System and method for restricting gear shift operation in timber

Details System and method for restricting gear shift operation in timber System and method for restricting gear shift operation in timber

1999-01-06

2000-05-30

Estremsky, Sherry L.

Machine element or mechanism

Gearing

With fluid drive

747321, 475 74, 475 78, 477 36, 477125, F16H 4702

Patent

active

06067878&

ABSTRACT:
A system for automatically preventing gear shift operation in a timber harvesting tractor when the tractor is moving. The system includes a drive train powered by a transmission. The drive train includes a transfer case which is shifted by the operator of the tractor through manipulation of an electrical control circuit. The electrical control circuit is rendered ineffective to shift the transfer case when the drive train is being driven by the transmission and the tractor is moving.

REFERENCES:
patent: 4488457 (1984-12-01), Nishimura et al.
patent: 4680983 (1987-07-01), Brown
patent: 5678462 (1997-10-01), Bausenhart et al.

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