUTO mode is
active.
D
UMP BAR (PRESSURE) – Controls opening or
closing of the dump bar BFV when
selected, or automatically controlled when
INTMNT or GPS function is selected.
S
UCTION LOAD (AUX 2) – See “AUX 2”
description.
3s - 15s
zero
max
15s - 30s
3 o’clock
3 o’clock
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