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Standen T2 Manual

Two row potato harvester
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Two Row Potato Harvester
Tel: +44 (0)1353 661111
T2
From 2021
Standen Engineering Limited.
Hereward Works,
Station Road, Ely,
Cambridgeshire.
CB7 4BP
England.
www.standen.co.uk
Fax: +44 (0)1353 662370

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  • Page 1 Two Row Potato Harvester From 2021 Standen Engineering Limited. Hereward Works, Station Road, Ely, Cambridgeshire. CB7 4BP England. Tel: +44 (0)1353 661111 www.standen.co.uk Fax: +44 (0)1353 662370...
  • Page 5 The document is proof that the correct procedures have been followed. The New Machine Installation Record Card should be returned to Standen Engineering Limited within 7 days of installation. Failure to do so may invalidate the machine warranty.

  • Page 7: Table Of Contents

    CONTENTS INTRODUCTION HARVESTING Introduction to the handbook Starting off your harvester 1.28 Warranty Damage prevention 1.28 Replacement parts Getting the best results during harvesting 1.30 SAFETY PRECAUTIONS Safety MAINTENANCE Machine noise level Maintenance of the Operation hydraulic systems 1.34 Transport Residual hydraulic pressure Maintenance dump procedure...

  • Page 8: Introduction

    Introduction to the Handbook This handbook provides the information for the operation, adjustment and maintenance of your Standen T2. To enable you to achieve the best results from the machine, the manufacturer recommends that you read the handbook thoroughly prior to using the machine for the first time.

  • Page 9: Warranty

    Only when recommended parts are used can responsibility be considered under the terms of the warranty. The rear of this handbook contains a list of spare parts available through your Standen Agents. Each illustration shows a complete unit or assembly in exploded form.

  • Page 10: Safety Precautions

    SAFETY PRECAUTIONS Safety The Standen T2 has been designed to comply with current Safety Regulations. However, as with all machinery there will be inherent dangers whilst operating and carrying out maintenance on the machine. The following safety precautions should therefore be brought to the attention of all persons operating and working on the machine.

  • Page 11: Transport

    SAFETY PRECAUTIONS The operator must not leave Maintenance the tractor seat until the When left free standing, i.e., machine has been lowered to not attached to the tractor, the ground, the tractor engine the machine must be on level switched off, the handbrake ground.
  • Page 12 SAFETY PRECAUTIONS...
  • Page 13 SAFETY PRECAUTIONS...

  • Page 14: Installation T2

    The touch screen gives control of all adjustable functions, and diagnostic functions. The T2 is designed to be towed from the pick-up hitch hook of the tractor and imposes a transferred load of 2.3 tonnes to the tractor with basic unmanned model.

  • Page 15: Attaching The Harvester

    INSTALLATION Attaching the Harvester The operator should have read and understood the tractor operator's manual prior to attaching the machine and putting it to work. Raise the harvester on the pick-up hitch. The harvester chassis should be nominally level. If the chassis is in a nose up attitude or extremely nose down, the drawbar eye (item 1, figure 1) should be adjusted accordingly to compensate.

  • Page 16: Pto Shaft

    INSTALLATION PTO Shaft It is essential that the PTO shaft be matched to the tractor to give the correct drive-line and to ensure that it is safe in work. An incorrectly fitted or badly guarded PTO shaft can be lethal. Do not take chances. The standard specification machine is geared to operate at 1000 rpm PTO speed.

  • Page 17: Operation

    OPERATION 1.10 Drawbar The steerable drawbar is operated by the switch ‘Drawbar right/left’ on the touch screen, or by the left-hand joystick on the slave box. The drawbar is used in conjunction with the axle steering to ensure the machine operates parallel to the rows. Only operate the drawbar when the digger assembly is raised or when the machine is moving otherwise components may be damaged.

