Posted: October 28th 2012 @ 12:00 AM in John Deere Combine

The S-Series Combines include multiple customer-driven enhancements.
New styling New cab  Feederhouse structure improvements Rotor options Cleaning shoe performance enhancements Grain tank structure improvements Grain handling enhancements Residue management options 

These new enhancements, along with new emission compliance and technology delivered by the John Deere PowerTech™ PSX engine (Interim Tier 4/Stage IIIB emissions certification), resulted in a nominal weight increase across the S660, S670, S680, and S690 Combines.
 
On average, the S670 weighs approximately 1400 kg (3000 lb) or 7 percent more than the 9770 STS. The additional weight to the S670 Combine is due to the following changes:
  • New, larger cab. This feature provides excellent operator visibility. In addition, a heavier cab and ladder landing structure was incorporated into the design of the machine to support the new cab.
  • Improved feederhouse structure. Feederhouse structure improvements were made to enable customers to run the new generation of high-capacity front-end equipment.
  • Chassis and rear axle enhancements. Chassis and rear axle enhancements were made to handle the additional weight associated with the grain tank structure and the Interim Tier 4/Stage IIIB engine platform.
  • PowerTech PSX engine. Engine deck structure improvements were made to enable Interim Tier 4/Stage IIIB emissions compliance and make possible ease of access and service to the engine deck area.
  • Heavier load rating tires. The heavier load rating tires enable the combines to handle the new generation of high-capacity front-end equipment.
  • Enhanced cleaning shoe. The S670 has a larger cleaning shoe area (chaffer and sieve area) to help deliver up to a 15 percent increase in cleaning capacity over the 9770STS. In addition to the larger cleaning shoe area, S-Series Combines have an isochronous governor which keeps shoe speeds constant, enhancing cleaning shoe and overall machine performance.
With these updates, the S670 offers a matched solution to the new generation of high-capacity front-end equipment from the feederhouse to the residue management package.
 

The following table compares model year 2011 9770 STS to model year 2012 S670.
 
NOTE: Weights are approximate for both models.
 
General combine configuration

MY2011 9770 STS

MY2012 S670

Lateral tilt feederhouse with reverser

X

X

CommandTouch™  multi-speed feederhouse drive

X

X

ProDrive™ transmission

X

X

7.9-m (26-ft) unloading auger

X

X

Rear wheel assist (two-speed)

X

X

Drive tires: 520/85R42 157A8 R1

X

-

Steer tires: 600/65R28 154A8 R1W

X

-

Drive tires: 520/85R42 165A8 R1

-

X

Steer tires: 28L-26 12 Ply R1

-

X

Approximate weight

17,200 kg (38,000 lb)

18,600 kg (41,000 lb)