ARAG 463 Series Quick start guide

463 - 464 - 465 - 471 SERIES
MANUAL CONTROL UNIT
FOR CROP-SPRAYING APPLICATIONS
02
INSTALLATION, USE AND MAINTENANCE

This manual is an integral part of the equipment to which it refers and must accompany the equipment in
case of sale or change of ownership. Keep it for future reference; ARAG reserves the right to modify the
specications and instructions regarding the product at any time and without prior notice.
CONTENTS
• Legend symbols .............................................................................................................................. 2
1 Product description............................................................................................................................. 3
1.1 Intended use ............................................................................................................................. 3
2 Functioning of the product.................................................................................................................. 4
2.1 Composition of the manual control units...................................................................................... 4
2.1.1 Manual control units with 471 SERIES main control valve ......................................................... 4
2.1.2 Manual control units with 464 SERIES main control valve ......................................................... 5
2.2 Functions of components .......................................................................................................... 6
3 Installation .......................................................................................................................................... 7
3.1 Safety regulations...................................................................................................................... 7
3.2 Installing and connecting the unit................................................................................................ 8
3.3 Connecting up the system.......................................................................................................... 9
4 Settings before use ............................................................................................................................11
4.1 Adjustments of the manual unit prior to operation .......................................................................11
4.2 Adjustment of maximum operating pressure (only applicable for units with proportional ...................
valve) 13
5 Use .................................................................................................................................................... 14
5.1 Calibration of operating pressure .............................................................................................. 14
5.2 Calibration of compensation cocks (calibrated backflows) .......................................................... 15
6 Maintenance / diagnostics / repairs .................................................................................................. 16
6.1 Cleaning the manual control units............................................................................................. 16
6.2 Cleaning the filters................................................................................................................... 17
6.2.1 Manual cleaning ................................................................................................................... 17
6.2.2 Automatic cleaning of self-cleaning filters............................................................................... 18
6.3 Troubleshooting ....................................................................................................................... 21
6.3.1 Troubleshooting - Units with constant pressure....................................................................... 21
6.3.2 Troubleshooting - Units with proportional valve ....................................................................... 22
7 Technical data ................................................................................................................................... 23
7.1 Correspondence between valve parts and maximum valve pressure .......................................... 23
7.2 Correspondence between valve type and flowrate ..................................................................... 24
7.2.1 Legend symbols ................................................................................................................... 24
7.2.2 Main control valve................................................................................................................. 24
7.2.3 Maximum pressure valve....................................................................................................... 24
7.2.4 Proportional valve ................................................................................................................. 25
7.2.5 Boom section valve............................................................................................................... 25
8 Disposal at the end of service........................................................................................................... 25
9 Guarantee terms................................................................................................................................ 26
10 Conformity Declaration ..................................................................................................................... 27
• LEGEND SYMBOLS
=Generic danger
=Warning

3
1 PRODUCT DESCRIPTION
ARAG manual control units for crop spraying are composed of individual, manual type modular valves.
When installed on crop spraying machines, they ensure regular distribution of pesticides.
This booklet describes all the various parts that may be included in the unit. Some
of these parts may not be included in your unit. Likewise, given the modularity of the
product, some types of parts may not be assembled together but are only alternati-
ves for others.
The illustrations in this booklet are, therefore, provided only as indications. For detai-
led information, please refer to the description of the part in question and not of the
unit in general.
ARAG is not liable for any damage caused directly or indirectly by the type of uids
used for spraying by its control units.
The operator has full liability for the use of these products and therefore must verify
the safety regulations indicated on the package by the manufacturer of the liquid
and must wear suitable protective clothing (gloves, overall, footwear, helmet, etc.) as
required by law.
ARAG is therefore not liable for any damage or injury to persons, animals or things
as a result of the incorrect use of the products employed, without protection or con-
trary to recommendations.
1.1 Intended use
This device is designed to work on agricultural machinery for crop spraying
applications.
The machine is designed and built in compliance with EN ISO 14982 standard
(Electromagnetic compatibility - Forestry and farming machines), harmonized with
2014/30/UE Directive.

4
2 FUNCTIONING OF THE PRODUCT
2.1 Composition of the manual control units
The pictures of the control units in the following pages must be considered a mere
example and might not correspond to the conguration of your own unit.
2.1.1 Manual control units with 471 SERIES main control valve
F i g . 1
1Main control lever
2Maximum pressure valve
3Proportional valve
4Filter
5Boom section valves
6Adjustable compensation cocks (calibrated backows)
7Pressure gauge adapter
IN Intake of liquid for spraying
OUT A Discharge for maximum pressure valve
OUT B Discharge for calibrated backows
OUT C Discharge for proportional valve
OUT D Discharge for self-cleaning lter
U1...U5 Boom section delivery
The Main control lever (1) + Maximum pressure valve (2) subassembly corresponds to the
471 SERIES main control valve.