  • Page 18: Diablo Rollers

    1.11 OPERATION The pressure setting needs to be made when the machine is in work so that the relative working position of the depth wheel to the ridge is correct. By positioning the clamp stops (item 4, fig 4) in the pressure-setting quadrant, weight can be removed from the depth wheel, or extra pressure can be added to the wheel.

  • Page 19: Disc Coulters

    For very light soil conditions, hydraulically powered disc coulters are available to help keep the discs turning. Hydraulic power is derived for the same source as for the powered diablo rollers. Total combinations of hydraulic options need to be discussed with Standen Engineering Limited Fig 6 Fig 5...

  • Page 20: Haulm Intake Rollers

    Standen Engineering Limited. The spring-loaded tension rollers (item 1, fig 8) maintain the drive on the return side of the web.

  • Page 21: Sieving Web

    50mm pitches to suit the crop and soil conditions being harvested. The sieving web drive uses the ‘Standen Wrap Drive’ configuration fitted with a reverse running assister drive on the return side. This gives a virtually slip-free drive under most conditions and eliminates web drive sprockets allowing for easy web pitch changes.

  • Page 22: Sweeping Clod Fingers

    1.15 OPERATION Sweeping Clod Fingers (optional) The sweeping clod fingers have three functions. Firstly, to spread the ridge to the full width of the digger web and so maximise the area used for soil separation, secondly to break up the ridge when the soil is solid and start to separate the potatoes from the soil, and thirdly to rub the soil through the web before reaching the rotary agitators.

  • Page 23: Haulm Roller

    OPERATION 1.16 Haulm Roller The scroll shaft (item 1, fig 13) transfers the crop over the haulm roller (item 2, fig 13). The haulm roller is designed to pinch the haulm and trash and drop it onto the ground under the machine. The haulm roller is driven by the hydraulic motor (item 3, fig 9). Haulm roller speed is controlled from the touch-screen.

  • Page 24: Haulm Fingers

    1.17 OPERATION Haulm Fingers The function of the haulm fingers (item 3, fig 13) is to catch the haulm and direct it down into the haulm roller. Moving the haulm fingers away from the scroll roller will allow a clearer flow for the crop. In green top or heavy trash it may be necessary to rotate some of the fingers out of the crop flow to prevent overloading of the haulm roller and excessive damage to the crop.

  • Page 25: Omega Separator Units

    OPERATION 1.18 Roller Replacement To replace a roller, raise the rear of the table fully and remove the retaining bolt and washer (item 2, fig 15). Slide the roller off the shaft. The rollers are a close fit on the spigot at the gearbox end and may need to be prised off or bumped free.

  • Page 26: Spreader Unit

    1.19 OPERATION Each clod roller is fitted with a scraper (item 4, fig 16) which needs to be closely adjusted to remove loose soil from the rollers. To achieve a steady crop flow over the unit, the angle of the Omega can be adjusted hydraulically via the control console.
  • Page 27 OPERATION 1.20 The speed of the discharge web is controlled from the touch-screen. The touch-screen button starts/stops all the elements of the rear section of the harvester. With the touch-screen button ON, the joystick button starts/stops only the elevator web by operating the bypass valve (item 2, fig 17). On machines fitted with a picking table, the button starts/ stops the manned elements of the machine.

  • Page 28: Rh Wheel Tracking

    1.21 OPERATION RH Wheel Tracking The RH wheel should be tracked fully in for transport and fully out during work to give optimum balance and reduce wheel loading during operation. The RH wheel is rotated into position by the tracking ram (item 1, fig 19). Before tracking the RH wheel, always ensure everyone in the vicinity is aware of your intentions.

  • Page 29: Powered Axle

    OPERATION 1.22 Powered Axle The powered axle provides additional traction during work. The powered axle transfers power from the tractor PTO to hydraulically drive the harvester wheels up to a maximum speed of 5.5 kmh (3.5 mph). This is achieved by means of a load sensing, pressure compensated, variable displacement pump, which provides the hydraulic oil flow to drive the wheel motors (item 2, fig 21).

