John Deere STS12

STS12

  • John Deere
  • Self-Propelled Sprayers & Application Equipment

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Key Features & Specs
  • One machine, full-season versatility
  • All-wheel steer (optional) reduces turn radius
  • Perform late-season applications with Tall Corn Package
  • John Deere Precision Ag Technologies
  • 360 Undercover lets you apply nutrients and fungicide/insecticide in same pass
  • Engine hp 300 (221 kW)
  • Solution Capacity 1,200 gallons (4,500 L)
  • Boom Sections 9
  • Application Speed 20 mph (32 km/h)
  • Transport Speed 35 mph (56 km/h)
  • Boom Width up to 120 feet (36.6 m)
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  • Agitator performance for the STS12 Sprayer
    See corresponding letter descriptions belowSee corresponding letter descriptions below

    Agitator performance chart key:

    • A - flow (gpm)
    • B - agitation pressure (psi)
    • C - input flow (gpm)
    • D - output flow (gpm)
    • E - recommended flow for wettable powder mixes
  • Frame and axles
    Chassis mainframeChassis mainframe
    Horizontal cross-through axle tubeHorizontal cross-through axle tube

    The STS Series mainframe design features horizontal cross-through axle tubes, as well as boom and platform mounts on weldment.

    • 144.8-cm (57-in.) mainframe width (from outside of each mainframe tube)
    • 301-cm (118.5-in.) mainframe width (from outside of each boom cradle weldment)
    • 188-cm (74-in.) ground clearance
  • STS Series cab and controls overview
    Front console
    Front console steeringFront console steering
    Front console telescopeFront console telescope
    Front console tiltFront console tilt
    Front console foot controlsFront console foot controls
    Location (image)ComponentDescription/notes
    ASteering wheelOptional premium leather-wrapped steering wheel
    BHazard/warning lights switch---
    C Highway/warning lights switch---
    D Turn signal indicatorLeft-hand side 
    E Highway running lights indicator---
    FHigh beams indicator---
    GTurn signal indicatorRight-hand side
    HSteering wheel telescope adjust handleAvailable only if equipped with this option 
    ISteering column tilt adjust buttonKnee angle
    Available only if equipped with this option
    JSteering column release pedal---
    KOperator foot pegsTwo pegs
    Available only if equipped with this option
    LDeceleration (decel) pedal---
    MHorn---
    NWindshield washer---
    OTurn signal lever---
    PWindshield wiper speed---
    QHigh beams (brights)---
    Side console
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    Location (image)ComponentDescription/notes
    AEmergency stop (e-stop) switch

    The e-stop switch provides a quick and positive method for stopping the engine in an emergency situation.

    BFoam marker switch (if equipped)The foam marker switch controls foam application on both sides of the machine.
    C Rinse switchThe rinse switch is used to rinse the solution tank and spray booms.
    D Boom solution valve switches

    The boom solution valve switches each control a valve located on the boom or transom. The valves control the flow of the solution through the boom.

    E Fence row switch (left-hand side)

    The fence row switches are used in the selection of either the right or left fence row spray nozzle.

    FRate control switchesThe rate control switches control the rate in which solution is applied through the spray booms by either the rate controller (enable) or operator-controlled spray rate (manual).
    GRear nozzle switch

    The rear nozzle switch controls the two rear nozzles (located behind the rear tires).

    HPump speed and rate switches

    The pump speed/rate switches allow the user to increase or decrease flow rate through the spray system.

    IFence row switch (right-hand side)---
    JMain tank valve switch

    The main tank valve switch controls the solution tank valve. This switch must be in the on (open) position for spray application.

    KSolution pump switchThe solution pump switch is used to turn the solution pump on/off.
    LAgitation valve switchThe agitation valve switch controls the rate of flow through the agitation system.
    MBoom extension switches (left/right outer fold)The boom extension switches are used to extend or retract the outer boom extensions.
    NIgnition switch---
    OPower mirror switch (if equipped)The power mirror switch allows adjustment of the electric side-view mirrors vertically or horizontally by pressing the switch in the desired position.
    PHydrostatic drive control handleThe hydrostatic drive control handle controls the direction of the machine and the speed in which it travels. It is also used to control the spray booms, master spray, end row management, and shift up/down speeds.
    QTransom switch (up/down)The transom switch is used to raise and lower the main lift.
    RLeft-hand boom switchThe left- and right-hand boom switches are used to raise, lower, extend, and retract the spray booms.
    SRight-hand boom switchThe left- and right-hand boom switches are used to raise, lower, extend, and retract the spray booms.
    TMaster spray switchThe master spray switch activates the boom solution valves.
    UEnd row management switchThe end-row management switch is a programmable switch that enables various functions (i.e. all-wheel steer, auto steer, master spray, and NORAC® system enable) when the switch is depressed. End-row management settings are programmed through the machine display.
    VShift up switchThe shift up/down switches are used for speed range selection.
    WShift down switchThe shift up/down switches are used for speed range selection.
    XParking brake switchThe parking brake switch is used to engage and disengage the parking brake, as well as extend and retract the ladder.
    YThrottle switchThe throttle switch is used to control engine speed (rpm).
    ZRemote stereo controlsThe remote stereo controls are conveniently located to control the stereo (volume, mute, source, and seek).
    AA12-V power portsFour power ports are provided for the connection of additional items (such as radios and computer equipment).
    BBTwo auxiliary audio input connectionsThe auxiliary audio input allows connection of a personal iPod® device or MP3 player.
    Overhead monitors and controls
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    Location (image)ComponentDescription/notes
    ACourtesy/interior work light

