Kverneland Electrical Control EC, Operation Manual

Page: 64 / 69

Electrical Control GZD-EC
OPERATING INSTRUCTIONS
64
§8.2 S
PRAYING FUNCTIONS
The following spraying functions can be electrically remote controlled on the control box (fig. 3):
Central switch “Spraying” On/Off (6)
When the central switch (6) (fig. 3) is operated, the main valve (13) (fig. 4) is opening or
closing the liquid supply to the sections (Switch upwards = valve is open).
The sections opened by the section valves (i) are now supplied with spraying liquid (fig. 4).
Switch for pressure adju/- (5)
When the switch is operated (5) (fig. 3) the pressure regulation motor (12) (fig. 4) is
actuated in the direction in question (
+ or - ) as long as the switch (3) is held down. The
spraying pressure (bar) can thus be altered manually. The actual spraying pressure can be
read of the manometer (11) on the machine (fig. 4).
Attention: The desired spraying pressure has to be set while spraying (central switch
spraying "
On ")
§8.3 H
YDRAULIC FUNCTIONS
The lower field of the control box contains the switches (7 – 10) for the hydraulic functions of the
spray boom (fig. 3).
The hydraulic functions are operated by a hydraulic system with pre-selection switching. This
system is characterised by:
- On the tractor side, only 1 single-acting and 1 double-acting hydraulic ventil is necessary.
- With the single-acting hydraulic ventil the height adjustment of the spray boom is performed.
- All the double-acting hydraulic functions are pre-selected via the corresponding toggle switch
on the control box (switches 7 – 10, fig. 3) and implemented via a double-acting control
appliance on the tractor.
- The direction of operation of the hydraulic ventil decides on the direction of operation of the
function implemented.