Powerful John Deere engine is base equipment for 9870 STS™ Combine
PowerTech Plus 13.5L engine

PowerTech Plus 13.5L engine

The PowerTech™ Plus 13.5L engine is base equipment for the 9870 STS Combines.  
 
The 9870 STS PowerTech Plus rated horsepower is 440 and features a power bulge of 471 hp and an unloading power boost up to 473 hp.
 
Any 9870 STS Combine equipped with intelligent power management (IPM) operating with a John Deere StalkMaster™ corn head has a rated horsepower of 480, which features a power bulge and power boost of 514 hp.
 
This allows the operator to get more productivity from the combine while harvesting at higher ground speeds when chopping the stalks in the field.

 Model

Base code

 Engine hp at rated
(2200 rpm)

 Engine hp at full bulge
(2100 rpm)

Engine hp with boost

 9870 STS

Small grain

440

471

473

 9870 STS

Rice

440

471

473

 9870 STS

Corn

440

471

473

 9870STS with optional IPM

Corn

480

514

513

PowerTech Plus engine

PowerTech Plus engine

The PowerTech Plus enhancements of this engine include the following:
  • Increased performance with an unloading boost lasting up to five minutes
  • Automatic fuel priming
  • Fuel filter-change indicator
  • Water-in-fuel sensor
  • Meets all U.S. Environmental Protection Agency (EPA) clean-air regulations
  • Variable-geometry turbo-gate control for improved air-quality emissions
Other features for the 9870 STS engine are as follows:
  • Vertical oil filter for easy service
  • Wet-type sleeves for even heat dissipation
  • Positive, full-pressure lubrication system supplies parts with cooled and filtered oil
  • Gear-driven water pump does not have a belt to maintain
The electronic governor provides these benefits:
  • Sets timing and fuel delivery for positive starting—even in cold weather
  • Better fuel economy
  • Consistent power and torque for greater lugging ability
  • Ignition key shutoff for positive shutdown
  • John Deere engines provide power boost and power bulge by using software programmed in the electronic control unit
  • Power boost provides extra horsepower when unloading on the go and the engine is powering at rated horsepower
  • Power bulge delivers the reserve torque and power needed as engine rpm drops below rated speed
Base Equipment On : 9870 STS Combines
 
Last Updated : 15-Mar-2011