IV.
OPERATING SYSTEMS
4.18
B. HYDROSTATIC DRIVE SYSTEM
ACE: AUTOMATICALLY CONTROLLED ENGINE-
1. Speed ranges are selected by a red (decrease speed range) and green (increase speed range) electronic
switch mounted on the hydrostatic lever (fig. 4.18-1, item A). The lower the setting, the higher the torque,
but the lower the speed.
2. Increase the engine one bump to gain RPM of 1800 with
the throttle switch (fig. 4.18-2). More RPM will be gained as
you move the hydrostatic lever forward.
3. To move forward, slowly push the hydrostatic lever forward. The farther the control lever is moved, the
faster the sprayer will travel and the RPM ‘s will increase (fig. 4.18-3). To stop, slowly pull the lever to the
“N” neutral position.
4. To reverse the machine, slowly pull the hydrostatic 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.
SPEED CONTROL–
Speed control may be adjusted with the
speed control dial (fig. 4.18-4) This will conveniently help regain consis-
tent field speeds when re-entering a field from the end rows.
To set a speed limit, start with the engine at one bump on the throttle
switch or 1800 RPM ‘s and speed control dial all the way counterclock-
wise. Push the hydrostatic lever all the way forward. Now turn the speed
control clockwise while observing ground speed and stop turning the dial
when the desired ground speed is reached. Now your maximum field speed is set and you simply reposition
the handle all the way forward to regain that speed.
FIG. 4.18-4
NOTE:
Machine will not shift down until highest
speed of desired range is met.
FIG. 4.18-1
A
FIG. 4.18-2
FIG. 4.18-3