5
2.1.2 Manual control units with 464 SERIES main control valve
F i g . 2
1Main control lever
2Maximum pressure valve
3Proportional valve
4Filter
5Boom section valves
6Adjustable compensation cocks (calibrated backows)
7Pressure gauge adapter
IN Intake of liquid for spraying
OUT A Discharge for maximum pressure valve
OUT B Discharge for calibrated backows
OUT C Discharge for proportional valve
OUT D Discharge for self-cleaning lter
U1...U5 Boom section delivery
The Main control lever (1) + Maximum pressure valve (2) subassembly corresponds to the
464 SERIES main control valve.

6
2.2 Functions of components
1Main control lever
Controls the direction of the liquid through the system.
Lever down = liquid sent directly to the circuit for application
Lever up = liquid sent to the tank; the suction system, if present, starts functioning.
2Maximum pressure valve
Eliminates the excess liquid when the set pressure level is reached.
Can be adjusted manually using the appropriate knob; the knob has a different colour according
to the maximum pressure for the valve (refer to section 7.1 - Correspondence between valve parts
and maximum valve pressure for information on pressure values).
3Proportional valve
This is adjusted to control spraying pressure: when the vehicle progress speed changes during
spraying, the volume of the liquid distributed per surface unit (litres/ hectare) remains stable.
The increase or reduction in delivery is proportional to the number of revs of the engine with a
tolerance of +- 20%.
Can be adjusted manually using the appropriate yellow knob.
4Filter
Protects nozzles from dirt, which would eventually reduce their performance.
With self-cleaning lters, there is less need for frequent cleaning of the cartridge inside the lter.
5Boom section valves
Opens/closes the corresponding boom section. For valves with calibrated backows, the closed valve
position coincides with that for the discharge of the corresponding compensation cock.
6Adjustable compensation cocks (calibrated backows)
These are adjusted so the level of spraying pressure remains steady when one or more sections
of the boom are closed.
7Pressure gauge adapter (pressure gauge optional)
Adapter for pressure gauge connection (the pressure gauge indicates the working pressure when
the main control valve is open).
Details of operation are found below. Please refer to Section 4 - Actions prior to use
and 5 - Use for descriptions of the adjustment of individual parts.

7
3 INSTALLATION
3.1 Safety regulations
• Do not install the control unit inside the driver’s cab.
• Install the unit so that the valve levers are accessible for control but at a safe di-
stance from the position of the operator.
• The intake owrate for the unit must be less than maximum ow rate envisaged for
the main control valve.
• The parts and the hoses that are installed on the main pressure line (delivery line)
must be capable of withstanding greater levels of pressure than that of the maximum
pressure valve (refer to Section 7.2.3 - Maximum pressure valve).
• Commission the discharge system according to the maximum delivery ow rate for
the pump. Also install hose whose nominal operating pressure is greater than that of
the discharge: any bottlenecks in the discharge system could cause abnormally high
pressure levels.
• Make sure the hoses used are suitable for the diameters of the chosen hose tails.
• Use systems to secure the hoses that are suitable for the hoses in question.
It is recommended to install a pressure-relief device (Series 459 on general ARAG
catalogue) on the pump to avoid risks caused by a unit malfunction.
This device does not replace a further safety valve, but it can limit unit damages in
case of sudden over-pressures.
Contact skilled personnel for any intervention requiring modications to the congu-
ration of the hydraulic connections.
ARAG is not liable for any damage to equipment or injury to persons, animals or
things caused by incorrect or unsuitable connection of the unit.
Likewise, ARAG is not liable for any damage caused directly or indirectly to
equipment or machinery, or injury to persons, animals or things caused by unsuita-
ble or unt hoses, cable grips, wraps or other accessory.
All forms of warranty are rendered null and void in case of damage to the unit caused
by the above.

8
3.2 Installing and connecting the unit
Install the control unit and secure it using the appropriate holes located on the brackets, as shown
in Fig. 3.
Fi g . 3
We recommend following the standard array for assembly for optimum performance of the unit, as
shown in Fig. 4.
Fi g . 4
Fixing holes

9
3.3 Connecting up the system
Connect the hoses in the system according to the layout shown below.
Take care:
- Not to connect backow hoses in the lower part of the tank with the intention of using them as
hydraulic stirrers; only place them in the upper part so the liquid drops down by gravity, as shown
in Fig. 5.
Fi g . 5
Fi g . 6
RIGHT
WRONG

10
- Make a separate connection of the backow of the valves with the tank, as shown in Fig. 7.
CORRETTO
Fi g . 7
ERRATO
Fi g . 8
RIGHT
WRONG