Description
See how the remotely adjustable counter knife bank works on the high-hood-mounted chopper of New Holland CR10 and CR11 combines. This walkthrough explains in-cab knife engagement, chopper-load sensing, cut-length control, horsepower management, and the self-guiding counter knife design.
Chapters:
0:00 Remote counter knife bank overview
0:11 Counter knife bank position and chopper rotation
0:34 Hydraulic adjustment and position sensing
1:02 Chopper-load sensor and cut-length decisions
1:36 Balancing knife engagement and horsepower
2:17 Fully retracted position and legacy CR comparison
2:41 CR10/CR11 self-guiding counter knife design
3:11 IntelliView 12 in-cab control and chop quality
Common questions covered in this video:
How is the counter knife bank adjusted? A hydraulic cylinder extends or retracts the bank, while a position sensor reports its engagement level in the cab.
Why would an operator reduce counter knife engagement? If acceptable cut length can be maintained at a lower setting, reducing engagement can lower chopper load and make more engine horsepower available for other tasks, such as increased ground speed.
What does 100% counter knife engagement mean? It means the knives are fully engaged for maximum interaction with the crop material.
How does the operator evaluate the setting? The operator compares the resulting cut length with chopper-load information and adjusts engagement for the crop and field conditions.
How does the CR10/CR11 design simplify adjustment? Guide tabs between the knives direct them into the chopper-floor slots, allowing engagement to be changed from the cab without manual realignment.
Where is the setting controlled? The operator selects counter knife engagement from the IntelliView 12 display while harvesting.
Technical glossary:
New Holland, CR10, CR11, CR7.80, CR8.80, CR8.90, CR9.80, CR9.90, remote counter knife bank, high-hood-mounted chopper, chopper rotor, over-the-top feed, hydraulic cylinder, position sensor, chopper gearbox, belt-load sensor, counter knife engagement, cut length, chop quality, engine horsepower, guide tabs, chopper-floor slots, IntelliView 12.
Topics covered:
• Remote counter knife bank on the CR11 high-hood-mounted chopper
• Counter knife position relative to the chopper rotor
• Hydraulic cylinder and position sensor operation
• Chopper gearbox belt-load sensing
• Adjusting engagement to achieve the desired cut length
• Reducing chopper load to free engine horsepower
• Differences from legacy CR7.80 through CR9.90 adjustment
• Guide tabs that align the knives with the chopper-floor slots
• In-cab control through IntelliView 12"