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Downshifting work vehicle using differential lock switch

  • US 5,026,335 A
  • Filed: 03/03/1989
  • Issued: 06/25/1991
  • Est. Priority Date: 03/03/1989
  • Status: Expired due to Fees
First Claim
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1. A self-propelled work vehicle for performing a work operation, the vehicle comprising:

  • a supporting structure;

    ground engaging wheels mounted to the support structure;

    a prime mover supported by the supporting structure, the prime mover supplying power to the vehicle;

    a transmission operatively coupled between the prime mover and the ground engaging wheels for propelling the vehicle, the transmission having at least two gear positions, the transmission is also provided with a lockable differential, the lockable differential having an actuation switch for locking the lockable differential; and

    a control system for shifting the transmission from one gear to the other, the control system having a control switch that triggers the system and is interconnected with the differential lock switch, whereby actuation of the differential lock switch triggers the control system for shifting the transmission when the control switch is actuated.

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