Table of Contents
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- 1 Electric Control Units with Main Control Valve Series 871
- 2 Components of Electric Control Units
- 3 Electric Control Units with Main Control Valve Series 864
- 4 Installing and Connecting the Unit
- 5 Connecting up the System
- 6 Electrical Connections
- 7 Electric Unit Adjustments before Operation
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Summary of Contents for ARAG 863 Series
- Page 1 ELECTRIC CONTROL UNIT FOR CROP-SPRAYING APPLICATIONS 863-864-871-873 SERIES INSTALLATION, USE AND MAINTENANCE...
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Page 2: Legend Of Symbols
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 any future reference; ARAG reserves the right to modify product specifications and instructions at any moment and without notice. -
Page 3: Table Of Contents
CONTENTS • Legend of symbols ......................2 1 Product description ......................4 Intended use ......................4 2 Product functionality .......................5 Components of electric control units ................5 2.1.1 Electric control units with main control valve SERIES 871 ........5 2.1.2 Electric control units with main control valve SERIES 864 ........6 Components function ....................7 3 Installation ........................8 Safety regulations ....................8... -
Page 4: Product Description
For detailed 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 fluids used for spraying by its control units. -
Page 5: Product Functionality
PRODUCT FUNCTIONALITY Components of electric control units 2.1.1 Electric control units with main control valve SERIES 871 Fig. 1 Gearmotor of main control valve Maximum pressure valve Proportional electric valve Filter Boom section electric valves Metered by-passes Pressure gauge adapter or pressure sensor connection Intake of liquid for spraying Drain for maximum pressure valve OUT A... -
Page 6: Electric Control Units With Main Control Valve Series 864
2.1.2 Electric control units with main control valve SERIES 864 Fig. 2 Gearmotor of main control valve Maximum pressure valve Proportional electric valve Filter Boom section electric valves Metered by-passes Pressure gauge adapter or pressure sensor connection Intake of liquid for spraying Drain for maximum pressure valve OUT A Drain for calibrated backflows... -
Page 7: Components Function
Components function Gearmotor of main control valve Opens or closes main valve to let fluid flow through the system. Gearmotor is operated via a suitable switch installed on the control device of the unit (e.g.: control box or computer). • Valve open = liquid sent directly to the circuit for application; •... -
Page 8: Installation
Contact skilled personnel for any intervention requiring modifications to the configu- 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. - Page 9 Respect the mounting direction of the unit, as shown in Fig. 4: STANDARD MOUNTING POSITION Fig. 4...
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Page 10: Connecting Up The System
Connecting up the system Connect the hoses in the system according to the layout shown below. WARNING! - Do not connect backflow 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. -
Page 11: Electrical Connections
Electrical connections 863 and 873 series valves can be connected to all control boxes of the new 4669 series as well as to all control boxes of the previous 4663 and 4664 series and all ARAG computers. 3-wire operation >... -
Page 12: Connection To Control Devices
; minimum required cross-section area for cables connected to remaining unit components is 0.75 mm • Any damage resulting from use of unsuitable cables or anyway other than ARAG cables will automatically invalidate any warranty rights. • ARAG disclaims all liabilities for damage to equipment, persons, animals or things... -
Page 13: Setting Before Use
SETTING BEFORE USE • ONLY use clean water for any intervention or adjustment without any chemical additives. • Observe rated power supply voltage. • Make sure to disconnect power to the device before arc welding; consider physical- ly disconnecting the power supply cables. •... -
Page 14: Electric Unit Adjustments Before Operation
- tighten the pressure gauge into the relevant seat of pressure gauge holder flange until locking it, without forcing it. Use ARAG pressure gauges with 1/4" M coupling and a suitable end scale for the maximum operating pressure. • Pressure sensor: - use ARAG sensors (Code 466112.X00);... - Page 15 Fully open the proportional valve by setting down the relevant switch on the control device. Set the relevant switches on the control device to 'OFF' to close all section valves. Open all the compensation cocks by turning their knobs anticlockwise. Turn the knob clockwise and completely close the drain to the selfcleaning filter.
