MAC215986
178
Revision A
3.9.12
Reel Tine Pitch
Reel tine pitch is a term used to describe the position of the reel fingers in relation to the cutterbar. The reel tine pitch can
be changed by changing the reel fore-aft position and the reel cam setting. You may wish to change the reel tine pitch to
suit different harvesting conditions.
Changing the reel position has the largest impact on the reel tine pitch. Changing the cam setting, on the other hand, has a
smaller impact on reel tine pitch. For example, with the cam position range at 33°, the corresponding finger pitch range is
only 5° at the lowest point of the reel
’
s rotation.
For the best results, use the minimum cam setting that delivers the crop past the rear edge of the cutterbar and onto the
drapers. For more information, refer to
3.7.2 Header Settings, page 71
Reel Cam Settings
Changing the cam position allows you to adjust the point at which the reel fingers release gathered crop to the drapers.
Recommendations are provided for reel cam settings in various harvesting conditions.
The setting numbers are visible above the slots on the cam disc. For instructions, refer to
.
NOTE:
For the recommended reel tine pitch setting to use in various harvesting conditions, refer to
.
1001819
Figure 3.253: Finger Profile
–
Position 1
Cam Position 1, Reel Position 6 or 7
delivers the most even
crop flow onto the drapers without fluffing or disturbing the
material.
•
This setting will release crop close to the cutterbar. Use this
setting when the cutterbar is on the ground while
harvesting.
•
Some crops will not be delivered past the cutterbar when
the cutterbar is raised off tof he ground while the reel is far
forward. Therefore, set the initial reel speed so that it close
to the ground speed.
1001820
Figure 3.254: Finger Profile
–
Position 2
Cam Position 2, Reel Position 3 or 4
is the recommended
starting position for most crops and conditions.
•
If the crop is stalling on the cutterbar when the reel is in the
forward position, increase the cam setting to push the crop
past the rear edge of the cutterbar.
•
If the crop is getting fluffed or if there is a disruption to the
flow across the drapers, decrease the cam setting.
•
This setting results in the reel fingertip speed being
approximately 20% faster than the reel speed.