Power take-off control with parking brake interlock

Details Power take-off control with parking brake interlock Power take-off control with parking brake interlock

1985-09-06

1987-04-14

Reger, Duane A.

Fluid-pressure and analogous brake systems

Releasing

Motor

303 6M, B60T 1300

Patent

active

046573119

ABSTRACT:
A fluid pressure control system engages the power take-off of a tractor-trailer combination vehicle equipped with air brakes while simultaneously applying the parking brakes of both the tractor and the trailer. However, when the vehicle is to be moved and the power take-off disengaged, the vehicle operator must, in addition to moving the power take-off control to the position disengaging the power take-off, must also operate the parking control valves which release the parking brakes on both the tractor and the trailer. Accordingly, the parking brakes cannot be inadvertently released by merely disengaging the power take-off control, although engagement of the power take-off control automatically sets or applies the parking brakes on both the tractor and the trailer.

REFERENCES:
patent: 4058345 (1977-11-01), Klimek
patent: 4163584 (1979-08-01), Koenig

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