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Gason 1860 Operator's Manual

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1800 & 2000 SR SERIES AIR SEEDER
OPERATOR'S MANUAL
Covering the 1860, 1880/90 & 2120/50 Models
GPN 216593
REVISION -
10/09
COPYRIGHT
Neither this manual or part thereof may be reproduced or published without the prior permission of A.F. Gason Pty. Ltd.

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  • Page 1 1800 & 2000 SR SERIES AIR SEEDER OPERATOR’S MANUAL Covering the 1860, 1880/90 & 2120/50 Models GPN 216593 REVISION - 10/09 COPYRIGHT Neither this manual or part thereof may be reproduced or published without the prior permission of A.F. Gason Pty. Ltd.
  • Page 2 Page Intentionally Blank...

  • Page 3: Table Of Contents

    CONTENTS Warranty Form Introduction ............General Information ........... Safety ..............Specifications ............. Conversions ............Bolt Specifications ..........Ordering Parts ............ Spare Parts Record ..........Assembly Instructions ........Implement Hitch Systems ......Distribution System ........Pre-Delivery Checklist ........ Transporting ............Operating the Air Seeder ........Monitor Operation........
  • Page 4 CONTENTS Metering System SR Meterbox Assembly Features ....Low/High Rates ........Reducing the Outlets ......Large Seeds ......... Deep Banding ........Triple Shooting ........Removing Metershaft Assembly ....Removing Meterwheels ......Blanking Metershft Housing ....... Fitting Meterwheel Reduction Cover Plates High / Low Sprocket Ratio ......

  • Page 5: Introduction

    Fig. 1 1880RT Series Air Seeder. While every effort has been made to ensure the accuracy of the information in this manual, A. F. Gason Pty Ltd reserves the right to delete, change or add information without notice. 05/06...
  • Page 6 Introduction Page 2 Fig. 2 2150FT Series Air Seeder with Auger and rear walkway (optional). Fig. 3 2150RT Series Air Seeder. 02/07...

  • Page 7: General Information

    GENERAL INFORMATION Page 3 Introduction As the ground wheel rotates, so too does the metering system. The metering system The Air Seeder uses the flow of air to can be disengaged or engaged at the tractor convey seed and fertilizer to each tine. This cab.
  • Page 8 This offers implements but in most cases fitment is a a safe environment in which to fill the large straight forward operation.
  • Page 9 General Information Page 5 can be replaced at any time, if required, designed to operate in a harsh environment. without splitting the bins. It is fitted with a check valve to prevent damage if incorrectly connected. The trailers are built from 350/450- grade rectangular hollow section with either The blower is mounted on the trailer side plates or truss system for stiffening.

  • Page 10: Safety

    If you feel you need help or advice on the under pressure. operation of the Seeder, contact your local DO NOT remove any safety guards while authorized Gason Dealer. the seeder is operating. DO NOT operate the machine unless all To ensure trouble free and safe safety guards are securely fitted.
  • Page 11 Safety Page 7 Seeder Weight Unloaded Transporting 1860 model 2900kg approx. 1880 model 3300kg approx. Never transport the seeder with the 1890 model 3500kg approx. clutch switch engaged (ground drive 2120 model 4900kg approx. models). 2150 model 5500kg approx. Avoid transporting the seeder long Auger Operation and Safety distances when loaded.

  • Page 12: Specifications

    SPECIFICATIONS – 1860 SR SERIES Page 8 Dimensions 1860FT 1860RT Wheels Overall width 2500 2760mm Size: 1860FT 1860RT Overall height* 2870 2870mm Front tyre (Single) ---- 400/55-22.5 Top of bin height 2750 2750mm Front tyre ---- 340/80 R18 (CTC) Overall length^...
  • Page 13 SPECIFICATIONS – 1880 SR SERIES Page 9 Dimensions 1880FT 1880RT Wheels Overall width 3620 3620mm Size: 1880FT 1880RT Overall height* 2980 2980mm Front tyre (dual) ---- 340/80 R18 Top of bin height 2830 2830mm Front tyre ---- 15.5/80-24 (CTS/CTC) Overall length^...
  • Page 14 SPECIFICATIONS – 1890 SR SERIES Page 10 Dimensions 1890FT 1890RT Wheels Size: 1890FT 1890RT Overall width 3620 3620mm Front tyre (dual) ---- Overall height* 3160 3160mm Not available Front tyre ---- 15.5/80-24 Top of bin height 3000 3000mm (CTS/CTC) Rear tyres 23.1-30...
  • Page 15 SPECIFICATIONS – 2120 SR SERIES Page 11 Dimensions 2120FT 2120RT Wheels Overall width 4010 4010mm Overall height* 3415 3415mm Size: 2120FT 2120RT Top of bin height 3305 3305mm Front tyre (quad) ---- 18.4-30 Overall length^ 7245 11,200mm Rear tyres 30.5L-32 30.5L-32...
  • Page 16 SPECIFICATIONS – 2120 LQ SERIES Page 12 Dimensions 2120FT 2120RT Wheels Overall width 4010 4010mm Overall height* 3415 3415mm Size: 2120FT 2120RT Top of bin height 3305 3305mm Front tyre (quad) ---- 18.4-30 Overall length^ 7245 11,200mm Rear tyres 30.5L-32 30.5L-32 Seeder length 7245...
  • Page 17 SPECIFICATIONS – 2150 SR SERIES Page 13 Hydraulics Dimensions 2150FT 2150RT Fan Motor type ..fixed displacement Overall width 4300 4300mm ......axial-piston Overall height* 3700 3700mm Top of bin height 3590 3590mm Connections ... pressure inlet/main Overall length^ 7245...
  • Page 18 SPECIFICATIONS – 2150 LQ SERIES Page 14 Hydraulics Dimensions 2150FT 2150RT Fan Motor type ..fixed displacement Overall width 4300 4300mm ......axial-piston Overall height* 3700 3700mm Top of bin height 3590 3590mm Connections .... pressure inlet/main Overall length^ 7245 11,200mm return outlet/case drain Seeder length...
  • Page 19 SPECIFICATIONS – LEVEL BIN VOLUME Page 15 POSITION ON BIN (REFER FIG. BELOW) CONFIGURATION TOP FOLD MID POINT BOTTOM FOLD BIN JOIN FRONT 2770L 2215L 1456L 700L 535L 2 BIN REAR 3450L 2783L 1821L 860L 655L FRONT 2770L 2215L 1456L 700L 535L 3 BIN...