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Page 16: Adjustment Of Maximum Operating Pressure (Only Applicable For Units With Proportional Valve)
Adjustment of maximum operating pressure (only applicable for units with proportional valve) Should either of the following be noted during operation: • pressure above the maximum limit for the system and safety valve; • abnormal leaks of liquid; stop work, switch the pump off and check that the installation and preliminary procedures have been completed correctly. -
Page 17: Use
For detailed information on operation or adjustment of unit valves, ALWAYS refer to the operating and maintenance instructions manual relevant to your control device. Pressure readings are indicated by the pressure gauge or displayed at the control device (where unit is equipped with a pressure sensor). Calibration of operating pressure Select the type of nozzle and the relative operating pressure according to the litres/hectare (l/ha) to be sprayed and the speed of progress. -
Page 18: Constant Pressure Units
5.1.1 Constant pressure units (Fig. 7a and 7b) This kind of unit does not have a proportional valve, therefore the calibration of the operating pressure is carried out by the maximum pressure valve. The adjustment is made by turning the knob on the maximum pressure valve until operating pres- sure is obtained: •... -
Page 19: Calibrating The Metered By-Passes
Calibrating the metered by-passes These cocks safeguard the constant distribution of liquid even in case of operation with one or two section valves closed. Calibration must be carried out EACH TIME the type of nozzle is changed. The metered by-pass calibration knobs are equipped with a graduated scale. Once each metered by-pass has been calibrated, enter the value of the graduated scale for the type of nozzle in use in the tables on page 20. - Page 20 Calibrate ALL section valves before running a treatment; the calibration can be done as follows, depen- ding on the configuration of the control unit: • the number of nozzles is EQUAL for all section valves you need only to calibrate one single valve, then set the graduated scales of all the others to the same mark.
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Page 21: Metered By-Pass Calibration Tables
5.2.1 Metered by-pass calibration tables NOZZLE NOZZLE NOZZLE COLOR REF. COLOR REF. COLOR REF. TYPE TYPE TYPE NOZZLE NOZZLE NOZZLE COLOR REF. COLOR REF. COLOR REF. TYPE TYPE TYPE NOZZLE NOZZLE NOZZLE COLOR REF. COLOR REF. COLOR REF. TYPE TYPE TYPE... -
Page 22: Maintenance / Diagnostics / Repairs
• Wait until unit is fully dry before restoring electric connections. • ARAG is not liable for any damage caused to equipment or injury to persons, ani- mals or things caused by cleaning with unsuitable products. All forms of warranty are rendered null and void in case of damage to the unit caused by the above. -
Page 23: Cleaning The Filters
Take care not to damage the mesh when cleaning the filter: should you notice any damage to the mesh, replace the cartridge with a new one. Refer to the ARAG spare parts catalogue for references for ordering spare parts. -
Page 24: Automatic Cleaning Of Self-Cleaning Filters
6.2.2 Automatic cleaning of self-cleaning filters Make sure the drain on the self-cleaning filter is connected to the tank with a hose before starting cleaning. There are two methods for cleaning: • Continual cleaning: The filter cock is left open so that cleaning is carried out during spraying. In order to use the filter in this way, you must check that the unit’s intake flow rate is sufficient to supply both the drain for the self-cleaning filter in addition to the unit itself. - Page 25 Make sure the drain on the self-cleaning filter is connected to the tank with a hose before starting cleaning. • Regular cleaning: This procedure can be carried out at the end of each use or any time it is deemed necessary: Protective gloves, goggles and clothing must be worn.
- Page 26 Set the relevant switch on the control device to 'OFF' to close the main valve. Close the drain on the self-cleaning filter completely by turning the knob clockwise.
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Page 27: Troubleshooting
Troubleshooting FAULT CAUSE REMEDY • Check electric connection. Main valve motor malfunctioning • Have gearmotor inspected at the nearest Service Centre. Inlet and outlet tubes not connected • Check delivery and outlet tube connec- correctly tions. Maximum pressure valve fully •... - Page 28 FAULT CAUSE REMEDY Proportional valve not correctly sized • Change proportional valve. for system Adjustment inaccurate: minor • Check pump rate. movements of switch on propor- tional valve control device lead Insufficient liquid delivery to control • Increase pump RPM. to significant change in pressure unit •...
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Page 29: Technical Data
Black Green MAXIMUM PRESSURE Blue 863-865 SERIES Orange Yellow Open / close time 14 sec. 863 SERIES Gray Open / close time 7 sec. PROPORTIONAL Yellow Open / close time 14 sec. 873 SERIES Gray Open / close time 7 sec. -
Page 30: End Of Life Disposal
Dispose of the system in compliance with the established legislation in the country of use. GUARANTEE TERMS 1. ARAG s.r.l. guarantees this apparatus for a period of 360 day (1 year) from the date of sale to the client user (date of the goods delivery note). The components of the apparatus, that... - Page 31 _____________________________________________________________________________________ (*) Dichiarazione ai sensi dell'All. II B Dir. 2006/42/CE • la documentazione tecnica pertinente è custodita da ARAG, nella persona del suo legale rappresentante, Sig. Giovanni Montorsi; • ci si impegna a trasmettere, in risposta ad una richiesta adeguatamente motivata delle Autorità Nazionali, informazioni pertinenti sulle quasi-macchine.
- Page 32 Only use genuine ARAG accessories or spare parts to make sure manufacturer guaranteed safety conditions are maintained in time. Always refer to ARAG spare parts catalogue. 42048 RUBIERA (Reggio Emilia) - ITALY Via Palladio, 5/A Tel. +39 0522 622011 Fax +39 0522 628944 www.aragnet.com...
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