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Toolbox Home | About the Toolbox | Suppliers

Control Modifications

Subcategories

Clutch Control
Steering Control
Implement Guidance Systems
Brake Control
Cab Control Modifications
Tractor Remote Hydraulic Port Control
Combine Header Control
Throttle Control

Products

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    Photo of tractor pulling an engaged chisel plow

    AgGPS Autopilot Steering Assistant

    Pictured are the components described (cylinder

    Air-Operated Clutch

    Pictured is a head-on view of a standard-looking steering wheel; between it and the steering column is unit that houses the device’s programming control board.

    Auto-Steer for Older Tractors

    Two photos: (1) the in-cab touch-screen monitor immediately to the right of the steering wheel and (2) the cab roof-top-affixed GPS-receiving antenna unit.

    AutoFarm GPS Steering Control System

    No Longer Produced
    At the left end of the tractor’s dashboard is the 3-foot-tall lever immediately above the clutch

    Automotive Parking Brake-Type Clutch Lever

    AutoTrac Controller Steering Kit

    Pictured is the bottom portion of two levers

    Custom-Built Removable Hand Control

    Pictured is an adult male’s right foot depressing one of the two pedals of the 6-inch-wide by 4-inch deep foot switch.

    Dual-Circuit Foot Switch

    No Longer Produced
    Two photos: (1) the control levers on both sides of the steering console; and (2) the 1-inch-wide plate with roller bearing that travels up the clutch shaft.

    Dual-Control Hand Clutch

    Pictured mounted next to the tractor’s remote hydraulic ports is the electro-hydraulic valve and the valve-ports connected by hoses.

    Electric Hydraulic Controls

    Pictured is the actuator box with the actuator extended vertically to push up the 2-inch-long pin that protrudes horizontally from the foot pedal linkage.

    Electrically Actuated Clutch

    Pictured atop its angle-adjustable mounting base is the joystick with at least nine programmable push buttons.

    EZ Remote GPS Joystick

    No Longer Produced

    Finger-Controlled Electric Clutch

    Deatz’ left foot is next to the switches he installed—one that turns on/off the header’s float control

    Foot-Operated Header Control Switches

    Rocker plate attached to base with bolted hinge and spring-loaded buttons

    Foot-Operated Header Height Controls

    Ford Tractor Foot Feed Kits

    Two photos—(1) The extensions added to the 4650’s gearshift lever and its PTO lever; (2) the Hydro’s transmission lever relocated from the left to the right of the steering wheel.

    Gearshift and Throttle Lever Extensions

    Hand Brake Levers

    Slipped over each of the cab’s comfort-control knobs is piece of radiator hose that serves as an easy-to-grasp extension.

    Heater/Air Conditioner Control Knob Extensions

    Person's left leg below knee pushing on stirrup attached to clutch pedal on John Deere tractor.

    Homemade Clutch Pedal Stirrup

    The bottom portion of the bent bar stock hand control clamped to the shaft immediately above the pedal.

    Homemade Removable Hand Control with Clamping-Style Base

    Left pic of white seat with black Joystick Steering System for Fendt Tractors. Rt pic of man in cab using the same.

    Joystick Steering System for Fendt Tractors

    Pictured is the operating console that includes the joystick

    Joystick-Operated Fendt Vario Tractor

    Mounted at the end of the driver’s seat right-side armrest is the device

    Latching Relay Solenoid

    Shown is a length of cloth

    Lever Gripping Splint

    Hand brake lever with V-shaped handle attached to tractor’s brake pedal

    Mechanical Hand Brake Levers

    Three photos—(1) the levers on both sides of the driver’s seat; (2) the rotating horizontal shaft that runs behind the seat; and (3) the left side levers wire-connected to the shaft.

    Mechanical Lever Transfer

    Operating the steering wheel-mounted device (consisting of knob and control unit) is an adult hand

    Mini-Touch Vehicle Control Pad

    Pictured parallel and immediately to the right of the tractor steering wheel is the joystick steering control.

    Momentary Joystick Steering Control

    Monarch Electric Autonomous Tractor in a field towing a John Deere bush hog mower

    Monarch Electric Autonomous Tractor

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This work is supported by the Assistive Technology Project for Farmers with Disabilities, project award no. 2021-41590-34813, from the U.S. Department of Agriculture’s National Institute of Food and Agriculture.

Copyright © 2008-2026 Purdue University, all rights reserved. Purdue University is an equal access/equal opportunity university.

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