  • Page 20: Conversions

    CONVERSION FORMULAE Page 16 Useful Conversions – Formulae LENGTH: 1 km = 0.621371 mile 1 mile = 1.609344 km = 3.280840 ft. 1 ft = 0.304800 m 1 mm = 0.039390 inch 1 inch = 25.400 mm SPEED: 1km/h = 0.625 mph AREA: 1 ha = 10,000 m...

  • Page 21: Bolt Specifications

    BOLT SPECIFICATIONS Page 17 STANDARD BOLT HEAD MARKINGS AND TORQUE SPECIFICATIONS: CAUTION: Loose bolts can cause elongation of holes and part failures resulting in dangerous operating conditions and equipment breakdown. Check all bolts and nuts periodically during equipment operation and keep them tightened to the specified torque. If hardware replacement becomes necessary, replace with equivalent metric grade number.

  • Page 22: Ordering Parts

    Subject to any applicable Federal, State or Territory laws or ordinances, which may apply from time to time, A. F. Gason Pty Ltd reserves the right to make changes in design and specifications without notice or obligation and to change or discontinue models at any time without incurring any liability to any Purchaser thereof.

  • Page 23: Spare Parts Record

    SPARE PARTS RECORD Page 19 PART No. DESCRIPTION QTY. COST DATE 10/09...

  • Page 24: Assembly Instructions

    The extension beams may require some modification if being fitted to a non- The implement hitch on the CTC Gason implement. It is important that the model seeder must be mounted at the rear extension beams are securely fastened at of the bar.

  • Page 25: Implement Hitch Systems

    Assembly Instructions Page 21 Seeder to Implement Hitch to Suit 1880RT may need to rest the central bar in the pull arm extension (refer Fig. A7) The 1880RT seeder uses a rigid ‘A to help flatten the left hand arm and frame’...
  • Page 26 Assembly Instructions Page 22 Fig. A9 Rigid ‘A Frame’ as used on the 1880RT. Seeder to Implement Hitch to Suit 1880/90RT CTS (Control Traffic The cross beam can then be bolted Steerable) and 2120/50RT to the extension beams. Hydraulic hoses can be secured to one of the extension implement hitch...
  • Page 27 Assembly Instructions Page 23 Fig.A10 1880/90RT-CTS and 2120/50RT Seeder to implement hitch. Fig.A11 2150RT Air Seeder unhitched from implement Seeder to Implement Hitch to Suit allow easy connection and disconnection to 1880/90RT –CTC (Control Traffic Castor) the implement. Ensure that the extension beams are securely fastened to the two Similar to the 1860RT CTC hitch, the A- rear rows of the implement within the...
  • Page 28 Assembly Instructions Page 24 Fig.A12 1880/90RT CTC Hitch frame. Metering System Check all Wheel Nuts If you have informed the dealer of your Wheel nuts work loose planting needs at the time of purchase the transportation and should be checked seeder may already be ready for use.

  • Page 29: Distribution System

    Assembly Instructions Page 25 hoses to return the flow direct to the tank for all seeders. Refer to the ‘Hydraulic System’ section in this manual for further details. Distribution System Introduction The distribution system consists of primary, secondary and tertiary stages. Components for each stage must be fitted to the implement (refer Fig.
  • Page 30 Assembly Instructions Page 26 Fig. A15 Distribution Layout. 10/09...
  • Page 31 Assembly Instructions Page 27 Step 5. Fit all primary and secondary hoses. Ensure that there are no sharp turns and that the hoses stay as level as possible. A level and smooth fitting of hoses will help prevent blockages from occurring, and extend the life of the hose.

  • Page 32: Pre-Delivery Checklist

    Assembly Instructions Page 28 Final Pre-Delivery Check List Ground Drive Metering System - Cont. After Seeder been 7. Metering system turns freely. assembled and the distribution system fitted 8. Variator adjustment operates. to the implement a final check should be 9.

  • Page 33: Transporting

    TRANSPORTING Page 29 Transporting the Air Seeder Once the Air Seeder has been fully assembled possible quickly disconnect it from the implement for transporting. Before towing on the road you should consult with the appropriate state or local authority for any specific regulations and permits that required...

  • Page 34: Operating The Air Seeder

    OPERATING THE AIR SEEDER Page 30 General Information You are now ready to begin your seeding operation. Before operating the Air Seeder for Filling the Seeder’s Bins the first time, check that all components have been fitted and that the machine is ready for use (refer checklist, page 28).

  • Page 35: Monitor Operation

    Head Blockage Kit To stop seeding, simply turn the clutch off or place monitor on hold on VRT Seeders. The Gason Air Seeder is supplied with This will disengage the drive system. one head blockage sensor (GPN 208651) and harness. This can be expanded to 21 Monitor Operation sensors at a later stage if necessary.

  • Page 36: Monitor Introduction & Operation

    The function key on your Gason Air The 2200 Surveillance monitor has Seeder has been specifically set-up to been configured and loaded with the preset monitor 6 different areas of operation on the alarm values.
  • Page 37 ‘SHAFT 1 STOPPED’. check the setting. The monitor should This alarm will display “Gason A/S GT 2/3”. If the display repeat until the problem has been rectified. The ‘PRESSURE’ function will enable is different it will be necessary to correct this.