    The courtesy light comes on automatically when the cab door is opened. The interior work light is activated by manually pressing the interior work light switch (located on the light housing).

    BStereo (if equipped)

    The stereo features an AM/FM tuner, weatherband broadcasting, CD player, MP3 player, USB/iPod device controls, and Bluetooth® wireless system (if equipped).

    C Climate controls

    The climate controls allow the operator to set and maintain desired cab temperature. Vents are placed throughout the cab to keep air circulating and to maintain clear windows throughout the cab.

    D NORAC monitor (if equipped)

    The NORAC monitor controls the automatic boom leveling system.

    E Spray system console

    The spray system is controlled by the spray system console and the solution pump control valve. The system receives data and automatically makes adjustments based on the target rate of application set by the operator.

    FMachine display

    The machine display is the central control center of the machine. It controls many of the machine’s electronically-driven functions (i.e. machine drive, AWS, attachment operation, tread adjustment, spray systems, lights, diagnostics, etc.). The sprayer can be configured with one of the following displays: John Deere GreenStar™ 3 2630 Display, Raven Viper® 4+ Display or Ag Leader® InCommand™ 1200 Display

    GMachine gauges

    The machine gauge panel on the A-post is conveniently located for viewing engine rpm, fuel level, engine coolant temperature, and engine aftertreatment level (if equipped).

    iPod is a trademark of Apple, Inc. NORAC is a trademark of NORAC Systems International, Inc. Bluetooth is a trademark of Bluetooth SIG, Inc. Viper is a trademark of Raven Industries, Inc. Ag Leader and InCommand are trademarks of Ag Leader Technology, Inc.

  • STS Series spray booms
    STS Series Sprayer boomsSTS Series Sprayer booms

    The spray booms are controlled by an electrohydraulic system. This system consists of operator-manipulated switches (located on the side console and the hydrostatic drive control handle) and hydraulic cylinders (attached to the booms), which provide lift, level, and horizontal extension.

    The spray booms are offered in a variety of configurations depending on the model and the producer's application needs.

     

    27.4-m (90-ft) boom with 38.1-cm (15-in.) row spacing
    #

    Numerical values key:

    1. Section one
    2. Section two
    3. Section three
    4. Section four
    5. Section five
    6. Section six
    7. Section seven
    8. Section eight
    9. Section nine

    Alphabetical values key:

    1. 18.3-m (60-ft) 24-row planter
    2. 9.1-m (30-ft) 12-row planter
    3. 9.1-m (30-ft) 12-row planter
    4. 9.1-m (30-ft) 12-row planter
    30.5-m (100-ft) boom with 38.1-cm (15-in.) row spacing
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    Numerical values key:

    1. Section one
    2. Section two
    3. Section three
    4. Section four
    5. Section five
    6. Section six
    7. Section seven
    8. Section eight
    9. Section nine

    Alphabetical values key:

    1. 18.3-m (60-ft) 24-row planter
    2. 3.05 m (10 ft)
    3. 9.1-m (30-ft) 12-row planter
    4. 9.1-m (30-ft) 12-row planter
    5. 9.1-m (30-ft) 12-row planter
    6. 3.05 m (10 ft)
    36.6-m (120-ft) boom with 38.1-cm (15-in.) row spacing
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    Numerical values key:

    1. Section one
    2. Section two
    3. Section three
    4. Section four
    5. Section five
    6. Section six
    7. Section seven
    8. Section eight
    9. Section nine

    Alphabetical values key:

