MAC215990
135
Revision A
Optional Sprockets
Sprocket
Machine
Hydraulics
Combine
Application
Optional Drive
Sprocket
Dual reel drive
sprocket (A)
20.68 MPa
(3000 psi)
New Holland CR, CX
Combining down rice
14/20 tooth
Lower sprocket (B)
—
All
Light crops
52 tooth
3.9.6
Ground Speed
Operating the header at the appropriate ground speed for the conditions results in cleanly cut crop and even feeding.
Reduce the vehicle
’
s ground speed in difficult cutting conditions to reduce equipment wear.
Use lower ground speeds when harvesting very light crops (for example, short soybeans) to allow the reel to pull in short
plants. Start at 4.8
–
5.8 km/h (3.0
–
3.5 mph) and adjust the speed as needed.
Higher ground speeds may require heavier float settings to prevent excessive bouncing, which can result in uneven cutting
and possible damage to the cutting components. If the ground speed is increased, the draper and reel speeds should
generally be increased to handle the extra material.
Figure illustrates the relationship between the ground speed and the area cut for the various sized headers.
3.9.7
Side Draper Speed
Operating with the correct draper speed is an important factor for achieving the desired flow of cut crop away from the
cutterbar.
Adjust the side draper speed to achieve efficient crop feeding onto the float module feed draper. For instructions, refer to
Adjusting Side Draper Speed, page 135
Adjusting Side Draper Speed
The side drapers carry the cut crop to the float module feed draper, which then feeds it into the combine. The speed is
adjustable to suit a variety of crops and crop conditions.
A
1006122
Figure 3.145: Side Drapers
Side drapers (A) are driven by hydraulic motors and a pump that
is powered by the combine feeder house drive through a
gearbox on the float module. Side draper speed is adjustable in
cab on the side draper speed control, which regulates the flow
to the draper hydraulic motors.