  • Page 38: Calibration

    GROUND DRIVE - CALIBRATION Page Introduction IMPORTANT The calibration procedure involves the BEFORE CALIBRATION rotation of the metering system by hand to OPERATION, CHECK THAT simulate the coverage of a certain area. A METERING SHAFTS TURN FREELY. material sample needs to be collected and weighed to calculate the application rate.
  • Page 39 Ground Drive - Calibration Page 35 Step 1. Open the meterbox hatch from the Refer to page 40 when calibrating a 3 bin being tested (Fig. C2). bin seeder or if an isolating clutch has been fitted to a meter shaft. Step 4.
  • Page 40 Ground Drive - Calibration Page 36 Fig. C7 Calibration Chart Decal. example shown back to the required setting. This method calibration chart (Fig. C7), for a planting of adjustment will ensure that there is no width of 13.5 metres. In this example, an slack in the cable.

  • Page 41: Method B (Preferred)

    Ground Drive - Calibration Page 37 Example 1 NOTE: Some fertilisers run more freely than others and actual usage may vary An application rate of 60 kg/ha of from the first calibration sample taken. It is wheat is desired on a planting width of 10.0 recommended that the operator checks the metres using a 4 outlet meterbox with 3 actual usage after the first bin load.

  • Page 42: Method C (Wheel Circumference)

    Ground Drive - Calibration Page 38 Example 3 adjustment assembly. metershaft reduction plates to the metershaft assembly A 6 outlet meterbox is to be used to to reduce the metering capacity if required plant oats at 65kg/ha. The meterbox has all (refer page 110).
  • Page 43 Ground Drive - Calibration Page 39 Drive the seeder forward over the 500 x sprocket ratio cultivated ground in a straight line so sowing width x wheel circ. = handle turns that the marked tyre rotates at least 5 times. will need help...

  • Page 44: Calibrating A 3 Bin Seeder

    Ground Drive - Calibration Page 40 Checking the Wheel Factor in the 2200 Example 1 Using example 1 on page 39 to Surveillance Monitor determine the wheel circumference for a To determine the revised wheel factor 1850 seeder half full of product the field value you will need to perform a calculation figure was 4.3metres.

