22
IV.
OPERATING INFORMATION
HYDROSTATIC SYSTEM
1. Speed ranges are selected by a three-position electronic
switch mounted on the console (fig. 4.03, item 1). The lower
the setting, the higher the torque, but the lower the speed.
2. Increase engine RPM with the throttle switch (fig. 4.03, item
2) to the maximum recommended engine speed setting.
3. To move forward, slowly push the hydrostatic control
lever (fig. 4.04) forward. The farther the control lever is
moved, the faster the sprayer will travel. To stop,
slowly pull the lever to the “N” (neutral) position.
4. To reverse the machine, slowly pull the hydrostatic
control lever back. To stop, slowly push the lever to the
“N” (neutral) position.
5. Before turning off the engine, reduce engine speed and
allow the engine to idle at least three minutes.
Cruise Control
The maximum speed of the hydrostatic control lever
may be adjusted with the cruise control dial (fig. 4.04). This
will conveniently help regain consistent field speeds when
reentering a field from the end rows.
To set a cruise limit, start with the engine at maximum
recommended throttle and cruise control dial all the way
down (counterclockwise). Push the hydrostatic control lever
all the way forward. Now turn the cruise control dial up
while observing the ground speed and stop turning the dial
when the desired field speed is reached. Now your maxi-
mum field speed is set and you simply reposition the han-
dle all the way forward to regain that speed.
NOTE:
Never operate the sprayer at anything
less than full recommended throttle.
Hydrostatic Drive
FIG 4.04
FIG 4.03
1
2
Summary of Contents for STS12
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