67
5 - Operation
CA operating unit
The section valves are operated from the switch box in the tractor
cabin. Turn the switch towards the drawing of nozzles and spray liquid
flows in the section. The pressure is set by pushing the switch with +
and minus symbols, plus is more pressure and so forth.
Adjustment of pressure equalisation 2
Set the pressure to e.g. 4 bar, by turning the hand wheel 5
Open all section valves. Close now one section, if the pressure change,
turn it backs to 4 bars, by increasing or decreasing on the reed hand
wheel 3, turn it left or right in order to obtain pressure equalisation.
Cleaning the pressure filter 4
Stop the tractor engine. Unscrew they filter by turning left. Wash the
filter in soap water, put it back in to the filter body and fit it to the
operating unit.
SB 3012 or SB 3014 etc.
Are the control boxes for motorised operating units The operating unit
CB2 CB4 etc.
A constant pressure operating unit, allows to turn off one section, and
maintain the pressure constant.
1. Section valves
When up = off
When down = on
2. Pressure up & down, - for less pressure and + for higher
pressure.
FB 3610
F0. Main Switch valves section
F1-F3 / F2-F4. Fluid sections: Odd on left / Even on right
S1-S2 / S3-S4. Hydraulic selectors
P+ / P-. PRESSURE Regu & -
STB. ON / OFF
1
1
1
1
2
4
1
1
3
5
2
F3
F1
S1
F0
F2
F4
STB
P+
P-
S4
S2
S3
Summary of Contents for ZENIT 400
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