  • Page 45: Variator Setting Guide

    Ground Drive - Calibration Page 41 ‘SR Meterbox / 6 meterwheels fitted’ should Introduction to Variator Setting Guide be used. The Variator Setting Guide should be By reading across and up the chart we used to approximate the variator setting can see that the recommended setting is when calibrating.
  • Page 46 Ground Drive - Calibration Page 42 VARIATOR SETTING GUIDE (INDICATIVE ONLY) WHEAT MATERIAL MATERIAL BULK DENSITY 850 (kg/cubic metre) SPROCKET RATIO STANDARD SR Meterbox / 3 Meterwheels fitted 9.5 ------- ------- ------- ------- 9.8 ------- ------- APPLICATION RATE (kg/ha) PER BIN ------- ------- ------- 0.8 PLANTING WIDTH (metres) SR Meterbox / 4 Meterwheels fitted...
  • Page 47 Ground Drive - Calibration Page 43 VARIATOR SETTING GUIDE (INDICATIVE ONLY) SUPER PHOSPHATE MATERIAL MATERIAL BULK DENSITY 1160 (kg/cubic metre) STANDARD SPROCKET RATIO SR Meterbox / 3 Meterwheels fitted ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- APPLICATION RATE (kg/ha) PER BIN ------- 0.8...
  • Page 48 Ground Drive - Calibration Page 44 VARIATOR SETTING GUIDE (INDICATIVE ONLY) SUPER PHOSPHATE MATERIAL MATERIAL BULK DENSITY 1160 (kg/cubic metre) HIGH RATE SPROCKET RATIO SR Meterbox / 3 Meterwheels fitted APPLICATION RATE (kg/ha) PER BIN ------- 0.7 ------- ------- ------- ------- ------- 0.7 PLANTING WIDTH (metres) SR Meterbox / 4 Meterwheels fitted NOT RECOMMENDED...
  • Page 49 Ground Drive - Calibration Page 45 VARIATOR SETTING GUIDE (INDICATIVE ONLY) UREA MATERIAL MATERIAL BULK DENSITY 780 (kg/cubic metre) STANDARD SPROCKET RATIO SR Meterbox / 3 Meterwheels fitted ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- APPLICATION ------- ------- -------...
  • Page 50 Ground Drive - Calibration Page 46 VARIATOR SETTING GUIDE (INDICATIVE ONLY) UREA MATERIAL MATERIAL BULK DENSITY 780 (kg/cubic metre) HIGH RATE SPROCKET RATIO SR Meterbox / 3 meterwheels fitted ------- ------- APPLICATION RATE (kg/ha) PER BIN ------- ------- ------- 0.8 PLANTING WIDTH (metres) SR Meterbox / 4 meterwheels fitted NOT RECOMMENDED...
  • Page 51 Ground Drive - Calibration Page 47 VARIATOR SETTING GUIDE (INDICATIVE ONLY) OATS MATERIAL MATERIAL BULK DENSITY 540 (kg/cubic metre) STANDARD SPROCKET RATIO REMOVE METERSHAFT COVER PLATE (Refer page 112 for full details) SR Meterbox / 3 Meterwheels fitted ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- APPLICATION ------- ------- ------- ------- ------- -------...
  • Page 52 Ground Drive - Calibration Page 48 VARIATOR SETTING GUIDE (INDICATIVE ONLY) BARLEY MATERIAL MATERIAL BULK DENSITY 750 (kg/cubic metre) STANDARD SPROCKET RATIO SR Meterbox / 3 Meterwheels fitted 9.9 ------- ------- ------- ------- ------- ------- ------- 9.2 ------- ------- ------- ------- ------- ------- 9.2 ------- ------- ------- ------- ------- APPLICATION 9.9 ------- ------- -------...
  • Page 53 Ground Drive - Calibration Page 49 VARIATOR SETTING GUIDE (INDICATIVE ONLY) PEAS MATERIAL MATERIAL BULK DENSITY 860 (kg/cubic metre) STANDARD SPROCKET RATIO SR Meterbox / 3 Meterwheels fitted ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- APPLICATION ------- ------- ------- -------...
  • Page 54 Ground Drive - Calibration Page 50 VARIATOR SETTING GUIDE (INDICATIVE ONLY) PEAS MATERIAL MATERIAL BULK DENSITY 860 (kg/cubic metre) HIGH RATE SPROCKET RATIO SR Meterbox / 3 Meterwheels fitted 9.7 ------- ------- APPLICATION RATE (kg/ha) PER BIN PLANTING WIDTH (metres) SR Meterbox / 4 Meterwheels fitted NOT RECOMMENDED SR Meterbox / 6 Meterwheels fitted...
  • Page 55 Ground Drive - Calibration Page 51 VARIATOR SETTING GUIDE (INDICATIVE ONLY) FABA BEANS MATERIAL MATERIAL BULK DENSITY 800 (kg/cubic metre) STANDARD SPROCKET RATIO * USE LARGE SEEDS/BROAD BEANS METERSHAFT ASSEMBLY (Refer page 105 for further information) SR Meterbox / 3 Meterwheels (Large Seeds) fitted 8.5 ------- ------- ------- ------- ------- ------- 9.2 ------- ------- ------- ------- 9.1 ------- ------- -------...
  • Page 56 Ground Drive - Calibration Page 52 VARIATOR SETTING GUIDE (INDICATIVE ONLY) CHICK PEAS MATERIAL MATERIAL BULK DENSITY 800 (kg/cubic metre) STANDARD SPROCKET RATIO * USE LARGE SEEDS/BROAD BEANS METERSHAFT ASSEMBLY (Refer page 105 for further information) SR Meterbox / 3 Meterwheels fitted 8.5 ------- ------- ------- ------- ------- ------- 9.2 ------- ------- ------- ------- 9.1 ------- ------- -------...
  • Page 57 Ground Drive - Calibration Page 53 VARIATOR SETTING GUIDE (INDICATIVE ONLY) CANOLA MATERIAL MATERIAL BULK DENSITY 720 (kg/cubic metre) STANDARD SPROCKET RATIO FITTED METERWHEEL REDUCTION PLATES (Refer to the meterbox section for further information page 110) SR Meterbox / 3 Meterwheels fitted APPLICATION RATE (kg/ha) PER BIN...
  • Page 58 Ground Drive - Calibration Page 54 VARIATOR SETTING GUIDE (INDICATIVE ONLY) SORGHUM MATERIAL MATERIAL BULK DENSITY 750 (kg/cubic metre) STANDARD SPROCKET RATIO FITTED METERWHEEL REDUCTION PLATES (Refer to the meterbox section for further information page 110) SR Meterbox / 3 Meterwheels fitted APPLICATION RATE (kg/ha) PER BIN...
  • Page 59 Ground Drive - Calibration Page 55 VARIATOR SETTING GUIDE (INDICATIVE ONLY) SUNFLOWER MATERIAL MATERIAL BULK DENSITY 460 (kg/cubic metre) STANDARD SPROCKET RATIO FITTED METERWHEEL REDUCTION PLATES (Refer to the meterbox section for further information page 110) SR Meterbox / 3 Meterwheels fitted 9.2 ------- ------- ------- ------- ------- 9.0 ------- ------- ------- ------- APPLICATION...

  • Page 60: Calibration Handle Turns

    Ground Drive - Calibration Page 56 Calibration Handle Rotation Chart PLANTING WIDTH 1/20 Hectare PLANTING WIDTH 1/20 Hectare 85.5 13.5 28.5 81.0 13.8 28.0 77.0 14.0 27.5 73.3 14.3 27.0 70.0 14.5 26.5 67.0 14.8 26.1 64.2 15.0 25.7 61.6 15.3 25.2 59.2...

  • Page 61: Area Rate Chart

    Ground Drive - Calibration Page 57 AREA RATE (Hectares/Hour) Width of Implement (Metres) 0.60 [Width (m) x Speed (km/h)] x 0.1000 Metric to Imperial Conversion Scales km/h Speed 8.75 Width 05/06...

  • Page 62: Converting Lb/Acre To Kg/Ha

    Ground Drive - Calibration Page 58 Conversion for Material Application Rates – lb / acre x 1.121 = kg / ha lb / acre kg / ha lb / acre kg / ha 58.0 65.0 60.0 67.3 62.0 69.5 64.0 71.7 66.0 74.0...

  • Page 63: Planting Details Reference

    Ground Drive - Calibration Page 59 05/06...
  • Page 64 Ground Drive - Calibration Page 60 05/06...

  • Page 65: Meter Drive System

    GROUND DRIVE – METERING DRIVE SYSTEM Page 61 Introduction The metering system used on your Air Seeder has been designed to handle a large range of seeds and fertilizers at different rates. Due to the large difference in material flow rates required on an air seeder i.e. 3 kg/ha of canola to 160 kg/ha plus of peas or fertilizer, certain adjustments may need to be made to the meterbox or drive system.
  • Page 66 Ground Drive – Metering Drive System Page 62 Checking the Variator for Damage turn the calibration handle to operate the variator. It must be remembered that the variators, even though they robust The variator output shaft, when set at construction, have a limited torque capacity. maximum, should rotate 1 turn for every 4 Care must be taken when operating the turns of the input shaft.

