Earth working – With indicating or sighting means
Patent
1989-09-01
1990-06-12
Reese, Randolph A.
Earth working
With indicating or sighting means
172328, 74DIG7, 116281, 116283, A01B 6314, A01B 7102
Patent
active
049324764
ABSTRACT:
A level indicator for a disk harrow or the like having a motorized on-the-go leveling adjustment. A small diameter flexible cable is attached to the spring retainer which bears against one end of the coil spring on an adjustable link structure located between pivoting hitch structure and the adjustable ground wheels. The opposite end of the cable is attached to a slide which is free to move vertically in a bracket fixed to the motor mounting bracket. The weight of the slide maintains tension on the cable and as the motor is activated to move the spring retainer relative to the motor mounting bracket, the cable moves the slide vertically to provide an indication of the leveling adjustment. The consistent relationship between the spring retainer and the motor bracket at a given adjustment position provides an easy to read indication even though the entire leveling system may be moving relative to the machine frame.
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John Deere 330 Round Baler Operator's Manual (OM-E75043), pp. 35-5, 55-7 and 55-8 (Jul. 1985).
John Deere 335 and 375 Round Baler Parts Catalog (PC-2274), pp. 40-41, 71"72 (17 Jan. 1989).
John Deere 2810 Moldboard Plow Operator's Manual, p. 25-2 (6-89).
Deere & Company
Reese Randolph A.
Thompson Jeffrey L.
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