Adjustment Of Constant Pressure - Hardi EAGLE 3PT Boom Operator's Manual

8.5 Adjustment of Constant Pressure

Note: Adjust the constant distribution boom pressure one section at a
1. Shut-off the first boom distribution valve switch (B) (Fig.33).
2. Turn the adjusting screw (1) (Fig. 32) until the control unit pressure
gauge (7) (Fig. 32) again shows the same pressure as set in step 6
above. (Turn the screw clockwise for higher pressure,
counterclockwise for lower pressure).
3. Turn the first boom distribution valve switch (B) (Fig. 33) back on.
4. Repeat steps 7 through 9 for the remaining boom distribution
valves.
Note: Hereafter adjustment of the constant boom pressure will only be
5. Operating the EC control unit while driving: In order to shut off the
entire boom activate on-off switch (A) (Fig.33). This returns all the
pump outputs to the tank through the return system. The diaphragm
anti-drip valves ensures instantaneous closing of all nozzles.
In order to shut off one or more sections of the boom, switch one or
more unneeded boom distribution valves (B) (Fig.33) to off position.
The constant pressure device ensures that the pressure does not
increase in the sections which are still operating.
In case of electrical failure it is still possible to manually overide all
functions of the operating unit. To operate manually, disconnect the
multiplug from the EC control box first and operate the handles by
hand. It is possible to change pressure, turn boom sections on or off,
or shut off the complete control unit manually.
IMPORTANT: When the sprayer is stored, the EC control box and
50
time as follows: (Start with the valve turned closed before
adjusting).
needed if you change to nozzles with other capacities, but not
required if only changing pressure or application rate using the
same nozzles.
the multiplug must be protected against moisture
and dirt. A plastic bag may be used to protect the
multiplug. Store the control box in a clean dry place.
HARDI ® EAGLE 3PT BOOM OPERATORS MANUAL