• Choice of working widths – 9.1 m, 11 m, 12.2 m and 13 m (30 ft, 36 ft, 40 ft and 42.5 ft).

• The 1990CCS™ is available in single or dual rank designs. The single rank has 381 mm (15-in.) row spacings and the dual rank offers 190.5 mm or 254 mm (7.5-in. or 10-in.) row spacings.

• Airflow is generated by a 447 mm (17.6-in.) diameter hydraulically powered fan.
• The system requires up to 34 lpm of hydraulic flow and a closed center hydraulic system.
• Air is channelled to the venturis through a plenum.
• The venturi generates an area where the seed is sucked into the air stream after it has fallen from the metering wheel.

• Accurate CCS™ SeedMetering Capability.
• Metering of the seed is done at the tanks.
• For durability, all CCS™ tanks are made of the same translucent plastic used on the 1910 Commodity Air Cart. Their specially designed shape ensures good clean-out, as there's no place for seed lodge.
• Features metering gates at each individual metering wheel.
• Features an oscillating seed agitation system.
• 2,467 L (70 Bushel) capacity on 9.1 m and 11 m (30 ft and 36 ft) models.
• 3,540 L (100 Bushel) capacity on 12.2 m and 13 m (40 ft and 42 ft) models.
• Three optional meters are colour-coded for quick reference:
• Black Narrow - Low rates and small seeds - sorghum/milo only.
• Black Medium - Medium rates to 80 lb./acre; medium and small size seeds - milo and wheat only.
• White - High rates of wheat, barley, oats, rice, and large seeds - soybeans.

• CT 350 - up to 32 rows.
• CT 450 - more than 32 rows.
• Electronic population rate control allows adjusting seeding rate on-the-go.
• A simple adjustment in the cab allows you to either increase/decrease your seeding rates to match your target population.
• Half-width disconnect allows you to seed point rows/headlands without overlapping, again saving you seed.
• Seed sensors are optical style.
• Optional seed blockage warning systems for CCS™.

• 457 mm (18-in.) Disk blade at 7-degree angle, slicing a furrow for the seed boot.
• Opener gauge wheel: 114 x 406 mm (4.5 x 16-in). semi-pneumatic wheel gauges depth.
• Opener gauge wheel adjustment from 13 to 89 mm (0.5-3.5-in.) in 635 mm (25-in.) increments.
• The opener disk rides on a hub with triple-lip dual-tapered roller bearings.
• Opener press wheel: 25.4 x 254 mm (1x10-in.) press wheel firms seed into bottom of furrow to promote germination.
• Down pressure on the press wheel can be adjusted from 2.2 to 20 kg (5 to 45 lb.) (3 settings) to match soil conditions without the use of tools.
• Features rubber on tyre flexes, enabling wheel to remain free of mud and trash and not pick up seeds.
• 25.4 x 305 mm (1 x 12-in.) cast wheel @ 15 degree vertical angle with 12-19.5 kg (26-43 lb.) down pressure.

The 1990CCS™ features a three-section drawn flexible frame with floating hitch and over-centre fold for transport.

• Wings flex 20 degrees up and 10 degrees down.
• 108/112-degree over-centre fold.
• 102 x 152 mm (4 x 6-in). cross tubes and 51 x 152 mm (2 x 6-in). end tubes.
• 1,341 mm (52.8-in.) between ranks of openers.
• Contour-following ability.

• Dual wheels on centre frame with 11L x 15 In. load range D implement tyres.
• Single wheels on wing frames with 11L x 15 In. 8 PR implement tyres.
• 11L-15 tyres feature 8-bolt hubs and rims on the mainframe, with 6-bolt hubs and rims on wing wheels.
• 31 x 13.5-15 tyres are optional.

• Reduced maintenance. The meter feed wheels, venturis, meter cups, agitator, delivery fan, and delivery hoses don't have any maintenance requirements and aren't high wear parts.
• Better population control than a box drill or an air seeder.
• Dual rank models use a new, larger 32 mm (1.25-in.) diameter flow splitter with optional shut-off gates to evenly divide seed flow between front and rear ranks.
• A 447 mm (17.6-in.) diameter, hydraulically driven fan provides more air flow at lower fan speeds.
• Adjustable bin-level sensor.

• SMV emblem.
• Implement warning lights (seven pin terminal auxiliary electric outlet required on towing tractor).
• Hitch safety chain.
• Hitch jack.
• Non-skid platform and ladder.

Today, that remains the goal of every John Deere air seeding tool. But to boost your efficiency up even further, turn to John Deere GreenStar™ systems. From guidance systems to record-keeping and mapping software, GreenStar™ products are designed to help you make the most of your equipment investment.

In particular, Parallel Tracking™ or AutoTrac™ are great options to increase field efficiency, eliminate costly field overlap, and provide relief for operator fatigue.