OPERATION
SPECIALTY/AFX ROTOR
Crop
Rotor Speed
Concave
Setting
Grate
Cleaning System Type
Short (1620, 1640, 1660,
1680)
Long (1644, 1666,
2144, 2166, 2344,
2366)
Long (1680, 1688,
2188, 2388)
1620
1640
1644
1660
1666
1680
1688
Indicator
Setting
Type Type
Chaffer
Setting
Shoe
Setting
Fan
RPM
Paddle
Blade
Fan
RPM
Cross
Flow
Chaffer
Setting
Frt.-Mid.-
Rear
Shoe
Set-
ting
Fan
RPM
Cross
Flow
Chaffer
Setting
Frt.-Mid.-
Rear
(three lever)
Shoe
Setting
Fan
RPM
Paddle
Blade
Fan
RPM
Cross
Flow
Barley
750 800 750 2 SW Slotted 1/2 1/4 750 1000
1/2-1/2-
5/8
3/8 1000
1/2-1/2-
5-8
3/8 1000 1000
Corn
450 400 350 3-5 LW Bar 1/2 3/8 1000 1100
1/2-1/2-
5/8
3/8 1100
1/2-1/2-
5/8
1/2 1100 1100
Edible Bean
550 600 400 3-5
LW/
Slotted
2388
Bar 5/8 1/2 900 1050
1/2-1/2-
1/2
3/8 1050
1/2-1/2-
1/2
5/16 1100 1100
Grass
650 600 550 2-4
Slot/
Solid
3/8 1/4 400 450
1/4-3/8-
3/8
1/4 450
3/8-1/2-
1/2
1/4 450 450
Milo/
Maize
700 600 450 3 LW Bar 1/2 3/8 900 1100
3/8-1/2-
1/2
5/16 1100
3/8-1/2-
1/2
3/8 1050 1050
Rice
1050 850 900 2 LW Bar 1/2 5/16 750 800
3/8-3/8-
1/2
5/16 880
3/8-3/8-
1/2
5/16 880
880
Soybeans
700
700
700
3-4 LW Bar 5/8 3/8 1000 1100
1/2-5/8-
5/8
3/8 1050
1/2-5/8-
5/8
1/4 1100
1100
Sunflower
420 350 300 5
LW
Slotted
2388
Slot/
Solid
5/8 7/16 700 770
3/8-1/2-
5/8
7/16 770
3/8-1/2-
5/8
7/16 770 770
Wheat
1050 1000 750 2 SW Slotted 1/2 1/4 850 1050
1/2-1/2-
5/8
1/4 1050
1/4-1/2-
1/2
1/4 1050 1050
15
Table 15.1
Some soybean varieties may require rotor speeds up to 700 RPM or more.
1st Slotted, 2nd and 3rd solid.
Helical kickers to enhance material flow: two additional suggested for 1680: two additional suggested for 1660, 1666, 2144, and 2166.
Air volume may be regulated while harvesting light grasses by rotating the fan cut-off plate to a vertical position (Cross Flow Fan).
Do not open front of chaff sieve more then center section.
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