B - Operations – Transporting – 60 – K
Patent
B - Operations, Transporting
60
K
138/41.1
B60K 17/28 (2006.01) B62D 49/06 (2006.01)
Patent
CA 1099193
CONTROL FOR TRACTOR POWER TAKEOFF SHAFT ABSTRACT OF THE DISCLOSURE A tractor having a hydraulically driven power take- off shaft in which manipulation of a control handle in -the forward direction causes the speed of the shaft to be varied in accordance with the position of the handle and also in accordance with engine speed. When, however, the control handle is moved to the extreme forward position, the power takeoff shaft is operated at either of two selected constant speeds regardless of engine speed as long as the engine speed is adequate to maintain such constant speed. When the control handle is moved in the opposite direction towards reverse position, the power takeoff shaft is driven at a variable speed, dependent on the position of the handle and on the engine speed. This speed is relatively low as compared with that of the forward speeds. The tractor is provided with a manually operated energy shutoff control adjacent the power takeoff shaft, in the form of a push button switch which can be actuated whenever a sudden termination of the shaft operation is desired. There are also other switches for terminating operation of the shaft including the engine ignition switch, a temperature responsive switch, an excess load switch, and a low pump pressure switch. There are various indicators on the control panel in the driver's compartment of the tractor to indicate different conditions that exist such as which of the two maximum constant speeds have been selected, and so forth.
310246
Steiger Tractor Inc.
Swabey Ogilvy Renault
LandOfFree
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