    1. 9.1 m (30 ft)
    2. 18.3-m (60-ft) 24-row planter
    3. 9.1 m (30 ft)
    4. 9.1-m (30-ft) 16-row planter
    5. 9.1-m (30-ft) 16-row planter
    6. 9.1-m (30-ft) 16-row planter
    7. 4.6 m (15 ft)
    8. 9.1-m (30-ft) 12-row planter
    9. 9.1-m (30-ft) 12-row planter
    10. 9.1-m (30-ft) 12-row planter
    11. 4.6 m (15 ft)
    Boom configurations
    STS Series
    model    		Boom
    location
    		Minimum boom
    width (m, ft)    		Maximum boom
    width (m, ft)    		Number of
    boom sections    		Wet boom nozzle
    spacing (cm, in.)
    STS10Front

    27.4 m/30.5 m
    90 ft/100 ft)

    		36.6 m
    (120 ft)    		Nine38 or 51 cm
    (15 or 20 in.)
    STS12Front

    27.4 m/30.5 m
    90 ft/100 ft)

    		36.6 m
    (120 ft)    		Nine38 or 51 cm
    (15 or 20 in.)
    STS14Front

    27.4 m/30.5 m
    90 ft/100 ft)

    		36.6 m
    (120 ft)    		Nine38 or 51 cm
    (15 or 20 in.) 
    STS16Front

    27.4 m/30.5 m
    90 ft/100 ft)

    		 27.4 or 36.6 m
    (90 or 120 ft)

    Nine

    		38, 46, 51, or 76 cm
    (15, 18, 20, or 30 in.)

    Materials used in boom construction:

    • 27.4-m/30.5-m (90-ft/100-ft) booms - steel
    • 36.6-m (120-ft) booms - steel/aluminum hybrid
  • Hagie™ STS Series engines
    John Deere PowerTech™ PSS 6.8-L (415-cu in.) engine
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    Beginning with model year 2019, the Hagie STS10 and STS12 Sprayers utilize the John Deere PowerTech 6.8L (415-cu in.) diesel engine. This engine offers 208.8 kW (280 hp) with a peak power of 223.7 kW (300 hp) in the STS10 and 223.7 kW (300 hp) in the STS12. The reliable performance of these engines couple well with the drive system on the STS Sprayers to provide the operator excellent power on demand.

    Engine location
    Rear-mounted engineRear-mounted engine

    The rear-mounted engine keeps constant weight to offset the spray boom and leaves space in the center of machine for the varying weight of fuel and rinse tanks. This allows for better coolant airflow and reduction of cab noise.

    Engine exhaust
    Rear-located engine exhaustRear-located engine exhaust

    The engine exhaust is located at the rear of the machine. This helps to reduce interior cab and noise vibration.

     

    Hagie is a trademark of Hagie Manufacturing Company, LLC and similar to John Deere branded equipment, John Deere will also support Hagie equipment.

  • Solution tank, pump, and pump switch

    The solution system is a constantly monitored, continuously adjusted, computer-controlled system. The cab-mounted digital spray system console receives information from various inputs to help determine L/ha (gpa) and L/min (gpm).

    Solution tank
    Solution tankSolution tank
    Sprayer modelTank capacityTank type
    STS103785 L (1000 gal.)Standard - polyethylene tank
    Optional - stainless-steel tank
    STS124542 L (1200 gal.)Stainless-steel tank
    STS145299 L (1400 gal.)Stainless-steel tank
    STS166056 L (1600 gal.)Stainless-steel tank

     

    Solution pump
    Solution pumpSolution pump

    The Hypro® 9306C-HM1C-BU solution pump (located beneath center of machine) is a centrifugal-type, hydraulically-driven pump that is controlled by the solution pump control valve and the spray system console. It comes with silicon-carbide seals, 7.6-cm (3-in.) inlet plumbing and 5.1-cm (2-in.) outlet plumbing.

    The solution pump draws solution out of the tank at the rate determined during calibration. It dispenses solution through the many valves and hoses that make up the spray system and also dispenses fluids through the agitation and rinse systems.

    Solution pump switch
    Solution pump switchSolution pump switch
    Solution pump indicatorSolution pump indicator

    The solution pump switch is located on the side console and is used to turn the solution pump on and off.

    NOTE: When the solution pump is on, a solution pump indicator (located on the machine display home page - field mode) will be illuminated.

     

    Hypro is a trademark of Pentair Flow Technologies, LLC.

Boom

Boom length options 18/24/27, 18/30, or 36/40 m
60/80/90, 60/100, or 120/132 ft
Plumbing material Stainless steel
Ground height adjustment 46 to 264 cm
18 to 104 in.
Breakaway width For 27-m (90-ft) booms - 3 m
10 ft
For 30-m (100-ft) booms - 3.8 m
12.5 ft
For 36-m (120-ft) booms - 4.6 m
15 ft
Boom sections 7 or 9 sections on booms - 27/36 m
90/120 ft
Automatic boom height NORAC®