  • Page 67: High Sprocket Ratio

    Ground Drive – Metering Drive System Page 63 ‘High Ratio’ all the time. Variator damage High Rate Sprocket Ratio may occur depending on the material’s When wishing to meter high rates of seed resistance. or fertilizer it may be necessary to increase the speed range of the metershaft.

  • Page 68: Vrt Hydraulic Drive Model Introduction Operation

    The Farmscan 3000 & 3500 monitor and seeding pod is the control face Monitor Installation (VRT) of the Gason Hydraulic Drive system. Refer to the Farmscan operator’s manual for specific information regarding the physical installation of the monitor to the tractor.

  • Page 69: Monitor Operation

    VRT Hydraulic Drive – Monitor Operation Page 65 ‘NO CAL’ will be displayed if the bin Use the soft key to the left of the ‘WIDTH FACTOR’ to highlight the current has not been calibrated. factory setting of 10.00 metres. Use the navigator keys around the ‘CAL’...
  • Page 70 VRT Hydraulic Drive – Monitor Operation Page 66 RUN/HOLD Function It is possible to alter the prime functions When the monitor is switched on, the run time by changing the preset value in the screen will display ‘UNIT ON HOLD’. This OPTIONS menu screen.
  • Page 71 VRT Hydraulic Drive – Monitor Operation Page 67 Message Display supplied to the metering system whenever the tractor’s hydraulics have been engaged If during the process of seeding a to run the fan or auger, if fitted. problem occurs with the seeder’s operation It is important to disengage the tractor’s an alarm will be displayed in the lower right hand corner of the screen.
  • Page 72 All new seeders coming from the Gason factory have already been setup and require only minimal input (refer to ‘Setting Implement Width’ on page 64).
  • Page 73 VRT Hydraulic Drive – Monitor Setup Page 69 6. Repeat this process to enable all 10. Set the specific machine settings in the ‘MACHINE’ screen. Refer remaining bins. Set the pasture planter, MACHINE if fitted, as the Auxiliary bin. The Settings on page 70.
  • Page 74 VRT Hydraulic Drive – Monitor Setup Page 70 MACHINE Settings: WHEEL FACTOR DRIVE RATIO 105:1 for low ratio ENABLED The ‘WHEEL FACTOR’ has been 24:1 for high ratio preset at the factory to suit the particular seeder’s drive wheel target. The Drive Ratio alarm monitors motor rotation to metershaft revolutions.

  • Page 75: Manual Override

    Step 1. Place the product to be calibrated The VRT Hydraulic Drive metering in the appropriate bin making any system on your Gason Air Seeder can be changes to the metering system operated independently from the Farmscan beforehand. monitor. This feature will be helpful if carrying out maintenance or in the event of Step 2.
  • Page 76 VRT Hydraulic Drive – Manual Override Page 72 Step 10. Repeat the process as per the first bin until all products have been calibrated. Re-fit chains or refill bins to prepare for operation. Re- engage the fan’s flow control valve. The seeder should now be ready for operation.
  • Page 77 VRT Hydraulic Drive – Manual Override Page 73 Manual Override Calibration Chart for 1/10th of a Hectare Constant Ground Speed (km/h) 10.5 11.5 6.25 10.5 11.5 12.5 13.5 14.5 15.5 16.5 17.5 18.5 19.5 Example: An implement with a 12.5 metre sowing width driven at a constant 9km/h ground speed. The sample run time to calibrate the machine would be 32 seconds for a 1/10th of a hectare sample.

  • Page 78: Calibration

    VRT HYDRAULIC DRIVE – CALIBRATION Page 74 Introduction Medium to High application rates (above 15kg/ha) seeder’s calibration -Select either low or high sprocket ratio. procedure involves a controlled rotation of Refer to the Sprocket Ratio Selection Guide for specific information. metering system enable...
  • Page 79 VRT Hydraulic Drive – Calibration Page 75 6. Go to the ‘RATES’ screen either directly from the ‘RECORDS’ screen or from the ‘MENU’ screen:- a) Select the bin to calibrate (Bin number 1) by highlighting the appropriate zone and using the up or down navigator keys.
  • Page 80 VRT Hydraulic Drive – Calibration Page 76 f) Push green button start navigator keys to select the appropriate calibration test. bin. g) Allow system to stop by itself. If the sample tray overflows or a larger 13. Repeat the product selection, rate setting sample is required, change the ‘TEST and calibration procedure as listed in PULSES’...
  • Page 81 VRT Hydraulic Drive – Calibration Page 77 the tractor before re-engaging the fan’s handle supplied, and remove the retaining flow control valve. collars. Now, simultaneously pull the 2 sprockets off the shafts leaving the chain 17. Start the fan by engaging the tractor’s attached.

