Operating Manual

69
OPERATION
Valve heating
To ensure safe operation of the valves
irrespective of ambient temperature, the valves
are preheated when the engine is started.
Operation_Pic_number:1
When the heating function is active, the symbol
(A) appears.
17.5 Priority function
Text-module
The priority function divides the available hy-
draulic oil to the four valves.
If more than one control unit is operated simulta-
neously and the oil quantity requirement ex-
ceeds the maximum oil quantity, the oil quantity
of all participating control units is reduced per-
centually.
Priority valve function.
The proportional distribution can be deactivated
for one control unit. The valve always receives
oil quantity first displaced. If more oil is available,
it is distributed proportionally to all other consu-
mers.
Activating the priority function for
one valve
Calling up the sub-menu for setting valves.
Operation_Pic_number:1
● Press key (F3). The following valve setting
submenu appears.
Fig.125
Fig.126
Operation_Pic_number:1
This window gives an overview of the individual
valve settings.
Coloured display (A) of prioritised valve
(appears if one valve is prioritised).
● Press key (F1 - F4) for the valve that is to be
set. The following valve setting sub-menu ap-
pears.
Operation_Pic_number:1
● The valve priority function is activated / deac-
tivated with key F4.
Text-module
Symbol (A) is displayed as shown if valve priority
is active.
Symbol (A) is displayed CROSSED OUT if valve
priority is not active.
Text-module
Example application:
When operating a hydraulically driven sowing
machine, the engine should be operated at a
constant speed.
Fig.127
Fig.128