Krause - 3990 Series "Flex-Wing" Tandem Disc Harrow

3990 Series
"Flex-Wing" Tandem Disc Harrow

Features

Model 3994 WR shown (34ft. width)

3-Section,
31 - 34 ft.

The new 3990 carries on the same gang angles (17 degree) and weight class (average 375 lbs. per foot of cut) of the highly popular Krause 3950 Series flex-wing discs, but in larger 31 ft. and 34 ft. sizes.

You'll appreciate the 3990's clean new look, with nothing to block the operators view over the disc when working in the field. Blade spacing choices are 7 3/4" or 9 1/8" and you can choose from standard or Rock-Flex bearing arms. All 3990's come equipped with 22" diameter disc blades. The overlapping front gang design results in a level, ridge-free field finish. Changing operating depth is simple and precise with the 3990's single location remote depth controls.

New heavy-duty square tube rock shafts feature depth control cylinders that act directly on each wheel arm to greatly reduce frame stress and torsion. Rocker shafts pivot smoothly on 1 3/4" diameter pins and hardened steel wear sleeves for extended life with minimal maintenance. For fine tuned side to side leveling simply adjust the "eye-bolts" at the base of the wing cylinders. Dual wheels with heavy-duty 6-bolt hubs are standard equipment on the center and wings of all 3990's.

Graphic:Tongue design

The 3990's new tongue design is long and narrow for unrestricted turning and the extra-wide rear beam reduces turning forces imparted to the main frame. Self-leveling system automatically levels the disc when working depth changes are made. Handy turnbuckle makes fine-tuned adjustments quick and easy.

Features Continued on Next Page

Massive main frame outer beams are a full 6" x 6" and an additional 4" x 5" center beam imparts even more strength and rigidity for years of trouble free discing. Center frame gang beams add to this foundation of strength with 5" x 3" x 3/8" structural steel construction.

Graphic:Wing frames

Extra-strong wing frames feature 6" x 6" outer front to rear beams and 4" x 6" inner front to rear beams with generous cross bracing for even more rigidity. Krause mounts the 3990's wing rocker shaft to both the outer and inner front to rear frame beams for greater strength and resistance to side loading during tight field turns. Optional Rock-Flex bearing arms shown absorb shock and extend blade and bearing life.

Graphic:Hydraulic hose end holders

New hydraulic hose end holders
keep tips out of the dirt when not in use.