  • Page 82: Sprocket Ratio Selection Guide

    VRT Hydraulic Drive – Calibration Page 78 By referring to the middle chart labelled Introduction to the Sprocket Selection ‘SR METERBOX METERWHEELS FITTED’ Guide recommended ratio can be determined ie. The Sprocket Selection Guide is used follow the closest application row across and appropriate implement width/ground...
  • Page 83 VRT Hydraulic Drive – Calibration Page 79 SPROCKET RATIO SELECTION GUIDE (INDICATIVE ONLY) MATERIAL WHEAT MATERIAL BULK DENSITY (kg /cubic metre) METERBOX SETTINGS STANDARD SR Meterbox / 3 Meterwheels fitted HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH ---- HIGH...
  • Page 84 VRT Hydraulic Drive – Calibration Page 80 SPROCKET RATIO SELECTION GUIDE (INDICATIVE ONLY) MATERIAL DAP/MAP MATERIAL BULK DENSITY 1000 (kg /cubic metre) METERBOX SETTINGS STANDARD SR Meterbox / 3 Meterwheels fitted HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH ---- HIGH ---- ----...
  • Page 85 VRT Hydraulic Drive – Calibration Page 81 SPROCKET RATIO SELECTION GUIDE (INDICATIVE ONLY) MATERIAL UREA MATERIAL BULK DENSITY (kg /cubic metre) METERBOX SETTINGS STANDARD SR Meterbox / 3 Meterwheels fitted HIGH HIGH HIGH HIGH HIGH ---- HIGH ---- ---- ---- ---- ---- HIGH...
  • Page 86 VRT Hydraulic Drive – Calibration Page 82 SPROCKET RATIO SELECTION GUIDE (INDICATIVE ONLY) MATERIAL OATS MATERIAL BULK DENSITY (kg /cubic metre) METERBOX SETTINGS REMOVE METERSHAFT COVER PLATE (Refer meterbox section for more information) SR Meterbox / 3 Meterwheels fitted HIGH HIGH HIGH HIGH...
  • Page 87 VRT Hydraulic Drive – Calibration Page 83 SPROCKET RATIO SELECTION GUIDE (INDICATIVE ONLY) MATERIAL BARLEY MATERIAL BULK DENSITY (kg /cubic metre) METERBOX SETTINGS STANDARD SR Meterbox / 3 Meterwheels fitted HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH HIGH ---- HIGH...
  • Page 88 VRT Hydraulic Drive – Calibration Page 84 SPROCKET RATIO SELECTION GUIDE (INDICATIVE ONLY) MATERIAL PEAS MATERIAL BULK DENSITY (kg /cubic metre) METERBOX SETTINGS STANDARD SR Meterbox / 3 Meterwheels fitted HIGH HIGH HIGH HIGH ---- ---- ---- ---- ---- ---- ---- ---- HIGH...
  • Page 89 VRT Hydraulic Drive – Calibration Page 85 SPROCKET RATIO SELECTION GUIDE (INDICATIVE ONLY) MATERIAL FABA BEANS MATERIAL BULK DENSITY (kg /cubic metre) * USE LARGE SEEDS/BROAD BEANS METERSHAFT ASSEMBLY (Refer page 105 for further information) SR Meterbox / 3 Meterwheels fitted HIGH HIGH HIGH...
  • Page 90 VRT Hydraulic Drive – Calibration Page 86 SPROCKET RATIO SELECTION GUIDE (INDICATIVE ONLY) MATERIAL CANOLA MATERIAL BULK DENSITY (kg /cubic metre) FITTED METERWHEEL REDUCTION PLATE (Refer to the meterbox section for further information page 110) SR Meterbox / 3 Meterwheels fitted SPEED (km/h) IMPLEMENT 6-10...
  • Page 91 VRT Hydraulic Drive – Calibration Page 87 SPROCKET RATIO SELECTION GUIDE (INDICATIVE ONLY) MATERIAL SORGHUM MATERIAL BULK DENSITY (kg /cubic metre) FITTED METERWHEEL REDUCTION PLATE (Refer to the meterbox section for further information page 110) SR Meterbox / 3 Meterwheels fitted HIGH HIGH HIGH...
  • Page 92 VRT Hydraulic Drive – Calibration Page 88 SPROCKET RATIO SELECTION GUIDE (INDICATIVE ONLY) MATERIAL SUNFLOWER MATERIAL BULK DENSITY (kg /cubic metre) FITTED METERWHEEL REDUCTION PLATE (Refer to the meterbox section for further information page 110) SR Meterbox / 3 Meterwheels fitted HIGH HIGH HIGH...

  • Page 93: Planting Details Reference

    VRT Hydraulic Drive – Calibration Page 89 REDUCTION PLATES FITTED SPROCKET RATIO No. OF M/WHEELS 05/06...
  • Page 94 VRT Hydraulic Drive – Calibration Page 90 REDUCTION PLATES FITTED SPROCKET RATIO No. OF M/WHEELS 05/06...

  • Page 95: Maintenance

    VRT HYDRAULIC DRIVE – MAINTENANCE Page 91  Check that the electrical connector at Introduction the rear of the monitor is secure. Do The VRT Hydraulic drive metering not over tighten.  Inspect VRT loom routing on the system utilizes robust and reliable hydraulic and electrical components that should offer tractor implement.
  • Page 96 VRT Hydraulic Drive – Maintenance Page 92 If the light does not flash at every During normal operation you would expect tooth you may need to reduce the sensor’s to see a slight variation between pulses clearance to the target, or check that the when in the low sprocket ratio setting target runs true.

  • Page 97: Trouble Shooting

    VRT HYDRAULIC DRIVE – TROUBLE SHOOTING Page 93 Problem Possible Solution  Check connection at battery. 1. Monitor will not turn on.  Check cable connection is firm at back of monitor.  Refer to the Monitor operator’s manual. 2. Seeder’s pod does not respond. ...
  • Page 98 VRT Hydraulic Drive – Trouble Shooting Page 94  Check bulk density of product is similar 5. Calibration pulses/kg value is different to previous calibrations with similar to the previous material.  Check material flows freely and is not product. wet or binding to bin or meterwheels.
  • Page 99 Refer to the VRT Maintenance section on page 92 for further explanation. NOTE: If you experience a problem that is not solved by either the monitor’s operating manual or the above trouble shooting section contact your local Gason Dealer for further instructions. 11/15...

  • Page 100: Liquid Equipped Air Seeder

    VRT monitor. The flush tank needs to be filled with General Safety Conditions for Gason good quality clean water for hand and -face Liquid Equipped Seeders washing. Water taps are positioned on each side of Liquid Equipped Seeder.