  • Page 30: Hydraulic Systems

    1.23 OPERATION Hydraulic Systems Two completely separate hydraulic systems consisting of five different circuits are fitted to the harvester. The hydraulic rams, discharge elevator and spreader unit are powered from the tractor external supply. The webs and the other hydraulically driven elements on the machine are supplied from four PTO driven pumps and the onboard oil supply.
  • Page 31 OPERATION 1.24 The auxiliary valve bank is capable of operation with open centre, closed centre, or load sensed tractor systems. When sweeping clod fingers are fitted, an additional valve section is added to the end of the valve block after the elevator/spreader section. Fig 25 Fig 26 Item 1 = Drawbar steer...
  • Page 32 1.25 OPERATION Circuit 3 The pump (item 2, fig 27) powers the rear separator unit. From the pump the feed is into the valve (see fig 29). ON/OFF control and scroll speed is proportionally controlled from the touch-screen. The clod rollers are in a series circuit fed from a double-acting valve allowing the clod roller set to be reversed.
  • Page 33 OPERATION 1.26 Circuit 5 The pump (item 4, fig 27) powers the front separator unit. From the pump the feed is into the valve (see fig 31). On/off control and scroll speed is proportionally controlled from the service terminal. The clod rollers are in a series circuit fed from a double-acting valve allowing the clod roller set to be reversed.

  • Page 34: Electrical Control System

    WARNING: Always switch off the electrical control system before transporting the harvester on the road. Control of all the operating functions of the T2 are through the Can-bus control system. The in-cab controls are covered by the touch-screen service terminal (Item 1, fig 33) and the slave box (Item 2, fig 33).

  • Page 35: Harvesting

    HARVESTING 1.28 Starting Off Your Harvester Before commencing work whether starting off a new machine or starting work in a new field, it is advisable to carry out the following checks. Ensure the harvester is level when hitched to the tractor. Ensure the hydraulic and electrical connections from the tractor are correctly made and are secure.
  • Page 36 1.29 HARVESTING The speed and efficiency of mechanical harvesting can be greatly improved by good planting techniques and adequate cultivation methods. Visually check behind the harvester. If cut or sliced potatoes are evident, the digging depth or disc settings may be incorrect.

  • Page 37: Getting The Best Results During Harvesting

    HARVESTING 1.30 In stony conditions: In stony ground a stone can become wedged between the share blades preventing penetration. Make sure discs are kept sharp so that they cut the haulm and prevent wrapping and blockages around the roller mountings. Damage prevention: Do not hold the crop on the roller cleaner unit longer than necessary.
  • Page 38 1.31 HARVESTING Anti-roll Flaps/Haulm Intake Rollers Ensure the anti-roll flaps fill the gap between the discs and do not stop them from turning. If you experience problems with haulm rapping around the front roller mountings, the haulm intake rollers (if fitted) are adjustable forwards and sideways to position them for optimum performance.
  • Page 39 HARVESTING 1.32 Sweeping Clod Fingers (optional) The first row of the sweeping clod fingers should be set higher than the second row. The motion of the fingers should gradually disturb the ridge. If fingers are set too low then a restriction, and damage will occur causing loss of output.
  • Page 40 1.33 HARVESTING The clod rollers will normally be adjusted to run approximately 1 to 2 mm away from the tip of the scrolls for effective haulm removal. Star Separator Units Insufficient starflow speed will cause a nipping effect on the crop. Excessive speed will propel soil/crop over the separating area.

  • Page 41: Maintenance

    MAINTENANCE 1.34 Maintenance of the Hydraulic Systems The components utilised in the design of the hydraulic systems have been chosen for their maintenance free characteristics. Should it be necessary to remove any of the hydraulic components, cleanliness is of the utmost importance. Before breaking any connection in the system, ensure the surrounding area is clean.
  • Page 42 1.35 MAINTENANCE The shut-off valves (item 2 & 3, fig 36) connected to the pump case drain lines allow maintenance to be carried out without draining the oil tank. The two suction filter elements should be replaced after the first 50 hours running time and then every 500 hours or annually thereafter.

