Bringing Agricultural Tractor Hydraulics to Life at -30°C

Paper #:
  • 940094

Published:
  • 1994-02-01
Citation:
Macdonald, D., "Bringing Agricultural Tractor Hydraulics to Life at -30°C," SAE Technical Paper 940094, 1994, https://doi.org/10.4271/940094.
Pages:
6
Abstract:
The intent of this paper is to explain specific considerations necessary to successfully start up and use an axial piston hydraulic pump system at -30°C without changing to a winter-grade hydraulic fluid. The particular vehicle involved was a new design of agricultural tractor. Testing was done on drivetrain parts in a small cold room, and complete prototype tractors were tested in a large cold room. The modifications to the hydraulic system resulted in a vehicle which starts readily at -30°C and can start to steer in less than one minute.
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