  • Page 101: Operating Machine

    Liquid Equipped Air Seeder Page 97 General Start Up Instructions Tank mixing additives. When additional chemicals are added directly to the seeder’s Place at least 200 litres of liquid in the tank ensuring main supply taps are switched tanks, always add an equal quantity to both on before operating.

  • Page 102: Calibration

    Liquid Equipped Air Seeder Page 98 3. Leaving the tractor, switch the pump Press ‘CALIB PROD’ to go to the source selector valve on the seeder to ‘CLEAN WATER’. Product Calibration page. Fig.L4 4. Once the flushing is complete the operator can turn the pump off at the tractor, press the ‘FLUSH’...
  • Page 103 Liquid Equipped Air Seeder Page 99 will show feedback from seeder when test is 5. Place measuring container on level running) surface and take volume measurement for the sample taken from 1 outlet. (Take care, small errors in reading measurement will b) Engage tractor hydraulic to run the liquid decrease accuracy).

  • Page 104: Trouble Shooting

    Liquid Equipped Air Seeder Page 100 Liquid Trouble Shooting  Check hydraulic hoses are fitted  correctly to the tractor remotes.  The hydraulic motor driving the pump  is speed restricted and direction of flow protected. If the pump does not run, reverse the flow or hydraulic hose connections at the remotes.
  • Page 105 Liquid Equipped Air Seeder Page 101  Change restriction distribution system. Increase decrease size flow restrictor/orifice plates to upper and lower rate limits.  Change the pump speed. Changing pump speed will move the upper and lower rate limits. Fig.L9 11/15...
  • Page 106 SR Meterbox Assembly Page 102 Fig. M1 SR Meterbox Assemby. 05/09...

  • Page 107: Metering System Sr Meterbox Assembly Features

    SR Meterbox Assembly Page 103 SR Meterbox Assembly position to give maximum access to the underside of the meterbox. The SR Meterbox assembly creates the base structure enable various configurations in sowing requirements to be achieved. The base structure allows for a maximum of 6 primary delivery tubes.

  • Page 108: Low/High Rates

    SR Meterbox Assembly Page 104 slide the hatch assembly out from the right Refer to page 110 for detailed instructions on hand side of the machine. fitting the plates. High Rates (Sprocket Ratio) It may be necessary to alter the sprocket ratio on a particular meterbox to allow the various application rates to be sown.

  • Page 109: Large Seeds

    Fig. M8 Large seeds metershaft assembly. placed in the bin and that the metershaft be turned over by hand. If excessive seed Contact your Gason dealer more damage, cracking of seed, occurs or if the information. metershaft does not turn smoothly it will be Fig.

  • Page 110: Deep Banding

    SR Meterbox Assembly Page 106 Deep Banding The detent plate has 2 positions for partial diversion. The 2 detents will divert Changing from conventional planting to approximately 33% or 66% of the product deep banding can be as simple as using from one meterwheel to an adjacent primary the handles on the rear of the meterbox to tube.
  • Page 111 SR Meterbox Assembly Page 107 Fig. M11 A 2 Bin Model shown with diverter blades in deep banding position. Use as a guide only. Fig. M12 A 3 Bin Seeder set up for triple shooting. Use as a guide only. 05/09...

  • Page 112: Removing Metershaft Assembly

    Meterbox Assembly - General Page 108 Removing Metershaft Assembly Note: When refitting the metershaft assembly check that:  The metershaft nose bearing has been Ensure that the bin is empty before attempting to remove the metershaft greased (refer page 113). ...
  • Page 113 Meterbox Assembly - General Page 109 Fig. M16 Grub screws on metershaft bearing. freely. The bearing in the nose assembly will Undo and remove the 3 button head be firm to turn but should rotate and feel screws that are used to retain the smooth in its operation.

  • Page 114: Blanking Metershft Housing

    Meterbox Assembly - General Page 110 IMPORTANT NOTE: Remove the M6 screw on the top face Meterwheel assemblies must be fitted to the of the metershaft assembly housing shaft in the correct direction to allow the directly above the port to be blanked. material to flow when the shaft is operating Slide the meterwheel blanking cover (refer Fig.

  • Page 115: High / Low Sprocket Ratio

    Meterbox Assembly - General Page 111 confirm that the sleeves have been and the primary hose coupling assembly fitted correctly. (refer figure M9 on page 95). Removal of the reducing cover plates is a Airflow turbulence will occur inside the reversal of this procedure.

  • Page 116: Metering Oats

    Meterbox Assembly - General Page 112 Metering Oats seeding. To check for bridging it will be necessary to place a known weight of It will be necessary to remove the cover product into the bin and to start the seeding plate that protects the meterwheels when operation.

  • Page 117: Bearing Replacement In Nose Assy

    Meterbox Assembly - General Page 113 Bearing Replacement in Nose Assembly 3. Hold the assembly in one hand and rotate the bearing. The metershaft assembly is fitted with a special bearing at the drive end of the 4. If the bearing feels rough as it rotates shaft in the nose assembly.

  • Page 118: Hydraulic System

    Meterbox Assembly - General Page 114 Introduction The flow required to operate the air seeder will vary depending on the specific model The hydraulic motor that drives the air and options. seeder blower is a robust and highly Refer to table H2 to determine the flow efficient unit.

  • Page 119: Hydraulic Connections

    Hydraulic System Page 115 Case Drain With the system running it will now be possible to set the desired fan speed at the It is important to fit the case drain tractor. directly to the tank or through a dedicated case drain line that may already exist on the You should consult with your local tractor.

  • Page 120: Disconnecting The Hyd. Hoses

    Hydraulic System Page 116 Connecting the Seeder Hydraulics to the Both return lines must be connected Implement on Rear Tow Seeders to the tractor using the safety (Tema) fittings supplied. This breakaway coupling When connecting the air seeder to the has a locking ring that should be engaged rear of the implement you will find that the when connected to prevent accidental...