  • Page 43: Residual Hydraulic Pressure Dump Procedure

    MAINTENANCE 1.36 To replace a pressure filter element: Switch off the tractor engine and apply the hand brake. In the case of the auxiliary circuit pressure filter (item 1, fig 37), operate the spool valve feeding the harvester to release any residual pressure and then disconnect the feed hose from the tractor.

  • Page 44: Steering Ram Link Circuit

    1.37 MAINTENANCE Steering Ram Link Circuit The two axle steering rams are connected via a link circuit which ensures both rams actuate by equal amounts in opposite directions when turning. The link circuit diverts the oil within the annular section of the extending ram into the annular section of the ram opposite thus retracting that ram by the same amount.

  • Page 45: Bleeding / Filling Wheel Motors

    MAINTENANCE 1.38 Bleeding / Filling Wheel Motors Place the wheel motor (item 1, fig 41) in a position in which the filler plug (item 2, fig 41) is at the top. Remove the plug and pour in hydraulic oil until all trapped air has been eliminated.

  • Page 46: Roller Table Oil Seal Replacement

    1.39 MAINTENANCE Roller Table Separator Oil Seal Replacement The roller shafts (item 1, fig 42) are each fitted with an oil seal (item 2, fig 42) which is press-fitted into the gearbox casing. The seals prevent loss of oil from the gearbox and also prevent the ingress of dirt.

  • Page 47: Maintenance Of The Electrical System

    Machine Lubrication Regular lubrication will ensure that the Standen T2 provides a long and efficient service life. Depending on soil and weather conditions, the service schedule can vary. It is recommended that the harvester be given a thorough inspection at least weekly during the working season and at this time the machine should be greased and the gearbox oil levels checked.

  • Page 48: Daily Maintenance

    1.41 MAINTENANCE Daily Maintenance During the working season the following daily maintenance should be carried out. Check all covers and guards are in position, free from damage, and all retaining latches and hinges are in place and operative. Repair or replace any found to be defective before operating the machine.

  • Page 49: Out Of Season Storage

    Check stars and replace any worn parts. Check metalwork (e.g. side plates) for any damage or wear and repair or replace as necessary. Replace the pressure and suction filter elements Use only genuine Standen replacement parts. Out of Season Storage The machine can frequently operate in soils which contain residual chemical fertilisers etc.

  • Page 50: Dimensions

    M16 bolt/steel nut 230 Nm (170 lb/ft) M20 bolt/steel nut 440 Nm (325 lb/ft) M24 bolt/steel nut 766 Nm (565 lb/ft) Standen Engineering's policy of continual product development means that specifications may be altered without prior notice. All dimensions are approximate.
  • Page 51 CONTENTS DIAGRAMS Auxiliary hydraulics Powered Axle Hydraulics Digger Web, Sieving Web & Rotary Agitator Hydraulics Omega Separator & Omega Feed Unit Hydraulics Omega Separator & Omega Transfer Unit Hydraulics...

  • Page 53: Diagrams

    DIAGRAMS Auxiliary Hydraulics...

  • Page 55: Powered Axle Hydraulics

    DIAGRAMS Powered Axle Hydraulics...

  • Page 57: Digger Web, Sieving Web & Rotary Agitator Hydraulics

    DIAGRAMS Digger Web, Sieving Web & Rotary Agitator Hydraulics...

  • Page 59: St Omega Separator & Omega Feed Unit Hydraulics

    DIAGRAMS Omega Separator & Omega Feed Unit Hydraulics...

  • Page 61: Nd Omega Separator & Omega Transfer Unit Hydraulics

    DIAGRAMS Omega Separator & Omega Transfer Unit Hydraulics...

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