  • Page 121: Filter Maintenance

    Hydraulic System Page 117 Oil can be drained by pushing the tip If a badly clogged filter element is not on the male end of the Tema coupling replaced the by-pass valve could operate against a clean hard surface. constantly. This would mean that all or part of the oil flow is no longer being filtered.

  • Page 122: Blower Capacity

    Application Rate (Conventional enough airflow to convey the large amounts Seeding) of seed and fertilizer, Gason’s have Total application rate relates to the developed a high performance blower of maximum amount of seed and fertilizer that aluminium and steel construction.
  • Page 123 As the speed Flow Control Valve reduces the allowable application rate will The Gason Air Seeder is fitted with a increase. Some examples follow. flow control valve located next to the blower unit. By altering the setting it is possible to Example 3 change the speed of the blower (Fig.

  • Page 124: Blower Speed

    If when seeding, you find that the exists on the Gason Air Seeder. blower is running too fast, stop the machine and reduce the setting on your flow control A more important factor when setting valve at the seeder (refer Fig.
  • Page 125 117 determine accurate maximum conveyance kg/ha in the earlier example (refer Example levels, A. F. Gason Pty. Ltd. will not be held 1 on page 118), we can see that we are responsible for conveyance short falls in the well short of the system’s maximum...

  • Page 126: Maximum Application Charts

    Blower Capacity Page 122 Maximum Application Rate 2 Primary Hoses 6 km/h 8 km/h 10 km/h 12 km/h 14 km/h Planting Width (metres) Blowercap2rev.- Table B5 Worked example: Maximum sowing rate for a 2 outlet system on a 12 metre wide planting width at 10 km/h ground speed.
  • Page 127 Blower Capacity Page 123 Maximum Application Rate 3 Primary Hoses 6 km/h 8 km/h 10 km/h 12 km/h 14 km/h Planting Width (metres) Blowercap3rev.- Table B6 Worked example: Maximum sowing rate for a 3 outlet system on a 12 metre wide planting width at 10 km/h ground speed.
  • Page 128 Blower Capacity Page 124 Maximum Application Rate 4 Primary Hoses 6 km/h 8 km/h 10 km/h 12 km/h 14 km/h Planting Width (metres) Blowercap4rev.- Table B7 Worked example: Maximum sowing rate for a 4 outlet system on a 12 metre wide planting width at 10 km/h ground speed.
  • Page 129 Blower Capacity Page 125 Maximum Application Rate 6 Primary Hoses 6 km/h 8 km/h 10 km/h 12 km/h 14 km/h Planting Width (metres) Blowercap6rev.- Table B8 Worked example: Maximum sowing rate for a 6 outlet system on a 12 metre wide planting width at 10 km/h ground speed.
  • Page 130 Blower Capacity Page 126 Introduction Wheelnuts  Check tension of all wheelnuts when Regular maintenance will ensure trouble free operation for the life of the first working the air seeder after seeder. It is recommended that when assembly or if a wheel has been replacing parts genuine...

  • Page 131: General Maintenance

    General Maintenance Page 127 During the Season 4. Hydraulic system 1. Metershaft Assembly  Inspect all hydraulic hoses for  external wear. Grease metershaft nose assembly  Inspect all hydraulic fittings for bearing. possible leaks. You will need to remove the metershaft 5.
  • Page 132 General Maintenance Page 128 End of Season Checklist General  Check meterbox is free of fertilizer At the end of the season ensure that and seed.  Check meterwheels are clean. the seeder is cleaned of all product and  Check metershafts turn freely. mud.

  • Page 133: Trouble Shooting

    TROUBLE SHOOTING Page 129 Problem Possible Solution Transporting/Towing  Check tyre pressures are as per the Transporting/Towing Issues related to recommended operating pressures stated unstable operation at maximum towing in the Specification section.  Refer to the Transporting section for tips speeds.
  • Page 134 Trouble Shooting Page 130 Problem Possible Solution  Check that the correct hoses are attached 4. Hydraulic system not operating at the tractor and implement and that the breakaways fitted are fully engaged.  Check that the flow control valve on the seeder is not set at zero.
  • Page 135 Trouble Shooting Page 131 Problem Possible Solution  Check the variator setting guide (pages Difficulty obtaining High Rates 41 to 55) to obtain more information on what can be expected from the metering system.  Check the meterwheels are not damaged in some way and have been fitted to the metershaft in the correct orientation.
  • Page 136 Trouble Shooting Page 132 Distribution System  Check blower speed is set correctly (do Blockage occurring in hose system not exceed 4500 rpm).  Check that the sowing boots are clear of mud and flow is not restricted.  Check that the material being sown is not wet or binding.
  • Page 137 The Gason Pasture Planter has been seed and starter fertilizer. designed to operate in conjunction with the range of Gason Air Seeders. The pasture The kit bolts onto the front of the planter is generally mounted directly to the implement and distributes the urea through a Seeder’s bin.

  • Page 138: Auger Operation

    Auger Operation Page 134 Introduction The auger (optional feature) can be used for loading and unloading the air seeder bins. The arm mechanism that supports the auger will allow the augers hopper to be positioned under the bins for unloading or beside the machine for filling. Fig.
  • Page 139 This will extend the life of the the barrel and flighting. A speed control auger. Thoroughly clean the hopper and valve is available as an option. Contact your barrel after conveying the product to local Gason Dealer for further information. prevent contamination. 05/06...

  • Page 140: Storage And Cleaning

    STORAGE AND CLEANING Page 136 To maximize the life of the seeder it is lubricant. Place grease or some form suggested that basic cleaning of rust inhibitor on the variator shafts. protection of some areas of the seeder is performed after each season. Plug primary distribution hoses on seeder and fit the supplied cover Empty all bins of fertilizer and seed.

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